Fair Value of Financial Instruments (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Carrying amount [Member] | Level 1 [Member]
Financial assets [Abstract]
Cash and cash equivalents	$ 161,359	$ 140,172
Carrying amount [Member] | Level 2 [Member]
Financial assets [Abstract]
Other equity securities	3,607	3,075
Loans receivable [Abstract]
Loans held-for-sale	4,559	2,832
Financial liabilities [Abstract]
FHLB advances and other borrowings	0	7,000
Carrying amount [Member] | Level 3 [Member]
Loans receivable [Abstract]
Net loans	440,449	432,789
Interest receivable	2,542	2,710
Financial liabilities [Abstract]
Deposits	730,811	678,958
Interest payable	94	134
Fair value [Member] | Level 1 [Member]
Financial assets [Abstract]
Cash and cash equivalents	161,359	140,172
Fair value [Member] | Level 2 [Member]
Financial assets [Abstract]
Other equity securities	3,607	3,075
Loans receivable [Abstract]
Loans held-for-sale	4,704	2,917
Financial liabilities [Abstract]
FHLB advances and other borrowings	0	7,070
Fair value [Member] | Level 3 [Member]
Loans receivable [Abstract]
Net loans	437,818	430,071
Interest receivable	2,542	2,710
Financial liabilities [Abstract]
Deposits	720,690	671,399
Interest payable	$ 94	$ 134