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Business Combination (Details 1) - County Bank Corp ("County") [Member] - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Net interest income | $ 44,440 | $ 42,974 | $ 40,178
Noninterest income | 13,289 | 12,151 | 13,364
Noninterest expense | 42,611 | 38,501 | 37,361
Net income | $ 13,487 | $ 14,251 | $ 11,513
Net income per diluted share | $ 1.86 | $ 1.97 | $ 1.63

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