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Regulatory Matters (Details Textual) | 12 Months Ended
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Dec. 31, 2017
Regulatory Matters (Textual) |
Capital conservation buffer percentage | 1.25%
2015 [Member] |
Regulatory Matters (Textual) |
Capital conservation buffer percentage | 0.00%
2019 [Member] |
Regulatory Matters (Textual) |
Capital conservation buffer percentage | 2.50%

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