LEASES - Supplemental balance sheet information related to leases (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
LEASES
Operating lease right-of-use assets	$ 7,473	$ 6,780
Current operating lease liability	$ 2,589	$ 2,399
Current operating lease liabilities, Statement of Financial Position	Accrued expenses and other current liabilities	Accrued expenses and other current liabilities
Non-current operating lease liabilities	$ 5,287	$ 4,857
Total operating lease liabilities	7,876	7,256
Finance lease right-of-use assets	$ 188	$ 110
Finance lease right-of-use assets, statement of financial position	Fixed assets	Fixed assets
Current finance lease liabilities	$ 120	$ 381
Current finance lease liabilities, Statement of Financial Position	Accrued expenses and other current liabilities	Accrued expenses and other current liabilities
Non-current finance lease liabilities	$ 64	$ 46
Non-current finance lease liabilities, statement of financial position	Other liabilities	Other liabilities
Total finance lease liabilities	$ 184	$ 427
Weighted average remaining lease term (in years) - Operating leases	4 years 8 months 12 days	3 years 9 months 18 days
Weighted average remaining lease term (in years) - Finance leases	2 years 1 month 6 days	2 years
Weighted average discount rate (as a percentage) - Operating leases	9.40%	7.90%
Weighted average discount rate (as a percentage) - Finance leases	10.40%	5.40%