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LEASES - Summary of Related to Leases (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Leases [Abstract]      
Finance lease ROU asset (included within Lease right-of-use assets) $ 1,251 $ 2,041  
Operating lease ROU asset (included within Lease right-of-use assets) $ 951 $ 1,692  
Weighted-average remaining lease term (in years):      
Finance leases 1 year 6 months 29 days 2 years 6 months 29 days  
Operating leases 1 year 4 months 24 days 2 years 3 months 21 days  
Weighted-average discount rate:      
Finance leases 2.50% 2.50%  
Operating leases 5.30% 5.30%  
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Lease right-of-use assets Lease right-of-use assets  
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Lease right-of-use assets Lease right-of-use assets Lease right-of-use assets