STOCK OPTIONS AND RESTRICTED SHARES (Stock-based Compensation) (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2021
Stock-based compensation
Total	$ 1,612	$ 813	$ 753
Cost of product revenue
Stock-based compensation
Total	4	5	4
General and administrative
Stock-based compensation
Total	1,596	793	716
Sales and marketing
Stock-based compensation
Total	8	12	29
Research and development
Stock-based compensation
Total	$ 4	$ 3	$ 4