4. FINANCIAL INSTRUMENTS (Details)	12 Months Ended
	Dec. 31, 2020 USD ($)
Adjusted Cost	$ 41,012,080
Unrealized Gains	14,849
Unrealized Losses	0
Market Value	41,026,929
Money Market Funds
Adjusted Cost	6,034,757
Unrealized Gains	0
Unrealized Losses	0
Market Value	6,034,757
U.S. Treasury securities considered cash equivalents
Adjusted Cost	9,997,812
Unrealized Gains	0
Unrealized Losses	0
Market Value	9,997,812
U.S. Treasury securities in short-term investments
Adjusted Cost	24,979,511
Unrealized Gains	14,849
Unrealized Losses	0
Market Value	$ 24,994,360