Consolidated Statements of Stockholders' Equity - USD ($)	Series B Preferred Shares [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	Total
Balance at Dec. 31, 2017		$ 28,037	$ 468,969,445	$ (450,852,427)	$ 18,145,055
Balance, shares at Dec. 31, 2017		28,037,501
Cumulative affect of adopting ASC 606 Adoption				6,701,950	6,701,950
Stock issued in connection with a public offering		$ 5,600,000	6,506,551		6,512,151
Stock issued in connection with a public offering, shares		5,600
Issuance of stock options/warrants for compensation and services			1,716,751		1,716,751
Issuance of stock options/warrants for compensation and services, shares
Net loss				(12,713,608)	(12,713,608)
Balance at Dec. 31, 2018		$ 33,637	477,192,747	(456,864,085)	$ 20,362,299
Balance, shares at Dec. 31, 2018		33,637,501			33,637,501
Issuance of stock options/warrants for compensation and services			2,005,102		$ 2,005,102
Net loss				(7,162,689)	(7,162,689)
Balance at Dec. 31, 2019		$ 33,637	$ 479,197,849	$ (464,026,774)	$ 15,204,712
Balance, shares at Dec. 31, 2019		33,637,501			33,637,501