Stockholders' Equity - Additional information (Details)
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4 Months Ended |
12 Months Ended |
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Sep. 03, 2021
USD ($)
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Aug. 13, 2021
$ / shares
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May 17, 2021
USD ($)
$ / shares
shares
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Oct. 14, 2020
USD ($)
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Oct. 08, 2020
USD ($)
$ / shares
shares
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Jul. 07, 2020
USD ($)
$ / shares
shares
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Jul. 01, 2020
shares
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Jun. 11, 2020
USD ($)
$ / shares
shares
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Jun. 04, 2020
$ / shares
shares
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May 26, 2020
USD ($)
$ / shares
shares
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May 25, 2020 |
May 20, 2020
$ / shares
shares
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Mar. 25, 2020
USD ($)
shares
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Jan. 04, 2020
$ / shares
shares
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Nov. 30, 2020
shares
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Aug. 31, 2021
USD ($)
$ / shares
shares
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Aug. 31, 2020
USD ($)
$ / shares
shares
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Aug. 22, 2021
$ / shares
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Jun. 04, 2021
shares
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Jan. 31, 2020
$ / shares
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Shares conversion ratio |
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1
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Preferred stock, per share | $ / shares |
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$ 0.0001
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$ 0.0001
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$ 0.0001
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Compensation expense | $ |
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$ 62,100,000
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$ 1,594,000
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$ 1,526,000
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Expected maturity period |
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10 years
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3 years 9 months 7 days
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Risk-free interest rate |
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0.47%
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Volatility |
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134.00%
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Fair value exercise price per share | $ / shares |
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$ 0.0001
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Price per share | $ / shares |
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$ 3.62
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$ 0.75
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Number of options available for grant to founder shareholders |
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3,000,000
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Exercise price of warrants | $ / shares |
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$ 2.425
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Gross proceeds from issuance of shares | $ |
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$ 12,000,000
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Placement agent fees and costs | $ |
$ 900,000
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$ 789,000
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Percentage on aggregate number of shares of common stock |
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7.00%
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Percentage of warrants exercisable price on offering price |
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5.00%
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Common stock shares issued |
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25,863,099
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16,902,146
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Share options, cancelled during the year |
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148,959
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Granted |
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1,235,159
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840,000
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1,506,096
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Amended March 2019 Notes Warrants [Member] |
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Warrants Outstanding |
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66,288
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May 2020 Common Warrant [Member] |
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Price per share | $ / shares |
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$ 5.94
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Warrants Outstanding |
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111,108
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Percentage on aggregate number of shares of common stock |
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5.00%
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Percentage of warrants exercisable price on offering price |
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110.00%
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May 2020 Common Warrant [Member] | Minimum [Member] |
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Warrants term |
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6 months
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May 2020 Common Warrant [Member] | Maximum |
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Warrants term |
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5 years
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June 2018 Notes Warrants [Member] |
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Warrants Outstanding |
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6,276
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October 2020 Common Warrants |
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Price per share | $ / shares |
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$ 3.300
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Warrants Outstanding |
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200,000
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2,300,000
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Percentage on aggregate number of shares of common stock |
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5.00%
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Percentage of warrants exercisable price on offering price |
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110.00%
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October 2020 Common Warrants | Minimum [Member] |
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Warrants term |
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5 years
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May 2021 Underwriter Warrants |
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Warrants Outstanding |
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247,423
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May 2021 Common Warrants |
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Price per share | $ / shares |
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$ 2.425
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Placement agent fees and costs | $ |
$ 940,000
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Warrants Outstanding |
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4,948,453
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Shares issued upon exercise of warrants |
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2,320,000
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Common stock shares issued |
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4,948,453
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May 2021 Common Warrants | securities purchase agreement |
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Price per share | $ / shares |
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$ 2.425
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Shares of common stock issued |
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2,320,000
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May 2021 Prefunded Warrants |
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Exercise price of warrants | $ / shares |
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$ 0.0001
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May 2021 Prefunded Warrants | securities purchase agreement |
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Price per share | $ / shares |
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$ 2.4249
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Shares of common stock issued |
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2,628,453
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Amanda Murphy |
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Common stock issued for services rendered, shares |
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856
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Common stock issued for services | $ |
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$ 75,000
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September 2016 grant | Maximum |
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Share options, cancelled during the year |
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11,790,000
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Convertible Notes Payable [Member] |
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Stock Issued During Period, Shares, Conversion of Convertible Securities |
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628,353
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Preferred Stock |
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Shares conversion ratio |
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1
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Preferred options Exercised |
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12,794,220
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Preferred Stock | May 2020 Common Warrant [Member] |
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Price per share | $ / shares |
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$ 2.52
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Preferred Stock | Scott W Absher |
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Shares conversion ratio |
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1
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Preferred stock, per share | $ / shares |
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$ 0.0001
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$ 0.0001
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Preferred options Exercised |
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12,500,000
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294,490
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Number of options available for grant to founder shareholders |
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12,500,000
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Share options additional grants during the period |
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12,500,000
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Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term |
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24 months
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Percentage of sale or distribution of company assets or earning power. |
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50
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Preferred Stock | Scott W Absher | Maximum |
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Granted |
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25,000,000
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Preferred Stock | September 2016 grant | Vensure asset sale |
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Preferred stock options, unexercised |
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11,827,570
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Stock Option | Preferred Stock |
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Convertible preferred stock |
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24,634,560
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Common Share Units [Member] | May 2020 Common Warrant [Member] |
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Units issued |
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166,500
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Number of Shares of Common Stock to be Purchased Accompanied by Common Warrant |
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0.5
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Common Share Units [Member] | October 2020 Common Warrants |
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Price per share | $ / shares |
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$ 3.00
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Shares of common stock issued |
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4,000,000
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Common Share Units [Member] | Scott W Absher |
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Price per share | $ / shares |
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$ 1,250
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Shares issued upon conversion |
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12,500,000
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294,490
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Common shares lock up period |
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24 months
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6 months
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Shares that are freely tradeable |
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294,490
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Warrants [Member] |
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Warrants to acquire shares of common stock |
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323,310
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Warrants Outstanding |
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9,592,085
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Warrants [Member] | May 2021 Common Warrants |
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Price per share | $ / shares |
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$ 2.4249
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Shares issued upon exercise of warrants |
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2,628,453
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Warrants [Member] | May 2021 Prefunded Warrants |
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Price per share | $ / shares |
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$ 2.425
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Exercise price of warrants | $ / shares |
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$ 2.6675
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Shares issued upon exercise of warrants |
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2,628,453
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Common Stock | May 2021 Common Warrants |
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Price per share | $ / shares |
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$ 0.0001
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|
|
|
|
|
|
Shares of common stock issued |
|
|
2,320,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Common Stock | May 2021 Prefunded Warrants |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Price per share | $ / shares |
|
|
$ 2.4249
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Underwritten Public Offering [Member] | May 2020 Common Warrant [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Shares of common stock issued |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2,472,500
|
|
|
|
Warrants to acquire shares of common stock |
|
|
|
|
|
|
|
|
|
|
|
1,277,580
|
|
|
|
|
|
|
|
|
Placement agent fees and costs | $ |
|
|
|
|
|
|
|
|
|
$ 1,700,000
|
|
|
|
|
|
|
|
|
|
|
Underwritten Public Offering [Member] | October 2020 Common Warrants |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Price per share | $ / shares |
|
|
|
|
$ 3.00
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Exercise price of warrants | $ / shares |
|
|
|
|
$ 3.30
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Gross proceeds from issuance of shares | $ |
|
|
|
|
$ 12,000,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Placement agent fees and costs | $ |
|
|
|
$ 1,300,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Underwritten Public Offering [Member] | Common Share Units [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Gross proceeds from issuance of shares | $ |
|
|
|
|
|
|
|
|
|
$ 12,000,000
|
|
|
|
|
|
|
|
|
|
|
Underwritten Public Offering [Member] | Common Share Units [Member] | May 2020 Common Warrant [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Price per share | $ / shares |
|
|
|
|
|
|
|
|
|
|
|
$ 5.40
|
|
|
|
|
|
|
|
|
Shares of common stock issued |
|
|
|
|
|
|
|
|
|
|
|
1,898,850
|
|
|
|
|
|
|
|
|
Exercise price of warrants | $ / shares |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 5.40
|
$ 5.40
|
|
|
|
Underwritten Public Offering [Member] | Warrants [Member] | May 2020 Common Warrant [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Price per share | $ / shares |
|
|
|
|
|
|
|
|
|
|
|
$ 5.399
|
|
|
|
|
|
|
|
|
Shares of common stock issued |
|
|
|
|
|
|
|
|
|
|
|
323,310
|
|
|
|
|
|
|
|
|
Underwritten Public Offering [Member] | Warrants [Member] | October 2020 Common Warrants |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Shares of common stock issued |
|
|
|
|
2,300,000
|
|
|
|
|
|
|
|
|
|
|
2,300,000
|
|
|
|
|
Underwritten Public Offering [Member] | Common Stock | October 2020 Common Warrants |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Shares of common stock issued |
|
|
|
|
4,000,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Number of Shares of Common Stock to be Purchased Accompanied by Common Warrant |
|
|
|
|
0.5
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Overallotment | May 2020 Common Warrant [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Price per share | $ / shares |
|
|
|
|
|
|
|
$ 5.40
|
|
|
|
|
|
|
|
|
|
|
|
|
Shares of common stock issued |
|
|
|
|
|
|
|
166,500
|
|
|
|
|
|
|
|
|
|
|
|
|
Units issued |
|
|
|
|
|
83,840
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Gross proceeds from issuance of shares | $ |
|
|
|
|
|
$ 450,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Proceeds from issuance of units | $ |
|
|
|
|
|
|
|
$ 900,000
|
|
|
|
|
|
|
|
|
|
|
|
|
Overallotment | October 2020 Common Warrants |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Shares of common stock issued |
|
|
|
|
300,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Overallotment | Common Share Units [Member] | May 2020 Common Warrant [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Price per share | $ / shares |
|
|
|
|
|
$ 5.40
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|