REVENUE FROM CONTRACTS WITH CUSTOMERS (Schedule of non-interest income) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Jan. 31, 2019
Total non-interest income	$ 13,669,000	$ 10,565,000
Retained Earnings (Accumulated Deficit)	120,830,000	81,364,000
ASU 2014-09 | Restatement Adjustment
Retained Earnings (Accumulated Deficit)		117,000	$ 117,000
Service charges on deposit accounts
Non-interest income	3,728,000	3,556,000
Prepaid third-party debit card incomes
Non-interest income	8,464,000	5,643,000
Other service charges and fees
Non-interest income	$ 1,477,000	$ 1,366,000