Statements of Changes in Stockholders' Equity - USD ($)	Common Stock	Additional Paid-In Capital	Accumulated Deficit	Total
Beginning balance, shares at Dec. 31, 2018	2,906,630
Beginning balance, value at Dec. 31, 2018	$ 2,907	$ 39,392,073	$ (41,875,659)	$ (2,480,679)
Stock issued for director services - vested, shares	56,937
Stock issued for director services - vested, value	$ 56	355,875		355,931
Stock issued to escrow account - unvested, shares	44,437
Stock issued to escrow account - unvested, value	$ 44	(44)
Stock option expense		48,915		48,915
Stock issued for cash, shares	2,200,000
Stock issued for cash, value	$ 2,200	13,195,800		13,198,000
Warrants issued for cash		3,000		3,000
Cash fees related to stock offerings		(1,370,879)		(1,370,879)
Fractional shares cash payment, shares	(21)
Fractional shares, cash payment, value		(171)		(171)
Fractional shares issued from reverse stock split	187
Value of warrants and beneficial conversion features related to debt instruments		3,967		3,967
Net loss			(3,933,922)	(3,933,922)
Ending balance, shares at Dec. 31, 2019	5,208,170
Ending balance, value at Dec. 31, 2019	$ 5,207	51,628,536	(45,809,581)	5,824,162
Stock issued for director services - vested, shares	59,782
Stock issued for director services - vested, value	$ 60	444,122		444,182
Stock issued to escrow account - unvested, shares	2,126
Stock issued to escrow account - unvested, value	$ 3	(3)
Stock option expense		722,549		722,549
Proceeds from issuance of common stock, pursuant to public offering, shares	1,643,900
Proceeds from issuance of common stock, pursuant to public offering, value	$ 1,644	18,998,031		18,999,675
Warrants exercised for cash, shares	1,552,206
Warrants exercised for cash, value	$ 1,552	9,925,306		9,926,858
Warrants exercised (cashless), shares	11,304
Warrants exercised (cashless), value	$ 11	(11)
Stock option exercise (cashless), shares	2,199
Stock option exercise (cashless), value	$ 2	(2)
Stock issued for services, shares	2,700
Stock issued for services, value	$ 3	14,739		14,742
Cash fees related to stock offerings		(1,566,852)		(1,566,852)
Net loss			(5,213,025)	(5,213,025)
Ending balance, shares at Dec. 31, 2020	8,482,387
Ending balance, value at Dec. 31, 2020	$ 8,482	$ 80,166,415	$ (51,022,606)	$ 29,152,291