COMMITMENTS & CONTINGENCIES (Right of Use Assets, Net of Accumulated Amortization) (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Operating Leases
Operating lease right of use asset, net	$ 6,215	$ 7,831
Operating lease liability	$ 6,418	$ 8,088
Weighted average remaining lease term	17 years 2 months 4 days	18 years 2 months 15 days
Weighted average discount rate	3.51%	3.52%
Minimum
Operating Leases
Remaining lease term (in years)	6 years	8 months 12 days
Maximum
Operating Leases
Remaining lease term (in years)	23 years	24 years