SECURITIES: (Details Textual) - USD ($)	2 Months Ended	12 Months Ended
	Mar. 04, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Debt Securities, Available-for-sale [Line Items]
Securities pledged as collateral		$ 814,700,000	$ 744,500,000
Gain on sale of investments		274,000	290,000	$ 55,000
Loss on sale of investments		160,000	57,000	11,000
Cumulative OTTI charges		2,974,000	2,974,000	2,974,000	$ 2,974,000
Proceeds from Maturities, Prepayments and Calls of Debt Securities, Available-for-sale	$ 3,100,000	$ 262,209,000	$ 260,631,000	$ 181,763,000
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions		221
Other Than Temporarily Impaired Cdo [Member]
Debt Securities, Available-for-sale [Line Items]
Contractual balance		$ 3,700,000
Reduced balance		3,400,000
Interest payment received		750,000
Cumulative OTTI charges		3,000,000
Other comprehensive income net		$ 3,400,000