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Loans Receivable (Details 3) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015
Residential Real Estate Including Home Equity [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Recorded Investment | $ 2,375 | $ 1,918
Unpaid Principal Balance | 4,359 | 4,914
Related Allowance | 879 | 149
Average Recorded Investment | 2,930 | 1,512
Interest Income Recognized | 126 | 3
Commercial Real Estate, Construction & Land Development, and Other Dwellings [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Recorded Investment | 374 | 5,298
Unpaid Principal Balance | 374 | 5,298
Related Allowance | 3 | 171
Average Recorded Investment | 1,274 | 5,109
Interest Income Recognized | 0 | 8
Commercial Participations Purchased [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Recorded Investment | 82 | 92
Unpaid Principal Balance | 82 | 92
Related Allowance | 0 | 14
Average Recorded Investment | 87 | 96
Interest Income Recognized | 6 | 0
Commercial business [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Recorded Investment | 687 | 96
Unpaid Principal Balance | 687 | 96
Related Allowance | 354 | 22
Average Recorded Investment | 492 | 103
Interest Income Recognized | 5 | 0
Impaired Loans With No Related Allowance [Member] | Residential Real Estate Including Home Equity [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Recorded Investment | 1,309 | 1,741
Unpaid Principal Balance | 3,293 | 4,737
Related Allowance | 0 | 0
Average Recorded Investment | 2,582 | 1,327
Interest Income Recognized | 120 | 3
Impaired Loans With No Related Allowance [Member] | Commercial Real Estate, Construction & Land Development, and Other Dwellings [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Recorded Investment | 356 | 5,075
Unpaid Principal Balance | 356 | 5,075
Related Allowance | 0 | 0
Average Recorded Investment | 1,256 | 5,040
Interest Income Recognized | 0 | 8
Impaired Loans With No Related Allowance [Member] | Commercial Participations Purchased [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Recorded Investment | 82 | 0
Unpaid Principal Balance | 82 | 0
Related Allowance | 0 | 0
Average Recorded Investment | 16 | 0
Interest Income Recognized | 6 | 0
Impaired Loans With No Related Allowance [Member] | Commercial business [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Recorded Investment | 212 | 74
Unpaid Principal Balance | 212 | 74
Related Allowance | 0 | 0
Average Recorded Investment | 168 | 80
Interest Income Recognized | 4 | 0
Impaired Loans With Related Allowance [Member] | Residential Real Estate Including Home Equity [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Recorded Investment | 1,066 | 177
Unpaid Principal Balance | 1,066 | 177
Related Allowance | 879 | 149
Average Recorded Investment | 348 | 185
Interest Income Recognized | 6 | 0
Impaired Loans With Related Allowance [Member] | Commercial Real Estate, Construction & Land Development, and Other Dwellings [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Recorded Investment | 18 | 223
Unpaid Principal Balance | 18 | 223
Related Allowance | 3 | 171
Average Recorded Investment | 18 | 69
Interest Income Recognized | 0 | 0
Impaired Loans With Related Allowance [Member] | Commercial Participations Purchased [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Recorded Investment | 0 | 92
Unpaid Principal Balance | 0 | 92
Related Allowance | 0 | 14
Average Recorded Investment | 71 | 96
Interest Income Recognized | 0 | 0
Impaired Loans With Related Allowance [Member] | Commercial business [Member] |  |
Financing Receivable, Impaired [Line Items] |  |
Recorded Investment | 475 | 22
Unpaid Principal Balance | 475 | 22
Related Allowance | 354 | 22
Average Recorded Investment | 324 | 23
Interest Income Recognized | $ 1 | $ 0

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