Acquisitions - Pro Forma Information (Details) - USD ($)	3 Months Ended	9 Months Ended
Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Business Combinations [Abstract]
Revenues	$ 32,246,472	$ 34,834,671	$ 94,415,702	$ 98,969,801
Net income	$ 2,222,722	$ 1,031,420	$ 2,844,422	$ 31,235,947
Basic earnings per share (in dollars per share)	$ 0.03	$ 0.02	$ 0.04	$ 0.63
Diluted earnings per share (in dollars per share)	$ 0.03	$ 0.02	$ 0.04	$ 0.56

The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(2)-(3)
-URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463

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The pro forma diluted net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

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The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

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The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

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No definition available.

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