Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Income Statement [Abstract]
Revenues	$ 3,331	$ 3,744	$ 7,314	$ 7,428
Cost of revenues	1,995	2,503	4,532	4,734
Gross profit	1,336	1,241	2,782	2,694
Operating expenses
Research and development	0	10	6	95
Selling, general and administrative	2,067	2,195	4,362	4,468
Total operating expenses	2,067	2,205	4,368	4,563
Loss from operations	(731)	(964)	(1,586)	(1,869)
Interest income (expense), net	3	(4)	3	(5)
Other income (expense), net	(189)	723	(256)	531
Gain on sale of assets	0	150	0	150
Loss before income taxes	(917)	(95)	(1,839)	(1,193)
Income tax benefit (expense)	(100)	(5)	(65)	(5)
Net loss	$ (1,017)	$ (100)	$ (1,904)	$ (1,198)
Net loss per share: basic	$ (0.33)	$ (0.04)	$ (0.61)	$ (0.54)
Net loss per share: diluted	$ (0.33)	$ (0.04)	$ (0.61)	$ (0.54)
Weighted-average number of shares: basic	3,101	2,344	3,101	2,219
Weighted-average number of shares: diluted	3,101	2,344	3,101	2,219
Other comprehensive loss
Net loss	$ (1,017)	$ (100)	$ (1,904)	$ (1,198)
Foreign currency translation adjustments	(34)	(234)	(99)	73
Comprehensive loss	$ (1,051)	$ (334)	$ (2,003)	$ (1,125)