Unaudited Condensed Consolidated Statements of Operations and Other Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Revenues
Total Revenues	$ 77	$ 0	$ 77	$ 0
Revenue From Contract With Customer Product And Service [Extensible List]	us-gaap:RoyaltyMember	us-gaap:RoyaltyMember	us-gaap:RoyaltyMember	us-gaap:RoyaltyMember
Research and development expenses	$ 1,231	$ 679	$ 2,251	$ 1,259
Selling, general and administrative expenses	2,200	2,828	4,419	4,807
Total costs and expenses	3,431	3,507	6,670	6,066
Loss from Operations	(3,354)	(3,507)	(6,593)	(6,066)
Other Income (Expense)
Loss on investment in equity securities	(70)	0	(75)	0
Interest income	103	2	134	4
Other income	0	0	0	25
Total Other Income	33	2	59	29
Income Tax Expense	0	0	(2)	0
Net Loss	$ (3,321)	$ (3,505)	$ (6,536)	$ (6,037)
Net loss per common share basic	$ (0.38)	$ (0.40)	$ (0.75)	$ (0.69)
Net loss per common share diluted	$ (0.38)	$ (0.40)	$ (0.75)	$ (0.69)
Weighted average shares used in computing net loss per common share basic	8,712,284	8,705,327	8,711,630	8,701,029
Weighted average shares used in computing net loss per common share diluted	8,712,284	8,705,327	8,711,630	8,701,029
Comprehensive Loss:
Net loss	$ (3,321)	$ (3,505)	$ (6,536)	$ (6,037)
Comprehensive loss	$ (3,321)	$ (3,505)	$ (6,536)	$ (6,037)