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Revenues By Geographic Areas (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Revenues: $ 5,805,605 $ 5,211,742 $ 11,427,699 $ 10,255,528
United States        
Revenues: 4,666,816 4,198,238 9,008,465 8,278,157
Europe        
Revenues: 831,526 678,262 1,931,208 1,415,657
Asia and rest of world        
Revenues: $ 307,263 $ 335,242 $ 488,026 $ 561,714