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Consolidated Statements of Cash Flows - USD ($)
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
CASH FLOWS FROM OPERATING ACTIVITIES:    
Net loss $ (6,020,505) $ (5,734,681)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and amortization 412,351 434,291
Stock-based compensation expense 435,679 935,899
Change in provision for doubtful accounts 74,354
Deferred rent (47,628) (38,222)
Impairment of intangible assets 1,375,422
Changes in assets and liabilities:    
(Increase) decrease in accounts receivable (150,501) 582,492
(Increase) decrease in inventory (14,774) 4,185
(Increase) decrease in other current assets (52,051) 12,889
(Increase) in other assets (5,883) (1,498)
Increase (decrease) in accounts payable and accrued expenses 339,326 (262,496)
(Decrease) in deferred revenue (175,128) (247,631)
Increase in other long-term liabilities 158,407
Net cash used in operating activities (3,745,285) (4,240,418)
CASH FLOWS FROM INVESTING activities:    
Purchases of property and equipment (37,614) (64,075)
Collection on note receivable 42,460 35,587
Net cash provided by (used in) investing activities 4,846 (28,488)
CASH FLOWS FROM FINANCING ACTIVITIES:    
Net proceeds from the issuance of common stock 8,512,861 1,777,950
Net proceeds from issuance of common stock from exercise of stock options 10,100 389,879
Net proceeds from the issuance of common stock from exercise of warrants 139,700 336,600
Purchase and retirement of common stock (1,096,608)
Withholding taxes paid on vesting of restricted stock units (4,233)
Net cash provided by financing activities  8,658,428 1,407,821
Net increase (decrease) increase in cash 4,917,989 (2,861,085)
CASH, beginning of year 3,092,172 5,953,257
CASH, end of year $ 8,010,161 $ 3,092,172