Condensed Consolidated Balance Sheets (Unaudited) - USD ($)	Jun. 30, 2021	Dec. 31, 2020
Current Assets:
Cash and cash equivalents	$ 122,721,000	$ 47,089,000
Prepaid expenses	2,421,000	110,000
Total current assets	125,142,000	47,199,000
Property and equipment, net	41,000	44,000
Operating lease right-of-use asset	816,000	986,000
Other assets	2,680,000	76,000
Total assets	128,679,000	48,305,000
Current Liabilities:
Accounts payable	2,566,000	1,557,000
Accrued expenses	3,196,000	3,362,000
Operating lease liability	358,000	334,000
Current portion of long-term debt, net	833,000	1,031,000
Total current liabilities	6,953,000	6,284,000
Long-term debt, net	4,155,000	4,155,000
Operating lease liabilities, less current portion	474,000	658,000
Preferred stock warrant liability	0	106,000
Commitments and contingencies
Stockholders' equity (deficit):
Convertible preferred stock, $0.0001 par value; 10,000,000 shares authorized as of June 30, 2021; 10,248 shares issued and outstanding as of June 30, 2021	5,452,000	0
Common stock, $0.0001 par value; 400,000,000 shares authorized; 37,140,817 and 905,987 shares issued and outstanding at June 30, 2021 and December 31, 2020, respectively	4,000	1,000
Additional paid-in capital	250,957,000	4,714,000
Accumulated deficit	(139,316,000)	(50,915,000)
Total stockholders' equity (deficit)	117,097,000	(46,200,000)
Total liabilities and stockholders' equity (deficit)	128,679,000	48,305,000
Series A-1 Convertible Preferred Stock [Member]
Current Liabilities:
Convertible Preferred Stock	0	2,968,000
Series B Convertible Preferred Stock [Member]
Current Liabilities:
Convertible Preferred Stock	0	15,484,000
Series C Convertible Preferred Stock [Member]
Current Liabilities:
Convertible Preferred Stock	0	9,392,000
Series D Convertible Preferred Stock [Member]
Current Liabilities:
Convertible Preferred Stock		16,589,000
Series E Convertible Preferred Stock [Member]
Current Liabilities:
Convertible Preferred Stock	$ 0	$ 38,869,000