Loans Receivable (Details 6) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Commercial business loans [Member]
Average recorded investment and interest income recognized on loans
Average Recorded Investment	$ 340	$ 46
Interest Income Recognized	8
Residential Real Estate, Single Family [Member]
Average recorded investment and interest income recognized on loans
Average Recorded Investment	1,359	1,363
Interest Income Recognized	3	3
Commercial Real Estate [Member]
Average recorded investment and interest income recognized on loans
Average Recorded Investment	13,075	13,950
Interest Income Recognized	194	156
Consumer Loan [Member]
Average recorded investment and interest income recognized on loans
Average Recorded Investment		153
Interest Income Recognized		2
Residential Construction Loans [Member]
Average recorded investment and interest income recognized on loans
Average Recorded Investment	853
Interest Income Recognized	7
With an allowance recorded [Member] | Consumer Home Equity [Member]
Average recorded investment and interest income recognized on loans
Average Recorded Investment	175	153
Interest Income Recognized	3	2
With an allowance recorded [Member] | Commercial business loans [Member]
Average recorded investment and interest income recognized on loans
Average Recorded Investment		46
With an allowance recorded [Member] | Residential Real Estate, Single Family [Member]
Average recorded investment and interest income recognized on loans
Average Recorded Investment
Interest Income Recognized
With an allowance recorded [Member] | Commercial Real Estate [Member]
Average recorded investment and interest income recognized on loans
Average Recorded Investment	7,941	8,421
Interest Income Recognized	124	106
With an allowance recorded [Member] | Dealer Auto and RV [Member]
Average recorded investment and interest income recognized on loans
Average Recorded Investment	4
With no related allowance recorded [Member] | Consumer Home Equity [Member]
Average recorded investment and interest income recognized on loans
Average Recorded Investment	149
Interest Income Recognized	4
With no related allowance recorded [Member] | Commercial business loans [Member]
Average recorded investment and interest income recognized on loans
Average Recorded Investment
Interest Income Recognized
With no related allowance recorded [Member] | Residential Real Estate, Single Family [Member]
Average recorded investment and interest income recognized on loans
Average Recorded Investment	1,359	1,363
Interest Income Recognized	3	3
With no related allowance recorded [Member] | Commercial Real Estate [Member]
Average recorded investment and interest income recognized on loans
Average Recorded Investment	5,134	5,529
Interest Income Recognized	70	50
With no related allowance recorded [Member] | Residential Construction Loans [Member]
Average recorded investment and interest income recognized on loans
Average Recorded Investment	853
Interest Income Recognized	7
With no related allowance recorded [Member] | Dealer Auto and RV [Member]
Average recorded investment and interest income recognized on loans
Average Recorded Investment	12
Interest Income Recognized	$ 1