STOCK OPTIONS AND RESTRICTED SHARES (Stock-based Compensation) (Details) - USD ($) $ in Thousands	3 Months Ended
Jun. 30, 2023	Jun. 30, 2022
Stock-based compensation
Total	$ 188	$ 254
Cost of product revenue
Stock-based compensation
Total	1	1
General and administrative
Stock-based compensation
Total	182	250
Sales and marketing
Stock-based compensation
Total	4	2
Research and development
Stock-based compensation
Total	$ 1	$ 1

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 14.F)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479830/718-10-S99-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (h)(1)(i)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

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Balance Type:	debit
Period Type:	duration