SECURITIES (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Debt Securities, Trading	$ 3,720	$ 2,838
Equity Securities, FV-NI	23,173	22,107
Investments in obligations of individual states, counties or municipalities which exceed 10% of equity	0	0
Debt Securities, Available-for-sale	1,571,148	412,860
Interest Receivable	43,700	36,000
Debt Securities, Available-for-sale, Past due	0	0
Debt Securities, Held-to-maturity, 90 Days or More Past Due, Still Accruing	0	0
Debt Securities, Held-to-maturity, Sold, Realized Gain (Loss)	0	0
Debt Securities, Held-to-Maturity, Accrued Interest, Writeoff	0	0
Debt Securities, Available-for-Sale, Accrued Interest Writeoff	0	0
Debt Securities, Available-for-sale, Allowance for Credit Loss, Period Increase (Decrease)	0	0
Debt Securities, Held-to-maturity, Allowance for Credit Loss, Period Increase (Decrease)	0	0
Callable securities in investment portfolio	3,200
Investment securities pledged	740,600	419,600
Debt Securities, Available-for-sale, Allowance for Credit Loss, Period Increase (Decrease)	0	0
Debt Securities, Available-for-Sale, Accrued Interest Writeoff	0	0
Debt Securities, Available-for-sale, Realized Gain (Loss)	0	0
Debt Securities, Held-to-maturity, Allowance for Credit Loss, Period Increase (Decrease)	0	0
Debt Securities, Held-to-Maturity, Accrued Interest, Writeoff	0	0
Debt Securities, Held-to-maturity, Sold, Realized Gain (Loss)	0	0
Held-to-maturity Securities [Member]
Interest Receivable	2,000	1,500
Available-for-sale Securities [Member]
Interest Receivable	$ 3,000	$ 1,200