SEGMENT INFORMATION - Financial information for segments (Details) $ in Thousands	3 Months Ended
	Jun. 30, 2025 USD ($) item	Jun. 30, 2024 USD ($)
SEGMENT INFORMATION
Number of reportable segment | item	2
Revenue, net	$ 7,379	$ 7,986
Cost of revenue	6,349	7,747
Selling, general and administrative	1,493	1,580
Loss from operations	(463)	(1,341)
Other income (expense), net	1	13
Interest expense	(135)	(132)
Consolidated loss before income taxes	(597)	(1,460)
Depreciation and amortization	701	694
Capital expenditures	1,250	201
Operating segments
SEGMENT INFORMATION
Revenue, net	7,629	7,986
Cost of revenue	6,349	7,747
Selling, general and administrative	1,387	1,124
Loss from operations	(357)	(885)
Eliminate intersegment revenue
SEGMENT INFORMATION
Revenue, net	(250)
Corporate and unallocated
SEGMENT INFORMATION
Corporate general costs	(106)	(37)
Costs related to terminated acquisition		(419)
Ranor
SEGMENT INFORMATION
Revenue, net	4,242	4,382
Depreciation and amortization	259	261
Capital expenditures	1,250	201
Ranor | Operating segments
SEGMENT INFORMATION
Revenue, net	4,297	4,382
Cost of revenue	2,749	3,145
Selling, general and administrative	652	453
Loss from operations	841	784
Ranor | Eliminate intersegment revenue
SEGMENT INFORMATION
Revenue, net	(55)
Stadco
SEGMENT INFORMATION
Revenue, net	3,137	3,604
Depreciation and amortization	442	433
Stadco | Operating segments
SEGMENT INFORMATION
Revenue, net	3,332	3,604
Cost of revenue	3,600	4,602
Selling, general and administrative	735	671
Loss from operations	(1,198)	$ (1,669)
Stadco | Eliminate intersegment revenue
SEGMENT INFORMATION
Revenue, net	$ (195)