ACCRUED LIABILITIES (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
ACCRUED LIABILITIES
Compensation and fringe benefits	$ 13,292	$ 15,818
Accrued business acquisition consideration	12,444	12,500
Warranty reserve	2,225	2,160
Income taxes payable	1,710	3,934
Operating lease liabilities - current	$ 4,575	$ 4,224
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Accrued liabilities	Accrued liabilities
Finance lease obligations, current	$ 394	$ 377
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Accrued liabilities	Accrued liabilities
Contract liabilities	$ 3,620	$ 4,807
Other accrued expenses	7,129	4,301
Accrued liabilities	$ 45,389	$ 48,121