Consolidated Statement of Changes in Stockholders' Equity - USD ($) $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment [Member]	Preferred Stock	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Treasury Stock	Accumulated Other Comprehensive Loss
Equity - Beginning Balance at Mar. 31, 2019	$ 47,136		$ 45,118	$ 61	$ 55,514	$ (52,201)	$ (417)	$ (939)
Net loss	(1,139)		0	0	0		0	0
Other comprehensive loss, net of taxes	879		0	0	0	0	0	879
Stock based compensation expense	1		0	0	1	0	0	0
Equity - Ending Balance at Jun. 30, 2019	52,216	$ 5,339	45,118	61	55,515	(48,001)	(417)	(60)
Equity - Beginning Balance at Mar. 31, 2020	48,894		45,118	61	55,476	(52,285)	(408)	932
Net loss	(812)		0	0	0		0	0
Other comprehensive loss, net of taxes	(1,074)		0	0	0	0	0	(1,074)
Stock Issued During Period, Value, Conversion of Convertible Securities	0		(597)	1	596	0	0	0
Stock based compensation expense	33		0	(24)	57	0	0	0
Equity - Ending Balance at Jun. 30, 2020	$ 47,041		$ 44,521	$ 38	$ 56,129	$ (53,097)	$ (408)	$ (142)