CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Statement of Comprehensive Loss [Abstract]
Net loss	$ (3,228)	$ (4,567)	$ (7,204)	$ (8,776)
Net unrealized gain (loss) on available-for-sale investments	2	(16)	(25)	(31)
Total comprehensive loss	$ (3,226)	$ (4,583)	$ (7,229)	$ (8,807)