Condensed Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Operating activities:
Net income (Loss)	$ (10,014)	$ 3,069
Adjustments to reconcile net (loss) income to cash (used in) provided by operating activities:
Depreciation and amortization expense	28	5
Accretion of discount and amortization of premium on investments, net	(119)	49
Stock-based compensation	1,167	1,138
(Gain) Loss on change in fair value of warrant liability	0	(445)
Gain on change in fair value of earn-out liability	0	(10,757)
Other expense related to equity purchase agreement	15	1,131
Non-cash interest expense	76	93
Changes in operating assets and liabilities:
Prepaid expenses and other current assets	(180)	637
Other non-current assets	48	48
Accounts payable	2,225	(223)
Accrued expenses	(886)	(1,241)
Operating lease right-of-use assets and liabilities, net	3	(1)
Net cash used in operating activities	(7,637)	(6,497)
Investing activities:
Purchases of fixed assets	(13)	(57)
Maturities of short-term investments	12,000	0
Purchases of short-term investments	(2,960)	(28,217)
Net cash (used in) provided by investing activities	9,027	(28,274)
Financing activities:
Payment of debt issuance costs	0	(37)
Proceeds from exercise of common stock options	0	3
Proceeds from issuance of common stock, net of issuance costs	212	2,767
Net cash provided by financing activities	212	2,733
Net (decrease) increase in cash and cash equivalents	1,602	(32,038)
Cash and cash equivalents at beginning of period	8,708	49,702
Cash and cash equivalents at end of period	10,310	17,664
Supplemental disclosure of cash flow information
Interest paid	589	422
Issuance of commitment shares	0	862
Accrued issuance costs	170	107
Purchases of Fixed Assets Included In Accounts Payable And Accrued Expenses	$ 0	$ 7