ACCRUED LIABILITIES (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
ACCRUED LIABILITIES
Compensation and fringe benefits	$ 14,329	$ 14,666
Accrued business acquisition consideration	12,522	12,388
Warranty reserve	2,086	1,869
Operating lease liabilities - current	$ 4,389	$ 4,532
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Accrued liabilities	Accrued liabilities
Finance Lease, Liability, Current	$ 263
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Accrued liabilities	Accrued liabilities
Deferred revenue	$ 5,309	$ 2,425
Other accrued expenses	7,237	5,776
Accrued liabilities	$ 46,135	$ 41,656