Loans - Age Analysis of Past Due Loans by Class of Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Age Analysis of Past Due Loans by Class of Loans [Abstract]
Total Past Due	$ 25,663	$ 7,223
Current	854,374	892,562
Total Loans	880,037	899,785
Loans 90 Days Past Due and Still Accruing	0	0
Commercial, financial and agricultural
Age Analysis of Past Due Loans by Class of Loans [Abstract]
Total Past Due	15,791	3,460
Current	211,080	263,880
Total Loans	226,871	267,340
Loans 90 Days Past Due and Still Accruing	0	0
Real estate – construction
Age Analysis of Past Due Loans by Class of Loans [Abstract]
Total Past Due	4,359	164
Current	73,123	87,342
Total Loans	77,482	87,506
Loans 90 Days Past Due and Still Accruing	0	0
Real estate – commercial
Age Analysis of Past Due Loans by Class of Loans [Abstract]
Total Past Due	3,499	1,206
Current	406,195	367,243
Total Loans	409,694	368,449
Loans 90 Days Past Due and Still Accruing	0	0
Real estate – residential
Age Analysis of Past Due Loans by Class of Loans [Abstract]
Total Past Due	1,798	2,133
Current	124,245	130,302
Total Loans	126,043	132,435
Loans 90 Days Past Due and Still Accruing	0	0
Consumer and other
Age Analysis of Past Due Loans by Class of Loans [Abstract]
Total Past Due	216	260
Current	39,260	43,246
Total Loans	39,476	43,506
Loans 90 Days Past Due and Still Accruing	0	0
Lease financing receivable
Age Analysis of Past Due Loans by Class of Loans [Abstract]
Total Past Due	0	0
Current	471	549
Total Loans	471	549
Loans 90 Days Past Due and Still Accruing	0	0
30-59 Days Past Due
Age Analysis of Past Due Loans by Class of Loans [Abstract]
Total Past Due	7,446	1,738
30-59 Days Past Due | Commercial, financial and agricultural
Age Analysis of Past Due Loans by Class of Loans [Abstract]
Total Past Due	559	385
30-59 Days Past Due | Real estate – construction
Age Analysis of Past Due Loans by Class of Loans [Abstract]
Total Past Due	4,097	47
30-59 Days Past Due | Real estate – commercial
Age Analysis of Past Due Loans by Class of Loans [Abstract]
Total Past Due	2,044	435
30-59 Days Past Due | Real estate – residential
Age Analysis of Past Due Loans by Class of Loans [Abstract]
Total Past Due	617	695
30-59 Days Past Due | Consumer and other
Age Analysis of Past Due Loans by Class of Loans [Abstract]
Total Past Due	129	176
30-59 Days Past Due | Lease financing receivable
Age Analysis of Past Due Loans by Class of Loans [Abstract]
Total Past Due	0	0
60-89 Days Past Due
Age Analysis of Past Due Loans by Class of Loans [Abstract]
Total Past Due	11,639	961
60-89 Days Past Due | Commercial, financial and agricultural
Age Analysis of Past Due Loans by Class of Loans [Abstract]
Total Past Due	11,506	902
60-89 Days Past Due | Real estate – construction
Age Analysis of Past Due Loans by Class of Loans [Abstract]
Total Past Due	0	0
60-89 Days Past Due | Real estate – commercial
Age Analysis of Past Due Loans by Class of Loans [Abstract]
Total Past Due	0	0
60-89 Days Past Due | Real estate – residential
Age Analysis of Past Due Loans by Class of Loans [Abstract]
Total Past Due	73	31
60-89 Days Past Due | Consumer and other
Age Analysis of Past Due Loans by Class of Loans [Abstract]
Total Past Due	60	28
60-89 Days Past Due | Lease financing receivable
Age Analysis of Past Due Loans by Class of Loans [Abstract]
Total Past Due	0	0
Greater than 90 Days Past Due
Age Analysis of Past Due Loans by Class of Loans [Abstract]
Total Past Due	6,578	4,524
Greater than 90 Days Past Due | Commercial, financial and agricultural
Age Analysis of Past Due Loans by Class of Loans [Abstract]
Total Past Due	3,726	2,173
Greater than 90 Days Past Due | Real estate – construction
Age Analysis of Past Due Loans by Class of Loans [Abstract]
Total Past Due	262	117
Greater than 90 Days Past Due | Real estate – commercial
Age Analysis of Past Due Loans by Class of Loans [Abstract]
Total Past Due	1,455	771
Greater than 90 Days Past Due | Real estate – residential
Age Analysis of Past Due Loans by Class of Loans [Abstract]
Total Past Due	1,108	1,407
Greater than 90 Days Past Due | Consumer and other
Age Analysis of Past Due Loans by Class of Loans [Abstract]
Total Past Due	27	56
Greater than 90 Days Past Due | Lease financing receivable
Age Analysis of Past Due Loans by Class of Loans [Abstract]
Total Past Due	$ 0	$ 0