Loans and Allowance for Loan Losses - Troubled debt restructurings by class (Details 7) (Loans Receivable, USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013 Loan	Sep. 30, 2012 Loan	Sep. 30, 2013 Loan	Sep. 30, 2012 Loan
Financing Receivable, Modifications [Line Items]
Number of newly restructured loans	1	1	11	4
Pre-modification Recorded Balance	$ 95	$ 87	$ 2,460	$ 540
Post-modification Recorded Balance	95	87	2,169	540
Commercial
Financing Receivable, Modifications [Line Items]
Number of newly restructured loans
Pre-modification Recorded Balance
Post-modification Recorded Balance
Owner Occupied 1-4
Financing Receivable, Modifications [Line Items]
Number of newly restructured loans
Pre-modification Recorded Balance
Post-modification Recorded Balance
Owner occupied 1-4 - Term
Financing Receivable, Modifications [Line Items]
Number of newly restructured loans		1
Pre-modification Recorded Balance		87
Post-modification Recorded Balance		87
Type of Modification		Term
Owner occupied 1-4 - Below market rate
Financing Receivable, Modifications [Line Items]
Number of newly restructured loans			1	1
Pre-modification Recorded Balance			38	108
Post-modification Recorded Balance			38	108
Type of Modification			Below market rate	Below market rate
Owner occupied 1-4 - High loan-to-value
Financing Receivable, Modifications [Line Items]
Number of newly restructured loans				1
Pre-modification Recorded Balance				87
Post-modification Recorded Balance				87
Type of Modification				High loan-to-value
Non-owner Occupied 1-4
Financing Receivable, Modifications [Line Items]
Number of newly restructured loans			7
Pre-modification Recorded Balance			1,520
Post-modification Recorded Balance			1,246
Type of Modification			A/B note, payment adjustment, term
Multi-family
Financing Receivable, Modifications [Line Items]
Number of newly restructured loans
Pre-modification Recorded Balance
Post-modification Recorded Balance
Commercial Real Estate
Financing Receivable, Modifications [Line Items]
Number of newly restructured loans			1	2
Pre-modification Recorded Balance			778	345
Post-modification Recorded Balance			761	345
Type of Modification			Term	Below market rate
Construction
Financing Receivable, Modifications [Line Items]
Number of newly restructured loans
Pre-modification Recorded Balance
Post-modification Recorded Balance
Land
Financing Receivable, Modifications [Line Items]
Number of newly restructured loans	1		1
Pre-modification Recorded Balance	95		95
Post-modification Recorded Balance	95		95
Type of Modification	Rate and term		Rate and term
Consumer and Home Equity
Financing Receivable, Modifications [Line Items]
Number of newly restructured loans			1
Pre-modification Recorded Balance			29
Post-modification Recorded Balance			$ 29
Type of Modification			Term