ACCRUED LIABILITIES (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
ACCRUED LIABILITIES
Compensation and fringe benefits	$ 15,396	$ 15,818
Accrued business acquisition consideration	12,657	12,500
Warranty reserve	2,284	2,160
Income taxes payable	1,454	3,934
Operating lease liabilities - current	$ 5,100	$ 4,224
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Accrued liabilities	Accrued liabilities
Finance lease obligations, current	$ 403	$ 377
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Accrued liabilities	Accrued liabilities
Contract liabilities	$ 2,701	$ 4,807
Contingent consideration	4,960
Other accrued expenses	7,282	4,301
Accrued liabilities	$ 52,237	$ 48,121