Income Taxes (Details 2) - USD ($)	Dec. 31, 2015	Dec. 31, 2014
Deferred tax assets:
Stock-based compensation	$ 127,754	$ 168,926
Allowance for doubtful accounts	20,599	33,585
Accrued expenses	115,221	89,212
R&D tax credits	407,705	84,806
Deferred Tax Assets Gross	671,279	376,529
Deferred tax liabilities:
Prepaid expenses	(57,697)	(44,565)
Excess of tax over book depreciation and amortization	(3,138,885)	(2,752,101)
Deferred Tax Liabilities, Gross	(3,196,582)	(2,796,666)
Net deferred tax liabilities	$ (2,525,303)	$ (2,420,137)