Consolidated Statements of Changes in Stockholders' Equity - USD ($)	Preferred Stock	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Total
Beginning balance, shares at Dec. 31, 2017	2,678,909	67,488,153
Beginning balance, amount at Dec. 31, 2017	$ 26,788	$ 674,881	$ 36,239,264	$ (26,564,324)	$ 10,376,609
Issuance of common stock to directors for services, shares		739,018
Issuance of common stock to directors for services, amount		$ 7,390	167,610		175,000
Net income (loss)				873,225	873,225
Ending balance, shares at Dec. 31, 2018	2,678,909	68,227,171
Ending balance, amount at Dec. 31, 2018	$ 26,788	$ 682,271	36,406,874	(25,691,099)	11,424,834
Issuance of common stock to chief financial officer for services, shares		200,000
Issuance of common stock to chief financial officer for services, amount		$ 2,000	134,000		136,000
Issuance of common stock to directors for services, shares		330,183
Issuance of common stock to directors for services, amount		$ 3,302	171,698		175,000
Issuance of common stock and warrants for cash, net of offering costs, shares		904,082
Issuance of common stock and warrants for cash, net of offering costs, amount		$ 9,041	395,158		404,199
Net income (loss)				(3,672,891)	(3,672,891)
Ending balance, shares at Dec. 31, 2019	2,678,909	69,661,436
Ending balance, amount at Dec. 31, 2019	$ 26,788	$ 696,614	$ 37,107,730	$ (29,363,990)	$ 8,467,142