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Business Combinations (Details Textual) |  |  |  | 1 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | ---
Jun. 30, 2018 USD ($) | Aug. 15, 2017 USD ($) $ / shares shares | Jun. 01, 2016 USD ($) shares | Aug. 11, 2017 | Jul. 31, 2017 USD ($) valuation | Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($)
Business Acquisition [Line Items] |  |  |  |  |  |  |
Goodwill |  |  |  |  |  | $ 38,201,000 | $ 38,201,000
Monitor Bancorp, Inc. |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Shares of stock issued for acquisition | shares |  | 465,787 |  |  |  |  |
Fair value of total consideration transferred |  | $ 7,512,000 |  |  |  |  |
Maximum shares exchanged for stock |  | 85.00% |  |  |  |  |
Maximum shares exchanged for cash |  | 15.00% |  |  |  |  |
Cash consideration per share | $ / shares |  | $ 769.38 |  |  |  |  |
Multiplier used to calculate per share cash consideration |  | 1.25 |  |  |  |  |
Period of trading days considered for volume weighted average closing price |  |  |  | 20 days |  |  |
Volume weighted average closing price per share of common shares | $ / shares |  | $ 14.04 |  |  |  |  |
Final stock exchange ratio |  | 54.80 |  |  |  |  |
Goodwill |  | $ 1,037,000 |  |  |  |  |
Monitor Bancorp, Inc. | Core Deposits |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Fair value of other intangible assets |  | $ 673,000 |  |  |  |  |
Bowers Insurance Agency, Inc. |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Shares of stock issued for acquisition | shares |  |  | 123,280 |  |  |  |
Fair value of total consideration transferred |  |  | $ 3,155,000 |  |  |  |
Goodwill |  |  | 1,849,000 |  |  |  |
Fair value of other intangible assets |  |  | 1,630,000 |  |  |  |
Contingent future payments |  |  | 1,200,000 |  |  |  |
Contingent consideration |  |  | $ 880,000 |  | $ 316,000 |  |
Number of annual valuation of contingent consideration | valuation |  |  |  |  | 2 |  |
Contingent consideration future payment liability |  |  |  |  |  | 20,000 | 200,000
Reduction to acquisition related costs |  |  |  |  |  | $ 180,000 | $ 364,000
Bowers Insurance Agency, Inc. | Earnout Payment |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Contingent consideration | $ 0 |  |  |  | $ 564,000 |  |

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