Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Statement of Comprehensive Income [Abstract]
Net loss	$ (5,423)	$ (5,936)
Other comprehensive income, net of tax:
Change in unrealized loss of securities available-for-sale, net of tax	1,871	1,050
Reclassification adjustments for sales of available-for-sale securities, net of tax	0	(16)
Other comprehensive income, net of tax	1,871	1,066
Comprehensive loss	(3,552)	(4,870)
Other Comprehensive Income (Loss), Change in unrealized loss of available-for-sale securities, Tax	0	0
Other Comprehensive Income (Loss), Reclassification adjustment for sales of available-for-sale securities, Tax	$ 0	$ 0