Condensed Consolidated Statements of Cash Flows (unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Cash flows from operating activities:
Net income (loss)	$ (48,346)	$ 8,851
Adjustments to reconcile net income (loss) to net cash used in operating activities:
Depreciation and amortization	229	231
Reduction in the carrying amount of right-of-use assets	516	362
Impairment loss on sublease	384
Stock-based compensation expense	6,251	7,192
Amortization of premium on short-term investments	(1,483)	(97)
Non Cash Interest Expense	558	299
Change in fair value of earn-out liabilities	(3,182)	(77,892)
Changes in operating assets and liabilities:
Accounts receivable	(401)	(1)
Prepaid expenses and other current assets	1,068	(2,086)
Prepaid expenses and other long-term assets	(109)	11
Accounts payable	(1,464)	1,193
Accrued expenses and other current liabilities	(2,231)	(187)
Other long term liabilities	22	(20)
Operating lease liabilities	(609)	(431)
Deferred revenue	67	13
Net cash used in operating activities	(48,730)	(62,562)
Cash flows from investing activities:
Acquisition of property and equipment	(13)	(42)
Purchases of short-term investments	(56,444)	(81,593)
Proceeds from maturities of short-term investments	127,500	15,000
Net cash provided by (used in) investing activities	71,043	(66,635)
Cash flows from financing activities:
Proceeds from exercise of stock options		145
Proceeds from note payable		10,000
Proceeds from Business Combination, net of transaction costs paid		131,814
Taxes paid related to net share settlement of share-based awards	(111)
Repayment of principal on note payable	(2,500)
Net cash provided by (used in) financing activities	(2,611)	141,959
Net increase in cash, cash equivalents, and restricted cash	19,702	12,762
Cash, cash equivalents, and restricted cash at beginning of period	54,402	77,204
Cash, cash equivalents, and restricted cash at end of period	74,104	89,966
Supplementary Information:
Cash paid for income taxes	16
Cash paid for interest	1,298	453
Noncash investing and financing activities:
Purchase of property and equipment included in accounts payable and accrued expenses	$ 3
Redemption value of Series D preferred stock		3,692
Dividends accrued for Series D preferred stock		7,383
Recognition of earn-out liabilities		87,512
Net liabilities assumed in Business Combination		$ 950