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Consolidated Statements of Cash Flows (Unaudited) - USD ($)
 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
CASH FLOWS FROM OPERATING ACTIVITIES:    
Net loss $ (3,110,155) $ (4,645,529)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and amortization 311,871 328,105
Noncash stock-based compensation expense 282,330 802,623
Provision for doubtful accounts (55,604) 12,764
Deferred rent (34,122) (27,115)
Changes in assets and liabilities:    
(Increase) decrease in accounts receivable (167,832) 318,318
(Increase) decrease in inventory (11,044) 491
(Increase) in other current assets (146,193) (120,776)
Decrease (increase) in other assets 1,358 (1,498)
Increase (decrease) in accounts payable and accrued expenses 229,331 (11,087)
(Decrease) in deferred revenue (195,524) (127,079)
Net cash used in operating activities (2,895,584) (3,470,783)
CASH FLOWS FROM INVESTING ACTIVITIES:    
Purchases of property and equipment (15,678) (50,707)
Collection of note receivable 32,191 29,020
Net cash provided by (used in) investing activities 16,513 (21,687)
CASH FLOWS FROM FINANCING ACTIVITIES:    
Net proceeds from issuance of common stock 8,577,861 1,780,341
Net proceeds from issuance of common stock from exercise of stock options 10,100 389,879
Net proceeds from issuance of common stock from exercise of warrants 139,700
Purchase and retirement of common stock (1,096,608)
Net cash provided by financing activities 8,727,661 1,073,612
Net increase (decrease) in cash 5,848,590 (2,418,858)
CASH, beginning of period 3,092,172 5,953,257
CASH, end of period $ 8,940,762 $ 3,534,399