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Fair Value Accounting (Details 3) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Financial Assets:
Cash and cash equivalents, Carrying Value	$ 41,264	$ 39,203	$ 29,413	$ 23,005
Other investments, at cost, Carrying Value	6,522us-gaap_OtherInvestments	6,116us-gaap_OtherInvestments
Loans held for sale, Carrying Value	11,765	3,611
Loans, net, Carrying Value	859,694us-gaap_LoansReceivableNet	723,443us-gaap_LoansReceivableNet
Cash and cash equivalents, Fair Value	41,264	39,203
Other investments, at cost, Fair Value	6,522us-gaap_OtherAssetsFairValueDisclosure	6,116us-gaap_OtherAssetsFairValueDisclosure
Loans held for sale, Fair Value	11,765	3,611
Loans, net, Fair Value	860,215	732,328
Financial Liabilities:
Deposits, Carrying Value	788,907us-gaap_Deposits	680,319us-gaap_Deposits
FHLB and other borrowings, Carrying Value	135,200us-gaap_FederalHomeLoanBankAdvances	124,100us-gaap_FederalHomeLoanBankAdvances
Junior subordinated debentures, Carrying Value	13,403us-gaap_SubordinatedDebt	13,403us-gaap_SubordinatedDebt
Deposits, Fair Value	748,497us-gaap_DepositsFairValueDisclosure	643,399us-gaap_DepositsFairValueDisclosure
FHLB and other borrowings, Fair Value	144,156	135,411
Junior subordinated debentures, Fair Value	6,823	5,145
Fair Value, Inputs, Level 1 [Member] \| Estimate of Fair Value, Fair Value Disclosure [Member]
Financial Assets:
Cash and cash equivalents, Fair Value	41,264	39,203
Other investments, at cost, Fair Value
Loans held for sale, Fair Value
Loans, net, Fair Value
Financial Liabilities:
Deposits, Fair Value
FHLB and other borrowings, Fair Value
Junior subordinated debentures, Fair Value
Fair Value, Inputs, Level 2 [Member] \| Estimate of Fair Value, Fair Value Disclosure [Member]
Financial Assets:
Cash and cash equivalents, Fair Value
Other investments, at cost, Fair Value
Loans held for sale, Fair Value	11,765	3,611
Loans, net, Fair Value	9,461	10,676
Financial Liabilities:
Deposits, Fair Value	748,497	550,988
FHLB and other borrowings, Fair Value	144,156	135,411
Junior subordinated debentures, Fair Value	6,823	5,145
Fair Value, Inputs, Level 3 [Member] \| Estimate of Fair Value, Fair Value Disclosure [Member]
Financial Assets:
Cash and cash equivalents, Fair Value
Other investments, at cost, Fair Value	6,522	6,116
Loans held for sale, Fair Value
Loans, net, Fair Value	850,754	721,652
Financial Liabilities:
Deposits, Fair Value
FHLB and other borrowings, Fair Value
Junior subordinated debentures, Fair Value