Loans - Past Due Status (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
Loans on nonaccrual status
30-59 Days Past Due	$ 8,214,000	$ 14,345,000
60-89 Days Past Due	2,038,000	3,150,000
Loans, 90+ days past due	2,097,000	1,962,000
Total Past Due	12,349,000	19,457,000
PCI	19,824,000	21,424,000
Current	811,677,000	794,923,000
Total Loans	843,850,000	835,804,000
90+ days past due and accruing	25,000	14,000
Additional disclosure for nonaccrual loans
Current, nonaccrual status	3,090,000	3,060,000
Nonaccrual loans, 30-59 days past due	198,000	697,000
Nonaccrual loans, 60-89 days past due	293,000	417,000
Nonaccrual loans, 90+ days past due	2,070,000	1,770,000
Real estate - residential mortgage
Loans on nonaccrual status
30-59 Days Past Due	764,000	1,481,000
60-89 Days Past Due	456,000	256,000
Loans, 90+ days past due	883,000	679,000
Total Past Due	2,103,000	2,416,000
PCI	1,656,000	1,723,000
Current	176,620,000	175,678,000
Total Loans	180,379,000	179,817,000
Equity lines
Loans on nonaccrual status
30-59 Days Past Due	175,000	319,000
60-89 Days Past Due		205,000
Loans, 90+ days past due	182,000	122,000
Total Past Due	357,000	646,000
PCI	311,000	318,000
Current	48,976,000	49,357,000
Total Loans	49,644,000	50,321,000
90+ days past due and accruing	25,000	14,000
Consumer Loan
Loans on nonaccrual status
30-59 Days Past Due	19,000	15,000
60-89 Days Past Due	3,000	37,000
Loans, 90+ days past due	6,000	6,000
Total Past Due	28,000	58,000
PCI	16,000	16,000
Current	8,439,000	8,089,000
Total Loans	8,483,000	8,163,000
Consumer Finance
Loans on nonaccrual status
30-59 Days Past Due	7,135,000	12,421,000
60-89 Days Past Due	1,579,000	2,599,000
Loans, 90+ days past due	739,000	1,040,000
Total Past Due	9,453,000	16,060,000
Current	267,891,000	267,273,000
Total Loans	277,344,000	283,333,000
Construction Lending | Real estate - construction
Loans on nonaccrual status
Current	5,250,000	3,839,000
Total Loans	5,250,000	3,839,000
Consumer lot lending | Real estate - construction
Loans on nonaccrual status
Current	2,157,000	3,486,000
Total Loans	2,157,000	3,486,000
Commercial real estate lending | Commercial, financial and agricultural
Loans on nonaccrual status
30-59 Days Past Due	102,000	88,000
Loans, 90+ days past due	66,000	115,000
Total Past Due	168,000	203,000
PCI	15,411,000	13,011,000
Current	183,766,000	171,566,000
Total Loans	199,345,000	184,780,000
Land acquisition and development lending | Commercial, financial and agricultural
Loans on nonaccrual status
PCI	74,000	3,379,000
Current	42,244,000	44,094,000
Total Loans	42,318,000	47,473,000
Builder line lending | Commercial, financial and agricultural
Loans on nonaccrual status
Loans, 90+ days past due	221,000
Total Past Due	221,000
PCI		48,000
Current	21,122,000	20,207,000
Total Loans	21,343,000	20,255,000
Commercial business lending | Commercial, financial and agricultural
Loans on nonaccrual status
30-59 Days Past Due	19,000	21,000
60-89 Days Past Due		53,000
Total Past Due	19,000	74,000
PCI	2,356,000	2,929,000
Current	55,212,000	51,334,000
Total Loans	57,587,000	54,337,000
CVBK
Loans on nonaccrual status
30-59 Days Past Due	97,000	634,000
60-89 Days Past Due		88,000
Loans, 90+ days past due	407,000	413,000
Current	$ 76,300,000	$ 79,010,000