DEPOSITS AND RELATED INTEREST (Maturities of Time Deposits) (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Period-end amount, within one year:
Three months or less	$ 242,135	$ 252,513
Over 3 months through 6 months	110,671	147,400
Over 6 months through 1 year	310,192	239,830
Within one year	662,998	639,743
Period-end amount, after one year:
Over 1 through 2 years	239,730	328,177
Over 2 through 3 years	111,306	114,403
Over 3 through 4 years	79,182	77,604
Over 4 through 5 years	41,822	58,918
Over 5 years	1,029	1,417
Certificates of deposit	1,136,067	1,220,262
Uninsured amount, within one year:
Three months or less	34,571	25,003
Over 3 months through 6 months	19,968	12,113
Over 6 months through 1 year	47,591	45,280
Within one year	102,130	82,396
Uninsured amount, after one year:
Over 1 through 2 years	36,483	60,108
Over 2 through 3 years	16,166	18,578
Over 3 through 4 years	23,596	22,536
Over 4 through 5 years	3,149	8,505
Over 5 years	0	0
Uninsured amount	$ 181,524	$ 192,123