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, Common	Accumulated Other Comprehensive Loss
Equity - Beginning Balance at Mar. 31, 2022	$ 55,087		$ 25,928	$ 67	$ 82,165	$ (43,503)	$ (2,908)	$ (6,662)
Net loss	(1,812)
Other comprehensive loss, net of taxes	(7,058)
Stock Issued During Period, Value, Conversion of Convertible Securities	0		(550)	(1)	(549)
Stock based compensation expense	20				20
Equity - Ending Balance at Sep. 30, 2022	46,237		25,378	68	82,734	(45,315)	(2,908)	(13,720)
Equity - Beginning Balance at Jun. 30, 2022	50,636		25,378	68	82,734	(44,360)	(2,908)	(10,276)
Net loss	(955)
Other comprehensive loss, net of taxes	(3,444)							(3,444)
Equity - Ending Balance at Sep. 30, 2022	46,237		25,378	68	82,734	(45,315)	(2,908)	(13,720)
Accumulated deficit	(47,904)
Equity - Beginning Balance at Mar. 31, 2023	45,224		25,378	68	82,805	(47,904)	(2,908)	(12,215)
Net loss	(3,007)
Other comprehensive loss, net of taxes	(3,099)							(3,099)
Stock Issued During Period, Value, Conversion of Convertible Securities	0		(2,200)	(3)	(2,197)
Stock Issued During Period, Value, New Issues	1,000			4	996
Stock based compensation expense	219				219
Equity - Ending Balance at Sep. 30, 2023	39,669		23,178	75	86,217	(51,579)	(2,908)	(15,314)
Equity - Beginning Balance at Jun. 30, 2023	42,517		23,728	70	84,628	(49,993)	(2,908)	(13,008)
Net loss	(1,586)
Other comprehensive loss, net of taxes	(2,306)							(2,306)
Stock Issued During Period, Value, Conversion of Convertible Securities	0		(550)	(1)	(549)
Stock Issued During Period, Value, New Issues	1,000			4	996
Stock based compensation expense	44				44
Equity - Ending Balance at Sep. 30, 2023	39,669		$ 23,178	$ 75	$ 86,217	$ (51,579)	$ (2,908)	$ (15,314)
Accumulated deficit	$ (51,579)	$ (668)