Loans - Past Due Status (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Loans on nonaccrual status
Total Past Due	$ 20,683	$ 24,656
Current	941,244	862,897
Total Loans	972,668	901,461
90+ days past due and accruing	1,092	761
Additional disclosure for nonaccrual loans
Current, nonaccrual status	3,030	3,170
Nonaccrual loans, 30-59 days past due	643	377
Nonaccrual loans, 60-89 days past due	397	887
Nonaccrual loans, 90+ days past due	1,530	2,550
PCI
Loans on nonaccrual status
PCI	10,741	13,908
30-59 Days Past Due
Loans on nonaccrual status
Total Past Due	15,362	17,740
60-89 Days Past Due
Loans on nonaccrual status
Total Past Due	3,221	3,778
90+ Days Past Due
Loans on nonaccrual status
Total Past Due	2,100	3,138
Real estate - residential mortgage
Loans on nonaccrual status
Total Past Due	1,231	1,457
Current	182,995	184,001
Total Loans	185,451	186,763
90+ days past due and accruing		268
Real estate - residential mortgage | PCI
Loans on nonaccrual status
PCI	1,225	1,305
Real estate - residential mortgage | 30-59 Days Past Due
Loans on nonaccrual status
Total Past Due	678	737
Real estate - residential mortgage | 60-89 Days Past Due
Loans on nonaccrual status
Total Past Due	206	146
Real estate - residential mortgage | 90+ Days Past Due
Loans on nonaccrual status
Total Past Due	347	574
Equity lines
Loans on nonaccrual status
Total Past Due	249	990
Current	49,752	48,835
Total Loans	50,278	50,111
Equity lines | PCI
Loans on nonaccrual status
PCI	277	286
Equity lines | 30-59 Days Past Due
Loans on nonaccrual status
Total Past Due	169	378
Equity lines | 60-89 Days Past Due
Loans on nonaccrual status
Total Past Due	80
Equity lines | 90+ Days Past Due
Loans on nonaccrual status
Total Past Due		612
Consumer Loan
Loans on nonaccrual status
Total Past Due	125	105
Current	8,511	8,906
Total Loans	8,636	9,011
Consumer Loan | 30-59 Days Past Due
Loans on nonaccrual status
Total Past Due	122	84
Consumer Loan | 60-89 Days Past Due
Loans on nonaccrual status
Total Past Due		2
Consumer Loan | 90+ Days Past Due
Loans on nonaccrual status
Total Past Due	3	19
Consumer Finance
Loans on nonaccrual status
Total Past Due	12,529	18,140
Current	291,628	273,615
Total Loans	304,157	291,755
Consumer Finance | 30-59 Days Past Due
Loans on nonaccrual status
Total Past Due	10,587	15,046
Consumer Finance | 60-89 Days Past Due
Loans on nonaccrual status
Total Past Due	1,447	2,264
Consumer Finance | 90+ Days Past Due
Loans on nonaccrual status
Total Past Due	495	830
Construction Lending | Real estate - construction
Loans on nonaccrual status
Current	25,873	5,996
Total Loans	25,873	5,996
Consumer lot lending | Real estate - construction
Loans on nonaccrual status
Current	7,410	1,763
Total Loans	7,410	1,763
Commercial real estate lending | Commercial, financial and agricultural
Loans on nonaccrual status
Total Past Due	5,757	3,178
Current	226,052	204,079
Total Loans	239,291	217,616
90+ days past due and accruing	455	172
Commercial real estate lending | Commercial, financial and agricultural | PCI
Loans on nonaccrual status
PCI	7,482	10,359
Commercial real estate lending | Commercial, financial and agricultural | 30-59 Days Past Due
Loans on nonaccrual status
Total Past Due	3,784	1,475
Commercial real estate lending | Commercial, financial and agricultural | 60-89 Days Past Due
Loans on nonaccrual status
Total Past Due	1,439	1,280
Commercial real estate lending | Commercial, financial and agricultural | 90+ Days Past Due
Loans on nonaccrual status
Total Past Due	534	423
Land acquisition and development lending | Commercial, financial and agricultural
Loans on nonaccrual status
Total Past Due	270
Current	60,079	46,311
Total Loans	60,349	46,311
90+ days past due and accruing	270
Land acquisition and development lending | Commercial, financial and agricultural | 90+ Days Past Due
Loans on nonaccrual status
Total Past Due	270
Builder line lending | Commercial, financial and agricultural
Loans on nonaccrual status
Total Past Due	367	359
Current	22,132	20,612
Total Loans	22,499	20,971
90+ days past due and accruing	367
Builder line lending | Commercial, financial and agricultural | 90+ Days Past Due
Loans on nonaccrual status
Total Past Due	367	359
Commercial business lending | Commercial, financial and agricultural
Loans on nonaccrual status
Total Past Due	155	427
Current	66,812	68,779
Total Loans	68,724	71,164
90+ days past due and accruing		321
Commercial business lending | Commercial, financial and agricultural | PCI
Loans on nonaccrual status
PCI	1,757	1,958
Commercial business lending | Commercial, financial and agricultural | 30-59 Days Past Due
Loans on nonaccrual status
Total Past Due	22	20
Commercial business lending | Commercial, financial and agricultural | 60-89 Days Past Due
Loans on nonaccrual status
Total Past Due	49	86
Commercial business lending | Commercial, financial and agricultural | 90+ Days Past Due
Loans on nonaccrual status
Total Past Due	84	321
CVBK | 1-29 Days Past Due
Loans on nonaccrual status
Total Past Due	55,950	66,370
CVBK | 30-59 Days Past Due
Loans on nonaccrual status
Total Past Due	171	270
CVBK | 60-89 Days Past Due
Loans on nonaccrual status
Total Past Due	$ 223	0
CVBK | 90+ Days Past Due
Loans on nonaccrual status
Total Past Due		378
PCI Loans
Loans on nonaccrual status
90+ days past due and accruing		$ 172