CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY (unaudited) - USD ($)	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Gain (Loss) [Member]
Beginning Balance at Dec. 31, 2018	$ 50,783,809	$ 102,739	$ 211,265,279	$ (160,563,961)	$ (20,248)
Beginning Balance (shares) at Dec. 31, 2018		102,739,257
Issuance of stock options for services	933,411		933,411
Exercise of stock options for common stock	89,350	$ 65	89,285
Exercise of stock options for common stock (shares)		65,000
Other comprehensive gain (loss)	13,560				13,560
Net income (loss)	(644,503)			(644,503)
Ending Balance at Mar. 31, 2019	51,175,627	$ 102,804	212,287,975	(161,208,464)	(6,688)
Ending Balance (shares) at Mar. 31, 2019		102,804,257
Beginning Balance at Dec. 31, 2019	87,629,956	$ 103,397	216,205,678	(128,688,624)	9,505
Beginning Balance (shares) at Dec. 31, 2019		103,397,033
Issuance of stock options for services	1,383,672		1,383,672
Exercise of stock options for common stock	26,149	$ 12	26,137
Exercise of stock options for common stock (shares)		11,666
Amortization of restricted stock for services	135,679		135,679
Other comprehensive gain (loss)	74,246				74,246
Net income (loss)	10,426,015			10,426,015
Ending Balance at Mar. 31, 2020	$ 99,675,717	$ 103,409	$ 217,751,166	$ (118,262,609)	$ 83,751
Ending Balance (shares) at Mar. 31, 2020		103,408,699