Accrued Expenses (Details) - USD ($)	Dec. 31, 2017	Dec. 31, 2016
Payables and Accruals [Abstract]
Accrued compensation	$ 522,057	$ 1,058,671
Accrued consulting and professional fees	1,207,061	1,270,568
Accrued marketing and promotion	0	10,307
Other accrued expenses	259,579	259,567
Accrued income taxes	306,419	129,784
Accrued other taxes	378,374	699,872
Accrued hardware purchases	31,499	0
Accrued restructuring costs	602,299	846,337
Accrued Series A redeemable convertible preferred stock dividends	1,068,947	195,904
Total accrued expenses	$ 4,376,235	$ 4,471,010