STATEMENTS OF CHANGES IN PREFERRED STOCK AND STOCKHOLDERS' Equity (DEFICIT) (Parenthetical) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Issuance of common stock, commissions and expenses			$ 2,898,000
Common stock issuance cost			$ 2,898,000
Market Offering [Member]
Issuance of common stock, commissions and expenses	$ 400,000	$ 100,000
Common stock issuance cost	400,000	100,000
Warrant [Member]
Issuance of common stock, commissions and expenses		1,100,000
Common stock issuance cost		$ 1,100,000
Public Offering [Member]
Issuance of common stock, commissions and expenses	5,900
Common stock issuance cost	$ 5,900