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Consolidated Statements of Cash Flows (Unaudited) - USD ($)
6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
CASH FLOWS FROM OPERATING ACTIVITIES:    
Net loss $ (3,918,607) $ (2,516,086)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and amortization 223,170 571,023
Noncash stock-based compensation expense 667,694 267,408
Deferred rent (17,559) (13,039)
Changes in assets and liabilities:    
Decrease (Increase) in accounts receivable 342,449 (913,521)
(Increase) in inventory (2,245) (20,094)
(Increase) in other current assets (125,282) (112,595)
(Increase) Decrease in other assets (1,498) 12,207
Increase in accounts payable, accrued expenses 166,096 534,033
Increase (Decrease) in deferred revenue 41,157 (304,580)
Net cash used in operating activities (2,624,625) (2,495,244)
CASH FLOWS FROM INVESTING ACTIVITIES:    
Purchases of patents (125,000)
Purchases of property and equipment (39,316) (71,828)
Collection on note receivable 19,249
Net cash used in investing activities (20,067) (196,828)
CASH FLOWS FROM FINANCING ACTIVITIES:    
Net proceeds from issuance of common stock 1,780,800 7,630,757
Purchase and retirement of common stock (1,096,608)
Net proceeds from issuance of common stock from the exercise of stock options 977
Payments on note payable (2,464)
Net cash provided by financing activities 684,192 7,629,270
Net (decrease) increase in cash and cash equivalents (1,960,500) 4,937,198
CASH AND CASH EQUIVALENTS, beginning of period 5,953,257 2,966,350
CASH AND CASH EQUIVALENTS, end of period 3,992,757 7,903,548
Supplemental disclosure of noncash investing and financing activities:    
Financing of property and equipment $ 31,078