SEGMENT INFORMATION - Financial information for segments (Details) $ in Thousands	3 Months Ended
	Jun. 30, 2026 USD ($) segment	Jun. 30, 2025 USD ($)	Mar. 31, 2026 USD ($)
SEGMENT INFORMATION
Number of reportable segment | segment	2
Revenue, net	$ 9,096	$ 7,379
Cost of revenue	7,696	6,349
Selling, general and administrative	1,445	1,493
Loss from operations	(45)	(463)
Other income (expense), net	(2)	1
Interest expense	(106)	(135)
Loss before income taxes	(153)	(597)
Depreciation and amortization	698	701
Capital expenditures	2,436	1,250
Total assets	31,239	32,142	$ 32,272
Operating segments
SEGMENT INFORMATION
Revenue, net	9,525	7,629
Cost of revenue	7,696	6,349
Selling, general and administrative	1,320	1,387
Loss from operations	80	(357)
Intersegment elimination
SEGMENT INFORMATION
Revenue, net	(429)	(250)
Corporate and unallocated
SEGMENT INFORMATION
Corporate general costs	(125)	(106)
Ranor
SEGMENT INFORMATION
Revenue, net	5,461	4,242
Depreciation and amortization	260	259
Capital expenditures	2,436	1,250
Total assets	11,410	10,744
Ranor | Operating segments
SEGMENT INFORMATION
Revenue, net	5,461	4,297
Cost of revenue	3,901	2,749
Selling, general and administrative	644	652
Loss from operations	916	841
Ranor | Intersegment elimination
SEGMENT INFORMATION
Revenue, net		(55)
Stadco
SEGMENT INFORMATION
Revenue, net	3,635	3,137
Depreciation and amortization	438	442
Total assets	19,829	21,398
Stadco | Operating segments
SEGMENT INFORMATION
Revenue, net	4,064	3,332
Cost of revenue	3,795	3,600
Selling, general and administrative	676	735
Loss from operations	(836)	(1,198)
Stadco | Intersegment elimination
SEGMENT INFORMATION
Revenue, net	$ (429)	$ (195)