Allowance for Loan Losses - Change in Allowance for Loan Losses (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Allowance balance attributable to loans:
Balance at the beginning of period	$ 40,157	$ 39,156
Provision charged to operations	202	(320)
Loans charged off	(2,449)	(2,523)
Recoveries of loans previously charged off	2,609	2,638
Balance at the end of period	40,519	38,951
Real Estate Residential Mortgage
Allowance balance attributable to loans:
Balance at the beginning of period	2,660	2,914
Provision charged to operations	(118)	(113)
Recoveries of loans previously charged off	11	13
Balance at the end of period	2,553	2,814
Real Estate Construction
Allowance balance attributable to loans:
Balance at the beginning of period	856	975
Provision charged to operations	116	(182)
Balance at the end of period	972	793
Commercial, Financial & Agricultural
Allowance balance attributable to loans:
Balance at the beginning of period	11,085	10,696
Provision charged to operations	(657)	331
Loans charged off	(11)
Recoveries of loans previously charged off	5	1
Balance at the end of period	10,422	11,028
Equity lines
Allowance balance attributable to loans:
Balance at the beginning of period	593	687
Provision charged to operations	(71)	(88)
Recoveries of loans previously charged off	2	1
Balance at the end of period	524	600
Consumer
Allowance balance attributable to loans:
Balance at the beginning of period	172	371
Provision charged to operations	62	(88)
Loans charged off	(116)	(81)
Recoveries of loans previously charged off	62	65
Balance at the end of period	180	267
Consumer Finance
Allowance balance attributable to loans:
Balance at the beginning of period	24,791	23,513
Provision charged to operations	870	(180)
Loans charged off	(2,322)	(2,442)
Recoveries of loans previously charged off	2,529	2,558
Balance at the end of period	$ 25,868	$ 23,449