Statements of Cash Flows - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Cash flows from operating activities
Net (loss) income	$ (5,811,634)	$ 22,039,472
Adjustments to reconcile net (loss) income to net cash used in operating activities
Stock-based compensation and warrant modification	27,555	119,623
Depreciation and amortization	365,050	300,884
Issuance of common stock for services	60,000	60,000
Derivative loss (gain) (Note 4)	3,159,532	(25,614,305)
Changes in operating assets and liabilities
Increase in prepaid expenses and other	(180,124)	(152,766)
Decrease in accounts payable and accrued expenses	(46,128)	(292,581)
Decrease in lease liability (Note 5)	(55,955)	(13,540)
Increase (decrease) in accrued compensation	41,486	(50,812)
Net cash used in operating activities	(2,440,218)	(3,604,025)
Cash flows used in investing activities
Purchase of fixed assets	(5,104)	(188,548)
Net cash used in investing activities	(5,104)	(188,548)
Cash flows from financing activities
Proceeds from option and warrant exercises	20,000	3,100,978
Net cash provided by financing activities	20,000	3,100,978
Net change in cash and cash equivalents	(2,425,322)	(691,595)
Cash and cash equivalents at beginning of period	7,585,392	8,209,071
Cash and cash equivalents at end of period	5,160,070	7,517,476
Non-cash transactions:
Lease liability arising from obtaining right-of-use asset (Note 5)	1,704,153	0
Initial recognition of right-of-use asset (Note 5)	$ 1,167,821	$ 0