Condensed Statements of Changes in Stockholders' Deficit - USD ($)	Common stock [Member]	Additional paid-in capital [Member]	Accumulated deficit [Member]	Total
Balance at Dec. 31, 2018	$ 128,433	$ 103,541,291	$ (105,881,777)	$ (2,212,053)
Balance (Shares) at Dec. 31, 2018	128,432,478
Issuance of common stock - note conversions (in value)	$ 1,149	67,792	0	68,941
Issuance of common stock - note conversions (in shares)	1,149,016
Issuance of common stock - warrant exercises (in value)	$ 925	114,700	0	115,625
Issuance of common stock - warrant exercises (in shares)	925,000
Warrants issued with debt	$ 0	174,221	0	174,221
Debt discount related to beneficial conversion feature	0	174,221	0	174,221
Deemed dividend related to warrant reprice	0	82,566	(82,566)	0
Share-based compensation expense	0	54,755	0	54,755
Net loss	0	0	(332,451)	(332,451)
Balance at Mar. 31, 2019	$ 130,507	104,209,546	(106,296,794)	(1,956,741)
Balance (Shares) at Mar. 31, 2019	130,506,494
Balance at Dec. 31, 2018	$ 128,433	103,541,291	(105,881,777)	(2,212,053)
Balance (Shares) at Dec. 31, 2018	128,432,478
Net loss				(1,054,806)
Balance at Sep. 30, 2019	$ 131,507	104,847,136	(107,019,149)	(2,040,506)
Balance (Shares) at Sep. 30, 2019	131,506,494
Balance at Mar. 31, 2019	$ 130,507	104,209,546	(106,296,794)	(1,956,741)
Balance (Shares) at Mar. 31, 2019	130,506,494
Issuance of common stock - warrant exercises (in value)	$ 1,000	124,000	0	125,000
Issuance of common stock - warrant exercises (in shares)	1,000,000
Warrants issued with debt	$ 0	174,222	0	174,222
Debt discount related to beneficial conversion feature	0	174,222	0	174,222
Share-based compensation expense	0	115,307	0	115,307
Net loss	0	0	(388,448)	(388,448)
Balance at Jun. 30, 2019	$ 131,507	104,797,297	(106,685,242)	(1,756,438)
Balance (Shares) at Jun. 30, 2019	131,506,494
Share-based compensation expense	$ 0	49,839	0	49,839
Net loss	0	0	(333,907)	(333,907)
Balance at Sep. 30, 2019	$ 131,507	104,847,136	(107,019,149)	(2,040,506)
Balance (Shares) at Sep. 30, 2019	131,506,494
Balance at Dec. 31, 2019	$ 131,507	104,896,975	(107,368,590)	(2,340,108)
Balance (Shares) at Dec. 31, 2019	131,506,494
Issuance of common stock - warrant exercises (in value)	$ 1,935	239,976	0	241,911
Issuance of common stock - warrant exercises (in shares)	1,935,294
Share-based compensation expense	$ 0	49,839	0	49,839
Net loss	0	0	(386,733)	(386,733)
Balance at Mar. 31, 2020	$ 133,442	105,186,790	(107,755,323)	(2,435,091)
Balance (Shares) at Mar. 31, 2020	133,441,788
Balance at Dec. 31, 2019	$ 131,507	104,896,975	(107,368,590)	(2,340,108)
Balance (Shares) at Dec. 31, 2019	131,506,494
Net loss				(1,155,493)
Balance at Sep. 30, 2020	$ 133,442	105,407,209	(108,524,083)	(2,983,432)
Balance (Shares) at Sep. 30, 2020	133,441,788
Balance at Mar. 31, 2020	$ 133,442	105,186,790	(107,755,323)	(2,435,091)
Balance (Shares) at Mar. 31, 2020	133,441,788
Share-based compensation expense	$ 0	146,433	0	146,433
Net loss	0	0	(436,161)	(436,161)
Balance at Jun. 30, 2020	$ 133,442	105,333,223	(108,191,484)	(2,724,819)
Balance (Shares) at Jun. 30, 2020	133,441,788
Share-based compensation expense	$ 0	73,986	0	73,986
Net loss	0	0	(332,599)	(332,599)
Balance at Sep. 30, 2020	$ 133,442	$ 105,407,209	$ (108,524,083)	$ (2,983,432)
Balance (Shares) at Sep. 30, 2020	133,441,788