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Stock-Based Compensation - Summary of Unvested Stock Options (Details) - USD ($)	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Shares
Unvested, beginning of period (in shares)	50,833
Granted (in shares)	32,750
Vested (in shares)	(31,668)
Canceled/Forfeited (in shares)	0
Unvested, end of period (in shares)	51,915
Weighted Average Grant Date Fair Value Per Share
Unvested, weighted average grant date fair value, beginning of period (in USD per share)	$ 12.67
Granted (in USD per share)	11.93
Vested, weighted average grant date fair value (in USD per share)	13.56
Canceled/Forfeited, weighted average grant date fair value per share (in USD per share)	0.00
Unvested, weighted average grant date fair value, end of period (in USD per share)	$ 11.66
Stock Options
Weighted Average Grant Date Fair Value Per Share
Unrecognized compensation cost related to unvested options	$ 491,128
Unrecognized compensation cost related to awards, weighted average period for recognition	3 years
Share-based compensation expense	$ 124,331	$ 166,523

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Employee Service Share-based Compensation, Nonvested Awards, Stock Options, Outstanding [Roll Forward]

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Employee Service Share-based Compensation, Nonvested Awards, Stock Options, Weighted Average Grant Date Fair Value [Roll Forward]

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- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 14.F)
-URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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Unrecognized cost of unvested options awarded to employees as compensation.

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Gross number of share options (or share units) granted during the period.

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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Number of non-vested options outstanding.

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Weighted average grant-date fair value of non-vested options outstanding.

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Number of options vested.

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Weighted average grant-date fair value of options vested.

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