LEASES (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
LEASES
Options to terminate the leases	true
Operating lease option to terminate Period	30 days
Fixed operating lease expense	$ 5,105	$ 4,548
Variable operating lease expense	707	547
Short-term lease expense	237	234
Future minimum lease payments of lease not yet commenced	13,700
Supplemental cash flow information related to the operating leases
Cash paid for amounts included in the measurement of operating leases	5,321	4,601
Right of use ("ROU") assets obtained in exchange for operating lease obligations	2,482	3,626
ROU assets obtained in acquisitions (Note 2)	$ 1,005	$ 2,735
Lease assets and liabilities
Right of use liabilities, current, Classification	Accrued liabilities	Accrued liabilities
Weighted average remaining lease term	6 years 4 months 28 days	6 years 9 months 29 days
Weighted average discount rate	2.28%	2.25%
Maturity of the operating lease liabilities
2022	$ 4,846
2023	3,537
2024	2,690
2025	2,149
2026	1,123
Thereafter	4,178
Total undiscounted cash flows	18,523
Less: present value discount	(1,199)
Total lease liabilities	$ 17,324