Allowance for Loan Losses Schedule of Allowance and Loan Balances by Portfolio Segment and Impairment Method (Details) (USD $)	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Impairment Measurement Method [Line Items]
Loan Balance Threshold to Determine Whether Loan is Individually Evaluated for Impairment	$ 375,000
Ending allowance balance:
Individually evaluated for impairment	397,000	718,000
Collectively evaluated for impairment	11,788,000	11,706,000
Total evaluated for impairment	12,185,000	12,424,000	17,179,000	19,461,000
Loans receivable:
Individually evaluated for impairment	41,108,000	45,009,000
Collectively evaluated for impairment	651,626,000	666,615,000
Total loans receivable	692,734,000	711,624,000
Commercial and industrial
Loans receivable:
Individually evaluated for impairment	2,039,000	2,479,000
Collectively evaluated for impairment	100,589,000	82,681,000
Total loans receivable	102,628,000	85,160,000
Commercial real estate - owner occupied
Loans receivable:
Individually evaluated for impairment	9,082,000	11,203,000
Collectively evaluated for impairment	88,964,000	82,630,000
Total loans receivable	98,046,000	93,833,000
Commercial real estate - non-owner occupied
Loans receivable:
Individually evaluated for impairment	21,503,000	25,518,000
Collectively evaluated for impairment	142,889,000	162,775,000
Total loans receivable	164,392,000	188,293,000
Commercial real estate - multifamily
Loans receivable:
Individually evaluated for impairment	3,351,000	673,000
Collectively evaluated for impairment	71,877,000	71,203,000
Total loans receivable	75,228,000	71,876,000
Commercial construction and land development
Loans receivable:
Individually evaluated for impairment	2,366,000	2,781,000
Collectively evaluated for impairment	17,862,000	19,264,000
Total loans receivable	20,228,000	22,045,000
Commercial participations
Loans receivable:
Individually evaluated for impairment	339,000	2,355,000
Collectively evaluated for impairment	4,972,000	9,698,000
Total loans receivable	5,311,000	12,053,000
One-to-four family residential
Loans receivable:
Individually evaluated for impairment	1,808,000	0
Collectively evaluated for impairment	174,135,000	181,698,000
Total loans receivable	175,943,000	181,698,000
Home equity lines of credit
Loans receivable:
Individually evaluated for impairment	620,000	0
Collectively evaluated for impairment	45,857,000	52,873,000
Total loans receivable	46,477,000	52,873,000
Retail construction
Loans receivable:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	1,176,000	1,022,000
Total loans receivable	1,176,000	1,022,000
Consumer
Loans receivable:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	3,305,000	2,771,000
Total loans receivable	3,305,000	2,771,000
Commercial and industrial
Ending allowance balance:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	1,169,000	1,236,000
Total evaluated for impairment	1,169,000	1,236,000
Commercial real estate - owner occupied
Ending allowance balance:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	2,470,000	2,129,000
Total evaluated for impairment	2,470,000	2,129,000
Commercial real estate - non-owner occupied
Ending allowance balance:
Individually evaluated for impairment	217,000	718,000
Collectively evaluated for impairment	3,544,000	3,217,000
Total evaluated for impairment	3,761,000	3,935,000
Commercial real estate - multifamily
Ending allowance balance:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	926,000	370,000
Total evaluated for impairment	926,000	370,000
Commercial construction and land development
Ending allowance balance:
Individually evaluated for impairment	180,000	0
Collectively evaluated for impairment	1,256,000	1,198,000
Total evaluated for impairment	1,436,000	1,198,000
Commercial participations
Ending allowance balance:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	601,000	1,467,000
Total evaluated for impairment	601,000	1,467,000
One-to-four family residential
Ending allowance balance:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	1,101,000	1,521,000
Total evaluated for impairment	1,101,000	1,521,000
Home equity lines of credit
Ending allowance balance:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	552,000	442,000
Total evaluated for impairment	552,000	442,000
Retail construction
Ending allowance balance:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	16,000	3,000
Total evaluated for impairment	16,000	3,000
Consumer
Ending allowance balance:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	153,000	123,000
Total evaluated for impairment	$ 153,000	$ 123,000