Common Stock and Warrants. (Tables)

12 Months Ended

Dec. 31, 2020

Stockholders' Equity Note [Abstract]

Schedule of warrant activity

	Number of Shares			Price per Share		Weighted Average Exercise Price
Balance at December 31, 2018		—		$	—	$	—
Warrants issued		5,500		$	1.00	$	1.00
Balance at December 31, 2019		5,500		$	1.00	$	1.00
Warrants exercised		(5,500	)	$	1.00	$	1.00
Pre-funded warrants issued		3,825		$	0.00	$	0.00
Pre-funded warrants exercised		(3,825	)	$	0.00	$	0.00
Series A warrants issued		8,900		$	9.76	$	9.76
Balance at December 31, 2020		8,900		$	9.76	$	9.76