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Business Combination & Asset Purchase - Estimated Values of Assets Acquired and Liabilities Assumed (Detail) - USD ($) $ in Thousands | Dec. 31, 2015 | Dec. 31, 2013
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Business Combinations [Abstract] |  |
Cash | $ 204 |
Loans | 11,436 |
Accrued Interest on Loans | 31 |
Premises and Equipment | 271 |
Core Deposit Intangible Asset | 1,171 |
Other Assets | 1 |
Total Assets Acquired | 13,114 |
Deposits | 29,466 |
Accrued Interest on Deposits | 17 |
Other Liabilities | 17 |
Total Liabilities Assumed | 29,500 | $ 29,500
Net Liabilities Assumed | $ (16,386) |

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