BUSINESS SEGMENT INFORMATION (Details) $ in Thousands	3 Months Ended
	Dec. 31, 2022 USD ($) segment	Dec. 31, 2021 USD ($)
BUSINESS SEGMENT INFORMATION
Net sales	$ 205,501	$ 177,010
EBIT	20,557	15,570
Less: Interest expense	(1,658)	(733)
Earnings before income taxes	$ 18,899	14,837
Number of reportable segments | segment	3
Aerospace & Defense
BUSINESS SEGMENT INFORMATION
Net sales	$ 82,983	70,244
EBIT	12,536	9,955
USG
BUSINESS SEGMENT INFORMATION
Net sales	71,045	63,485
EBIT	16,131	13,391
Test
BUSINESS SEGMENT INFORMATION
Net sales	51,473	43,281
EBIT	5,411	3,965
Corporate (loss)
BUSINESS SEGMENT INFORMATION
EBIT	$ (13,521)	$ (11,741)