Consolidated Statements of Cash Flows (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Cash flows from operating activities:
Net loss	$ (803,897)	$ (793,767)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	48,919	44,879
Warrant market adjustment	247,590
Change in assets and liabilities:
Royalty receivables	(74,685)	(81,741)
Prepaid expenses and other current assets	(98,715)	(61,355)
Accounts payable and accrued expenses	(52,414)	53,765
Deferred revenue	651	152,316
Net cash used in operating activities	(732,551)	(685,903)
Cash flows from investing activities:
Purchases of fixed assets	(134)	(5,399)
Net cash used in investing activities	(134)	(5,399)
Cash flows from financing activities:
Net proceeds from issuances of common stock and warrants and exercise of options and warrants	1,101,782	1,250,000
Net cash provided by financing activities	1,101,782	1,250,000
Net increase in cash and cash equivalents	369,097	558,698
Cash and cash equivalents at beginning of period	2,969,416	1,737,847
Cash and cash equivalents at end of period	3,338,513	2,296,545
Supplemental disclosure of non-cash activities:
Right of use assets obtained in connection with the adoption of FASB ASC 842	$ 941,284