Advances from the Federal Home Loan Bank of Seattle (Details) (USD $)
3 Months Ended
Sep. 30, 2012
Dec. 31, 2011
Federal Home Loan Bank, Advances, Maturities Summary, Average Interest Rate of Amounts Due [Abstract]    
Federal Home Loan Bank (“FHLB”) of Seattle stock, at cost $ 2,290,000 $ 2,310,000
FHLB of Seattle WA
   
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]    
Maximum Borrowing Capacity 116,500,000 100,300,000
Remaining Borrowing Capacity 85,400,000 69,300,000
Federal Home Loan Bank, Advances, Rolling Maturity [Abstract]    
Due within 1 year 25,000,000  
Due in 1 to 2 years 0  
Due in 2 to 3 years 4,000,000  
Due in 3 to 4 years 0  
Due in 4 to 5 years 0  
Federal Home Loan Bank, Advances, Fiscal Year Maturity [Abstract]    
Due within 1 year   25,000,000
Due in 1 to 2 years     
Due in 2 to 3 years   4,000,000
Due in 3 to 4 years   0
Due in 4 to 5 years   0
Federal Home Loan Bank, Advances, Maturities Summary, Average Interest Rate of Amounts Due [Abstract]    
Due within 1 year, average interest rate 2.06% 2.06%
Due in 1 to 2 years, average interest rate 0.00% 0.00%
Due in 2 to 3 years, average interest rate 3.11% 3.11%
Due in 3 to 4 years, average interest rate 0.00% 0.00%
Due in 4 to 5 years, average interest rate 0.00% 0.00%
Amount 29,000,000 29,000,000
Weighted average interest rate 2.20% 2.20%
Federal Home Loan Bank (“FHLB”) of Seattle stock, at cost 2,300,000  
Federal Home Loan Bank of Seattle stock, repurchased $ 20,500