Fair Value Accounting (Details 3) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012	Jun. 30, 2012	Dec. 31, 2011
Financial Assets:
Cash and cash equivalents, Carrying Amount	$ 35,639	$ 29,413	$ 31,268	$ 23,005
Other investments, at cost, Carrying Amount	6,116	7,794
Loans, net, Carrying Amount	677,921	636,858
Bank owned life insurance	21,043	18,725
Cash and cash equivalents, Fair Value	35,639	29,413
Other investments, fair value	6,116	7,794
Loans, net, Fair Value	687,391	645,852
Bank owned life insurance, Fair Value	21,043	18,725
Financial Liabilities:
Deposits, Carrying Amount	632,072	576,299
FHLB and other borrowings, Carrying Amount	124,100	124,100
Junior subordinated debentures, Carrying Amount	13,403	13,403
Deposits, Fair Value	599,715	561,599
FHLB and other borrowings, Fair Value	138,825	140,455
Junior subordinated debentures, Fair Value	5,113	5,093
Fair Value, Inputs, Level 1 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member]
Financial Assets:
Cash and cash equivalents, Carrying Amount
Other investments, at cost, Carrying Amount
Loans, net, Carrying Amount
Bank owned life insurance
Cash and cash equivalents, Fair Value	35,639	29,413
Other investments, fair value
Loans, net, Fair Value
Bank owned life insurance, Fair Value
Financial Liabilities:
Deposits, Carrying Amount
FHLB and other borrowings, Carrying Amount
Junior subordinated debentures, Carrying Amount
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, Carrying Amount
Other investments, at cost, Carrying Amount
Loans, net, Carrying Amount
Bank owned life insurance
Cash and cash equivalents, Fair Value
Other investments, fair value
Loans, net, Fair Value	10,319	13,748
Bank owned life insurance, Fair Value
Financial Liabilities:
Deposits, Carrying Amount
FHLB and other borrowings, Carrying Amount
Junior subordinated debentures, Carrying Amount
Deposits, Fair Value	599,715	561,599
FHLB and other borrowings, Fair Value	138,825	140,455
Junior subordinated debentures, Fair Value	5,113	5,093
Fair Value, Inputs, Level 3 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member]
Financial Assets:
Cash and cash equivalents, Carrying Amount
Other investments, at cost, Carrying Amount
Loans, net, Carrying Amount
Bank owned life insurance
Cash and cash equivalents, Fair Value
Other investments, fair value	6,116	7,794
Loans, net, Fair Value	677,072	632,104
Bank owned life insurance, Fair Value	21,043	18,725
Financial Liabilities:
Deposits, Carrying Amount
FHLB and other borrowings, Carrying Amount
Junior subordinated debentures, Carrying Amount
Deposits, Fair Value
FHLB and other borrowings, Fair Value
Junior subordinated debentures, Fair Value