Fair Value Measurements - Additional Information (Details) (USD $)	9 Months Ended
	Sep. 30, 2014	Dec. 31, 2013
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Foreclosed REO	$ 1,834,000
Impaired loans measured at nonrecurring basis	When the fair value of the collateral is based on an observable market price or a current appraised value, we measure the impaired loan at nonrecurring Level 2. When an appraised value is not available, or management determines the fair value of the collateral is further impaired below the appraised value and there is no observable market price or a discounted cash flow has been used to determine the fair value, we measure the impaired loan at nonrecurring Level 3.
Foreclosed assets measured at nonrecurring basis	When the fair value of the collateral is based on an observable market price or a current appraised value, we measure the foreclosed asset at nonrecurring Level 2. When an appraised value is not available or management determines the fair value of the collateral is further impaired below the appraised value and there is no observable market price, we measure the foreclosed asset at nonrecurring Level 3.
Borrowings	228,682,000	141,063,000
Fair Value Measurement Level 2
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Borrowings	208,000,000	134,000,000
Fair Value Measurement Level 3 - Term Loan
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Borrowings	20,682,000	7,063,000
Fair Value on Nonrecurring Basis
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Foreclosed REO	1,800,000
Disposed REO	3,200,000
Other significant transfers in or out of assets measured	$ 0