Consolidated Statement of Changes in Stockholders' Equity - USD ($) $ in Thousands	Total	Preferred Stock	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Treasury Stock	Accumulated Other Comprehensive Loss
Equity - Beginning Balance at Mar. 31, 2018	$ 51,971	$ 45,118	$ 61	$ 55,479	$ (45,544)	$ (417)	$ (2,726)
Net loss	(4,396)	0	0	0		0	0
Other comprehensive loss, net of taxes	286	0	0	0	0	0
Stock based compensation expense	34	0	0	34	0	0	0
Equity - Ending Balance at Dec. 31, 2018	47,895	45,118	61	55,513	(50,661)	(417)	(1,719)
Equity - Beginning Balance at Sep. 30, 2018	48,270	45,118	61	55,511	(49,312)	(417)	(2,691)
Net loss	(1,349)	0	0	0		0	0
Other comprehensive loss, net of taxes	972	0	0	0	0	0	972
Stock based compensation expense	2	0	0	2	0	0	0
Equity - Ending Balance at Dec. 31, 2018	47,895	45,118	61	55,513	(50,661)	(417)	(1,719)
Cumulative Effect of New Accounting Principle | Accounting Standards Update 2016-01	0	0	0	0	(721)	0	721
Equity - Beginning Balance at Mar. 31, 2019	47,136	45,118	61	55,514	(52,201)	(417)	(939)
Net loss	(3,625)	0	0	0		0	0
Other comprehensive loss, net of taxes	923	0	0	0	0	0	923
Stock based compensation expense	6	0	0	6	0	0	0
Equity - Ending Balance at Dec. 31, 2019	49,779	45,118	61	55,520	(50,487)	(417)	(16)
Equity - Beginning Balance at Sep. 30, 2019	51,309	45,118	61	55,516	(49,051)	(417)	82
Net loss	(1,436)	0	0	0		0	0
Other comprehensive loss, net of taxes	(98)	0	0	0	0	0	(98)
Stock based compensation expense	4	0	0	4	0	0	0
Equity - Ending Balance at Dec. 31, 2019	49,779	45,118	61	55,520	(50,487)	(417)	(16)
Cumulative Effect of New Accounting Principle	5,300
Cumulative Effect of New Accounting Principle | Accounting Standards Update 2016-02	$ 5,339	$ 0	$ 0	$ 0	$ 5,339	$ 0	$ 0