Financing Receivables - Impaired Loans (Details 6) - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended |
Sep. 30, 2015 | Dec. 31, 2014 |
Loans Receivable | | |
Financing Receivable, Impaired [Line Items] | | |
Related Allowance | $ 354 | $ 377 |
Recorded Investment | 14,973 | 15,382 |
Unpaid Principal Balance | 14,973 | 15,382 |
Average Recorded Investment | 15,177 | 15,737 |
Interest Income Recognized | 77 | 438 |
Loans Receivable | Residential | One-to-four Family | | |
Financing Receivable, Impaired [Line Items] | | |
Related Allowance | 260 | 370 |
Recorded Investment | 8,103 | 7,780 |
Unpaid Principal Balance | 8,103 | 7,780 |
Average Recorded Investment | 7,942 | 7,720 |
Interest Income Recognized | $ 46 | $ 135 |
Loans Receivable | Residential | Multi-family | | |
Financing Receivable, Impaired [Line Items] | | |
Related Allowance | | |
Recorded Investment | $ 658 | $ 455 |
Unpaid Principal Balance | 658 | 455 |
Average Recorded Investment | $ 556 | $ 803 |
Interest Income Recognized | | |
Loans Receivable | Residential | Construction | | |
Financing Receivable, Impaired [Line Items] | | |
Related Allowance | | |
Recorded Investment | | |
Unpaid Principal Balance | | |
Average Recorded Investment | | |
Interest Income Recognized | | |
Loans Receivable | Commercial | | |
Financing Receivable, Impaired [Line Items] | | |
Related Allowance | $ 94 | $ 7 |
Recorded Investment | 6,211 | 7,146 |
Unpaid Principal Balance | 6,211 | 7,146 |
Average Recorded Investment | 6,678 | 7,205 |
Interest Income Recognized | $ 31 | $ 303 |
Loans Receivable | Consumer | | |
Financing Receivable, Impaired [Line Items] | | |
Related Allowance | | |
Recorded Investment | $ 1 | $ 1 |
Unpaid Principal Balance | 1 | 1 |
Average Recorded Investment | $ 1 | $ 9 |
Interest Income Recognized | | |
Purchased loans | | |
Financing Receivable, Impaired [Line Items] | | |
Recorded Investment, with related allowance | $ 779 | $ 639 |
Unpaid Principal Balance, with related allowance | 779 | 639 |
Related Allowance | 156 | 113 |
Average Recorded Investment, with related allowance | $ 709 | 263 |
Interest Income Recognized, with related allowance | | 12 |
Purchased loans | With Credit Quality Discount | | |
Financing Receivable, Impaired [Line Items] | | |
Recorded Investment, with no related allowance recorded | $ 9,358 | 10,667 |
Unpaid Principal Balance, with no related allowance recorded | $ 9,358 | $ 10,667 |
Related Allowance, with no related allowance recorded | | |
Average Recorded Investment, with no related allowance | $ 10,012 | $ 10,747 |
Interest Income Recognized, with no related allowance | 77 | 347 |
Recorded Investment, with related allowance | 34 | 53 |
Unpaid Principal Balance, with related allowance | 34 | 53 |
Related Allowance | 12 | 19 |
Average Recorded Investment, with related allowance | $ 43 | $ 16 |
Interest Income Recognized, with related allowance | | |
Purchased loans | With no credit quality discount | | |
Financing Receivable, Impaired [Line Items] | | |
Recorded Investment, with no related allowance recorded | $ 2,255 | $ 1,735 |
Unpaid Principal Balance, with no related allowance recorded | $ 2,255 | $ 1,735 |
Related Allowance, with no related allowance recorded | | |
Average Recorded Investment, with no related allowance | $ 1,995 | $ 2,199 |
Interest Income Recognized, with no related allowance | | 33 |
Purchased loans | Residential | One-to-four Family | | |
Financing Receivable, Impaired [Line Items] | | |
Recorded Investment, with related allowance | $ 488 | 639 |
Unpaid Principal Balance, with related allowance | 488 | 639 |
Related Allowance | 69 | 113 |
Average Recorded Investment, with related allowance | $ 564 | 263 |
Interest Income Recognized, with related allowance | | 12 |
Purchased loans | Residential | One-to-four Family | With Credit Quality Discount | | |
Financing Receivable, Impaired [Line Items] | | |
Recorded Investment, with no related allowance recorded | $ 3,675 | 3,977 |
Unpaid Principal Balance, with no related allowance recorded | $ 3,675 | $ 3,977 |
Related Allowance, with no related allowance recorded | | |
Average Recorded Investment, with no related allowance | $ 3,826 | $ 3,578 |
Interest Income Recognized, with no related allowance | 46 | 61 |
Recorded Investment, with related allowance | 34 | 53 |
Unpaid Principal Balance, with related allowance | 34 | 53 |
Related Allowance | 12 | 19 |
Average Recorded Investment, with related allowance | $ 43 | $ 16 |
Interest Income Recognized, with related allowance | | |
Purchased loans | Residential | One-to-four Family | With no credit quality discount | | |
Financing Receivable, Impaired [Line Items] | | |
Recorded Investment, with no related allowance recorded | $ 1,713 | $ 1,080 |
Unpaid Principal Balance, with no related allowance recorded | $ 1,713 | $ 1,080 |
Related Allowance, with no related allowance recorded | | |
Average Recorded Investment, with no related allowance | $ 1,397 | $ 1,863 |
Interest Income Recognized, with no related allowance | | $ 23 |
Purchased loans | Residential | Multi-family | | |
Financing Receivable, Impaired [Line Items] | | |
Recorded Investment, with related allowance | | |
Unpaid Principal Balance, with related allowance | | |
Related Allowance | | |
Average Recorded Investment, with related allowance | | |
Interest Income Recognized, with related allowance | | |
Purchased loans | Residential | Multi-family | With Credit Quality Discount | | |
Financing Receivable, Impaired [Line Items] | | |
Recorded Investment, with no related allowance recorded | $ 356 | $ 360 |
Unpaid Principal Balance, with no related allowance recorded | $ 356 | $ 360 |
Related Allowance, with no related allowance recorded | | |
Average Recorded Investment, with no related allowance | $ 358 | $ 708 |
Interest Income Recognized, with no related allowance | | |
Recorded Investment, with related allowance | | |
Unpaid Principal Balance, with related allowance | | |
Related Allowance | | |
Average Recorded Investment, with related allowance | | |
Interest Income Recognized, with related allowance | | |
Purchased loans | Residential | Multi-family | With no credit quality discount | | |
Financing Receivable, Impaired [Line Items] | | |
Recorded Investment, with no related allowance recorded | $ 109 | |
Unpaid Principal Balance, with no related allowance recorded | $ 109 | |
Related Allowance, with no related allowance recorded | | |
Average Recorded Investment, with no related allowance | $ 54 | |
Interest Income Recognized, with no related allowance | | |
Purchased loans | Residential | Construction | | |
Financing Receivable, Impaired [Line Items] | | |
Recorded Investment, with related allowance | | |
Unpaid Principal Balance, with related allowance | | |
Related Allowance | | |
Average Recorded Investment, with related allowance | | |
Interest Income Recognized, with related allowance | | |
Purchased loans | Residential | Construction | With Credit Quality Discount | | |
Financing Receivable, Impaired [Line Items] | | |
Recorded Investment, with no related allowance recorded | | |
Unpaid Principal Balance, with no related allowance recorded | | |
Related Allowance, with no related allowance recorded | | |
Average Recorded Investment, with no related allowance | | |
Interest Income Recognized, with no related allowance | | |
Recorded Investment, with related allowance | | |
Unpaid Principal Balance, with related allowance | | |
Related Allowance | | |
Average Recorded Investment, with related allowance | | |
Interest Income Recognized, with related allowance | | |
Purchased loans | Residential | Construction | With no credit quality discount | | |
Financing Receivable, Impaired [Line Items] | | |
Recorded Investment, with no related allowance recorded | | |
Unpaid Principal Balance, with no related allowance recorded | | |
Related Allowance, with no related allowance recorded | | |
Average Recorded Investment, with no related allowance | | |
Interest Income Recognized, with no related allowance | | |
Purchased loans | Commercial | | |
Financing Receivable, Impaired [Line Items] | | |
Recorded Investment, with related allowance | $ 291 | |
Unpaid Principal Balance, with related allowance | 291 | |
Related Allowance | 87 | |
Average Recorded Investment, with related allowance | $ 145 | |
Interest Income Recognized, with related allowance | | |
Purchased loans | Commercial | With Credit Quality Discount | | |
Financing Receivable, Impaired [Line Items] | | |
Recorded Investment, with no related allowance recorded | $ 5,326 | $ 6,329 |
Unpaid Principal Balance, with no related allowance recorded | $ 5,326 | $ 6,329 |
Related Allowance, with no related allowance recorded | | |
Average Recorded Investment, with no related allowance | $ 5,827 | $ 6,460 |
Interest Income Recognized, with no related allowance | $ 31 | $ 286 |
Recorded Investment, with related allowance | | |
Unpaid Principal Balance, with related allowance | | |
Related Allowance | | |
Average Recorded Investment, with related allowance | | |
Interest Income Recognized, with related allowance | | |
Purchased loans | Commercial | With no credit quality discount | | |
Financing Receivable, Impaired [Line Items] | | |
Recorded Investment, with no related allowance recorded | $ 433 | $ 655 |
Unpaid Principal Balance, with no related allowance recorded | $ 433 | $ 655 |
Related Allowance, with no related allowance recorded | | |
Average Recorded Investment, with no related allowance | $ 544 | $ 328 |
Interest Income Recognized, with no related allowance | | $ 10 |
Purchased loans | Consumer | | |
Financing Receivable, Impaired [Line Items] | | |
Recorded Investment, with related allowance | | |
Unpaid Principal Balance, with related allowance | | |
Related Allowance | | |
Average Recorded Investment, with related allowance | | |
Interest Income Recognized, with related allowance | | |
Purchased loans | Consumer | With Credit Quality Discount | | |
Financing Receivable, Impaired [Line Items] | | |
Recorded Investment, with no related allowance recorded | $ 1 | $ 1 |
Unpaid Principal Balance, with no related allowance recorded | $ 1 | $ 1 |
Related Allowance, with no related allowance recorded | | |
Average Recorded Investment, with no related allowance | $ 1 | $ 1 |
Interest Income Recognized, with no related allowance | | |
Recorded Investment, with related allowance | | |
Unpaid Principal Balance, with related allowance | | |
Related Allowance | | |
Average Recorded Investment, with related allowance | | |
Interest Income Recognized, with related allowance | | |
Purchased loans | Consumer | With no credit quality discount | | |
Financing Receivable, Impaired [Line Items] | | |
Recorded Investment, with no related allowance recorded | | |
Unpaid Principal Balance, with no related allowance recorded | | |
Related Allowance, with no related allowance recorded | | |
Average Recorded Investment, with no related allowance | | $ 8 |
Interest Income Recognized, with no related allowance | | |
Originated loans | | |
Financing Receivable, Impaired [Line Items] | | |
Recorded Investment, with no related allowance recorded | $ 1,947 | $ 1,575 |
Unpaid Principal Balance, with no related allowance recorded | $ 1,947 | $ 1,575 |
Related Allowance, with no related allowance recorded | | |
Average Recorded Investment, with no related allowance | $ 1,761 | $ 2,278 |
Interest Income Recognized, with no related allowance | | 37 |
Recorded Investment, with related allowance | $ 600 | 713 |
Unpaid Principal Balance, with related allowance | 600 | 713 |
Related Allowance | 186 | 245 |
Average Recorded Investment, with related allowance | $ 657 | 234 |
Interest Income Recognized, with related allowance | | 9 |
Originated loans | Residential | One-to-four Family | | |
Financing Receivable, Impaired [Line Items] | | |
Recorded Investment, with no related allowance recorded | $ 1,640 | 1,365 |
Unpaid Principal Balance, with no related allowance recorded | $ 1,640 | $ 1,365 |
Related Allowance, with no related allowance recorded | | |
Average Recorded Investment, with no related allowance | $ 1,502 | $ 1,786 |
Interest Income Recognized, with no related allowance | | 30 |
Recorded Investment, with related allowance | $ 553 | 666 |
Unpaid Principal Balance, with related allowance | 553 | 666 |
Related Allowance | 179 | 238 |
Average Recorded Investment, with related allowance | $ 610 | 214 |
Interest Income Recognized, with related allowance | | 9 |
Originated loans | Residential | Multi-family | | |
Financing Receivable, Impaired [Line Items] | | |
Recorded Investment, with no related allowance recorded | $ 193 | 95 |
Unpaid Principal Balance, with no related allowance recorded | $ 193 | $ 95 |
Related Allowance, with no related allowance recorded | | |
Average Recorded Investment, with no related allowance | $ 144 | $ 95 |
Interest Income Recognized, with no related allowance | | |
Recorded Investment, with related allowance | | |
Unpaid Principal Balance, with related allowance | | |
Related Allowance | | |
Average Recorded Investment, with related allowance | | |
Interest Income Recognized, with related allowance | | |
Originated loans | Residential | Construction | | |
Financing Receivable, Impaired [Line Items] | | |
Recorded Investment, with no related allowance recorded | | |
Unpaid Principal Balance, with no related allowance recorded | | |
Related Allowance, with no related allowance recorded | | |
Average Recorded Investment, with no related allowance | | |
Interest Income Recognized, with no related allowance | | |
Recorded Investment, with related allowance | | |
Unpaid Principal Balance, with related allowance | | |
Related Allowance | | |
Average Recorded Investment, with related allowance | | |
Interest Income Recognized, with related allowance | | |
Originated loans | Commercial | | |
Financing Receivable, Impaired [Line Items] | | |
Recorded Investment, with no related allowance recorded | $ 114 | $ 115 |
Unpaid Principal Balance, with no related allowance recorded | $ 114 | $ 115 |
Related Allowance, with no related allowance recorded | | |
Average Recorded Investment, with no related allowance | $ 115 | $ 397 |
Interest Income Recognized, with no related allowance | | 7 |
Recorded Investment, with related allowance | $ 47 | 47 |
Unpaid Principal Balance, with related allowance | 47 | 47 |
Related Allowance | 7 | 7 |
Average Recorded Investment, with related allowance | $ 47 | $ 20 |
Interest Income Recognized, with related allowance | | |
Originated loans | Consumer | | |
Financing Receivable, Impaired [Line Items] | | |
Recorded Investment, with no related allowance recorded | | |
Unpaid Principal Balance, with no related allowance recorded | | |
Related Allowance, with no related allowance recorded | | |
Average Recorded Investment, with no related allowance | | |
Interest Income Recognized, with no related allowance | | |
Recorded Investment, with related allowance | | |
Unpaid Principal Balance, with related allowance | | |
Related Allowance | | |
Average Recorded Investment, with related allowance | | |
Interest Income Recognized, with related allowance | | |