Annual report pursuant to Section 13 and 15(d)

Consolidated Statements of Cash Flows

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Operating activities
Net loss	$ (31,544)	$ (41,658)
Adjustments to reconcile net loss used in operating activities:
Stock-based compensation	3,477	7,554
Depreciation and amortization	158	166
Accretion of debt discount	1,828	1,389
Allowance for other long-term asset	0	1,000
Deferred taxes	14	28
Change in fair value of derivative liability	720	4,830
Goodwill impairment	3,907	0
Changes in assets and liabilities:
Accounts receivable, net	0	1,060
Other receivables	1,783	1,820
Inventory, net	20	18
Prepaid expenses and other assets	447	1,082
Lease incentive	158
Accounts payable	(2,436)	(487)
Deferred revenue	(88)	88
Accrued expenses and other liabilities, excluding lease liability	(9,048)	(3,632)
Lease liability, net	(76)	(9)
Net cash used in operating activities	(30,680)	(26,751)
Investing activities
Leasehold improvements	(158)	0
Disposal of property and equipment	25	0
Purchase of property and equipment	0	(95)
Net cash used in investing activities	(133)	(95)
Financing activities
Proceeds from sale of common stock pursuant to ATM Program, net	32,470	34
Proceeds from issuance of common stock in underwritten public offering, net	13,749	(14,806)
Principal payments on Notes	(21,244)	0
Proceeds from issuance of common stock under employee stock purchase plan	67	73
Net cash provided by (used in) financing activities	25,042	(14,699)
Decrease in cash, cash equivalents, and restricted cash	(5,771)	(41,545)
Cash, cash equivalents, and restricted cash at beginning of period	13,318	54,863
Cash, cash equivalents, and restricted cash at end of period	7,547	13,318
Supplemental disclosures of cash flow information
Cash paid for interest	1,925	2,931
Supplemental disclosures of non-cash activities
Fair value of common stock retired in exchange for issuance of pre-funded warrants	3,640	0
Cash and cash equivalents	7,415	13,172
Restricted cash, current	1	15
Restricted cash, non-current	131	131
Total cash, cash equivalents and restricted cash	$ 7,547	$ 13,318