Loans - Loans Acquired (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
PCI Loans
Carrying amount
Acquired Loans	$ 12,800
CVBK
Loans
Outstanding principal balance	91,453	$ 96,694
Carrying amount
Acquired Loans	76,132	80,930
CVBK | Real estate - residential mortgage
Carrying amount
Acquired Loans	16,243	16,783
CVBK | Commercial, financial and agricultural
Carrying amount
Acquired Loans	45,619	49,604
CVBK | Equity lines
Carrying amount
Acquired Loans	14,043	14,255
CVBK | Consumer Loan
Carrying amount
Acquired Loans	227	288
CVBK | PCI Loans
Loans
Outstanding principal balance	24,420	25,701
Carrying amount
Acquired Loans	12,770	13,908
CVBK | PCI Loans | Real estate - residential mortgage
Carrying amount
Acquired Loans	1,188	1,305
CVBK | PCI Loans | Commercial, financial and agricultural
Carrying amount
Acquired Loans	11,304	12,317
CVBK | PCI Loans | Equity lines
Carrying amount
Acquired Loans	278	286
CVBK | Purchased Performing Loans
Loans
Outstanding principal balance	67,033	70,993
Carrying amount
Acquired Loans	63,362	67,022
CVBK | Purchased Performing Loans | Real estate - residential mortgage
Carrying amount
Acquired Loans	15,055	15,478
CVBK | Purchased Performing Loans | Commercial, financial and agricultural
Carrying amount
Acquired Loans	34,315	37,287
CVBK | Purchased Performing Loans | Equity lines
Carrying amount
Acquired Loans	13,765	13,969
CVBK | Purchased Performing Loans | Consumer Loan
Carrying amount
Acquired Loans	$ 227	$ 288