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Business Combinations (Details Textual) - USD ($) $ / shares in Units, $ in Thousands | Aug. 30, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Dec. 31, 2017
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Business Acquisition [Line Items] |  |  |  |  |  |  |
Total assets |  | $ 2,433,210 |  | $ 2,328,864 |  |  |
Deposits |  | 2,040,652 |  | 1,799,720 |  |  |
Equity |  | 293,223 |  | 262,320 | $ 248,789 |  |
Maple Leaf |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Total assets |  |  | $ 277,800 |  |  |  |
Gross loans |  |  | 186,400 |  |  |  |
Deposits |  |  | 191,000 |  |  |  |
Equity |  |  | 32,900 |  |  |  |
COMMON STOCK |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Equity |  | $ 186,018 | $ 185,687 | $ 186,163 | $ 185,840 | $ 186,931 | $ 186,903
Maple Leaf |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Business acquisition, date of merger agreement | Aug. 30, 2019 |  |  |  |  |  |
Maple Leaf | COMMON STOCK |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Cash consideration per share | $ / shares | $ 640.00 |  |  |  |  |  |
Shares of stock issued for acquisition | shares | 45.5948 |  |  |  |  |  |
Maximum shares exchanged for cash | 50.00% |  |  |  |  |  |
Maximum shares exchanged for stock | 50.00% |  |  |  |  |  |
Exercise price of warrants | $ 370.00 |  |  |  |  |  |

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