Deferred Revenue (Details) - USD ($)	Jun. 30, 2016	Dec. 31, 2015
Deferred Revenue Arrangement [Line Items]
Total deferred revenue	$ 8,056,920	$ 9,455,133
Less: Long-term deferred revenue	(620,945)	(2,009,198)
Total current deferred revenue	7,435,975	7,445,935
Product Shipped, Revenue Deferred [Member]
Deferred Revenue Arrangement [Line Items]
Total deferred revenue	338,831	366,388
Customer Deposits [Member]
Deferred Revenue Arrangement [Line Items]
Total deferred revenue	1,050,000	2,505,000
Deferred Service And License Fees [Member]
Deferred Revenue Arrangement [Line Items]
Total deferred revenue	$ 6,668,089	$ 6,583,745