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REVENUE - Net sales from customers (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
REVENUE
Revenue	$ 7,379	$ 7,986
Customer A | Customer concentration risk | Sales revenue, net
REVENUE
Revenue	$ 1,126	$ 1,762
Concentration risk percentage	15.00%	22.00%
Customer B | Customer concentration risk | Sales revenue, net
REVENUE
Revenue		$ 992
Concentration risk percentage		13.00%
Customer C | Customer concentration risk | Sales revenue, net
REVENUE
Revenue	$ 1,845	$ 1,075
Concentration risk percentage	25.00%	14.00%
Customer E | Customer concentration risk | Sales revenue, net
REVENUE
Revenue	$ 1,590	$ 1,844
Concentration risk percentage	21.00%	23.00%
Customer F | Customer concentration risk | Sales revenue, net
REVENUE
Revenue	$ 711	$ 879
Concentration risk percentage	10.00%	11.00%
Ranor | Customer concentration risk | Sales revenue, net
REVENUE
Revenue	$ 3,202	$ 3,888
Concentration risk percentage	43.00%	45.00%
Stadco | Customer concentration risk | Sales revenue, net
REVENUE
Revenue	$ 2,070	$ 2,664
Concentration risk percentage	28.00%	26.00%

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- Definition

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