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Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Cash flow from operating activities:    
Net loss $ (1,760,022) $ (1,341,847)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and amortization 18,167 18,574
Vested stock options and warrants 226,387 587,444
Loss from sale of marketable securities (1,837)
Changes in assets and liabilities:    
Accounts receivable (104,265) (29,587)
Inventories (7,511) 23,022
Prepaid expense and other assets 81,661 (11,645)
Accounts payable 45,847 (140,848)
Accrued expenses (226,775) (265,893)
Deferred Revenue 32,193 6,409
Net cash used in operating activities: (1,694,318) (1,156,208)
Cash flow from investing activities:    
Proceeds from sale of marketable securities 284,665
Purchase of certificates of deposit (2,593,985)
Redemption of certificates of deposit 244,971
Advance on notes receivable (42,524)
Purchase of fixed assets (32,789) (26,898)
Purchase of intangibles (24,029) (194)
Net cash provided by (used in) investing activities: 145,629 (2,336,412)
Cash flow from financing activities:    
Proceeds from exercise of warrants into common stock 55,794
Issuance of common stock 2,959,509 3,814,938
Net cash provided by (used in) financing activities 3,015,303 3,814,938
Net increase in cash and cash equivalents 1,466,614 322,318
Cash at beginning of period 766,189 1,764,090
Cash at end of period 2,232,803 2,086,408
Non-cash transactions:    
Conversion of Preferred Stock to Common Stock 6,479
Investment in Subsidiary $ 1,542,250