Income Taxes - Components of Income Tax (Benefit) Provision (Detail) - USD ($)	3 Months Ended
Mar. 31, 2017	Mar. 31, 2016
Current:
Federal	$ 5,485
State	48,402	$ 51,390
Total	53,887	51,390
Deferred:
Federal	99,358	(395,225)
State	18,692	(92,244)
Total	118,050	(487,469)
Income tax benefit	$ 171,937	$ (436,079)

Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.

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