Fair Value - Nonrecurring Measurements (Details) (Nonrecurring, USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Estimated Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Other real estate owned	$ 291	$ 5,281
Estimated Fair Value | Impaired Loans Receivable | Construction Loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Impaired loans		1,767
Estimated Fair Value | Impaired Loans Receivable | Owner Occupied
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Impaired loans	4,472	4,772
Estimated Fair Value | Impaired Loans Receivable | Non-owner Occupied
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Impaired loans		472
Estimated Fair Value | Impaired Loans Receivable | Commercial Loan
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Impaired loans		265
Estimated Fair Value | Impaired Loans Receivable | One to Four Family
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Impaired loans	352
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Other real estate owned	0	0
Level 1 | Impaired Loans Receivable | Construction Loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Impaired loans		0
Level 1 | Impaired Loans Receivable | Owner Occupied
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Impaired loans	0	0
Level 1 | Impaired Loans Receivable | Non-owner Occupied
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Impaired loans		0
Level 1 | Impaired Loans Receivable | Commercial Loan
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Impaired loans		0
Level 1 | Impaired Loans Receivable | One to Four Family
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Impaired loans	0
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Other real estate owned	0	0
Level 2 | Impaired Loans Receivable | Construction Loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Impaired loans		0
Level 2 | Impaired Loans Receivable | Owner Occupied
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Impaired loans	0	0
Level 2 | Impaired Loans Receivable | Non-owner Occupied
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Impaired loans		0
Level 2 | Impaired Loans Receivable | Commercial Loan
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Impaired loans		0
Level 2 | Impaired Loans Receivable | One to Four Family
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Impaired loans	0
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Other real estate owned	291	5,281
Level 3 | Impaired Loans Receivable | Construction Loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Impaired loans		1,767
Level 3 | Impaired Loans Receivable | Owner Occupied
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Impaired loans	4,472	4,772
Level 3 | Impaired Loans Receivable | Non-owner Occupied
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Impaired loans		472
Level 3 | Impaired Loans Receivable | Commercial Loan
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Impaired loans		265
Level 3 | Impaired Loans Receivable | One to Four Family
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Impaired loans	$ 352