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PROPERTY, PLANT AND EQUIPMENT, NET (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Mar. 31, 2025
PROPERTY, PLANT AND EQUIPMENT, NET
Total property, plant and equipment	$ 29,480		$ 29,480		$ 30,156
Less: accumulated depreciation	(17,389)		(17,389)		(16,365)
Total property, plant and equipment, net	12,091		12,091		13,791
Depreciation expense	518	$ 520	1,037	$ 1,040
Land
PROPERTY, PLANT AND EQUIPMENT, NET
Total property, plant and equipment	110		110		110
Building and improvements
PROPERTY, PLANT AND EQUIPMENT, NET
Total property, plant and equipment	3,294		3,294		3,294
Machinery equipment, furniture, and fixtures
PROPERTY, PLANT AND EQUIPMENT, NET
Total property, plant and equipment	25,929		25,929		26,605
Construction-in-progress
PROPERTY, PLANT AND EQUIPMENT, NET
Total property, plant and equipment	$ 147		$ 147		$ 147

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- Definition

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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