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Acquisitions (Pro Forma Information) (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2017 | Dec. 31, 2016
Business Acquisition [Line Items] |  |
Pro forma revenues | $ 206,071,634 | $ 161,591,159
Pro forma net income | $ 1,441,258 | $ (9,730,841)
Earnings per share: |  |
Basic (dollars per share) | $ 0.17 | $ (1.12)
Diluted (dollars per share) | $ 0.17 | $ (1.12)

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