SEGMENT INFORMATION - Financial information for segments (Details)	12 Months Ended
	Mar. 31, 2022 USD ($) item	Mar. 31, 2021 USD ($)
SEGMENT INFORMATION
Number of reportable segment | item	2
Net sales from external customers	$ 22,282,495	$ 15,595,558
Total operating (loss) income	(1,561,529)	623,248
Interest expense and other expense	(297,761)	(197,737)
Unallocated PPP loan forgiveness	1,317,100
Consolidated (loss) income before income taxes	(542,189)	425,511
Assets	37,852,559	16,004,019
Depreciation and amortization	1,460,439	704,049
Capital expenditures	939,004	546,890
Eliminate intersegment revenue
SEGMENT INFORMATION
Net sales from external customers	(53,757)
Corporate and unallocated
SEGMENT INFORMATION
Total operating (loss) income	(1,398,379)	(955,059)
Assets	2,290,324	2,434,111
Ranor, Inc.
SEGMENT INFORMATION
Net sales from external customers	14,580,306	15,595,558
Total operating (loss) income	961,392	1,578,307
Assets	10,654,579	13,569,908
Depreciation and amortization	595,536	704,049
Capital expenditures	825,608	$ 546,890
Stadco
SEGMENT INFORMATION
Net sales from external customers	7,755,946
Total operating (loss) income	(1,124,542)
Assets	24,907,656
Depreciation and amortization	864,903
Capital expenditures	$ 113,396