PROPERTY, PLANT AND EQUIPMENT, NET (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Mar. 31, 2026
PROPERTY, PLANT AND EQUIPMENT, NET
Total property, plant and equipment	$ 29,267		$ 29,274
Less: accumulated depreciation	(18,885)		(18,400)
Total property, plant and equipment, net	10,382		10,874
Depreciation expense	506	$ 519
Disposal of PPE	2
Land
PROPERTY, PLANT AND EQUIPMENT, NET
Total property, plant and equipment	110		110
Building and improvements
PROPERTY, PLANT AND EQUIPMENT, NET
Total property, plant and equipment	3,294		3,294
Machinery equipment, furniture, and fixtures
PROPERTY, PLANT AND EQUIPMENT, NET
Total property, plant and equipment	25,716		25,723
Construction-in-progress
PROPERTY, PLANT AND EQUIPMENT, NET
Total property, plant and equipment	$ 147		$ 147