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Equity - Equity Incentive Plan (Details) - USD ($)		3 Months Ended		9 Months Ended		12 Months Ended
	Jan. 22, 2021	Mar. 31, 2021	Mar. 31, 2020	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2020
Share-based compensation
Warrants Intrinsic Value Outstanding				$ 11,800,000
Stock grants	62,500
Exercise price (in dollars per share)	$ 3.97
Non-vested stock options
Share-based compensation
Allocated Share-based Compensation Expense				$ 13,000	$ 13,000
Contractual life		10 years
Fair value of options granted (in dollars)		$ 176,000
Minimum [Member] | Non-vested stock options
Share-based compensation
Exercise price (in dollars per share)		$ 1.16
Equity Incentive Plan [Member]
Share-based compensation
Number of common stock reserved for issuance		3,630,994
Reserved but unissued shares under the Consultant Plan at Period End		885,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Number		2,780,735				2,379,752
Allocated Share-based Compensation Expense		$ 410,000				$ 126,000
Contractual life		10 years
Equity Incentive Plan [Member] | Non-vested stock options
Share-based compensation
Share-based Compensation Outstanding - Reserved but unissued shares under the Plan		3,630,994				2,697,119
Equity Incentive Plan [Member] | Board of Directors [Member]
Share-based compensation
Stock grants		210,000	53,000
Equity Incentive Plan [Member] | 2021 Employee Awards
Share-based compensation
Allocated Share-based Compensation Expense						$ 192,000
Fair value of options granted (in dollars)		$ 1,900,000
Stock options issued in lieu of bonus in cash						80,000
Number of options awarded with performance condition		805,000
Equity Incentive Plan [Member] | 2021 Director Awards
Share-based compensation
Allocated Share-based Compensation Expense		$ 217,000
Exercise price (in dollars per share)		$ 3.37
Stock options issued in lieu of bonus in cash		64,439
Equity Incentive Plan [Member] | Performance Incentive Awards, Probable [Member]
Share-based compensation
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized		$ 234,000
Equity Incentive Plan [Member] | Performance Incentive Awards, Not Probable [Member]
Share-based compensation
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized		$ 1,400,000
Unrecognized compensation expense period for recognition		1 year

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Number of options awarded in lieu of bonus in cash.

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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