STOCK-BASED COMPENSATION PLAN - Schedule of Stock Based Compensation Cost (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total Cost	$ 1,440	$ 1,522	$ 4,365	$ 4,570
Capitalized	(33)	(12)	(101)	(35)
Net Expense	1,407	1,510	4,264	4,535
Officers & Key Employees
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total Cost	1,123	1,220	3,804	3,671
Directors
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total Cost	$ 317	$ 302	$ 561	$ 899

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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