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Other Long-Term Liabilities - Components of Other Long-Term Liabilities(Details) - USD ($)
Jun. 30, 2018
Dec. 31, 2017
Other Liabilities Disclosure [Abstract]    
Capital leases, less current portion $ 175,111 $ 281,470
Deferred rent 117,290 131,493
Accrued taxes, less current portion 13,762 13,762
Total $ 306,163 $ 426,725