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Loans and Allowance for Loan Losses (Details Textual) - USD ($) | 9 Months Ended |
--- | --- | ---
Sep. 30, 2017 | Sep. 30, 2016
Loans and Allowance for Loan Losses (Textual) |  |
Principal amount outstanding of loans held-in-portfolio | $ 100,000 |
Impaired loans which included in groups of homogenous loans | Impaired loans less than $100,000 are included in groups of homogenous loans. |
Consumer product principal balance | $ 309,000 | $ 530,000

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