CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Cash flows from operating activities:
Net loss	$ (6,172)	$ (8,313)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	324	222
Amortization of debt (premium) and issuance costs	(315)	46
Amortization of right-of-use asset	59	283
Gain on debt extinguishment	(58)	0
Stock-based compensation expense	1,057	1,443
Changes in operating assets and liabilities:
Accounts receivable	879	(15)
Prepaids and other current assets	(1,363)	1,288
Insurance receivable	0	(308)
Other non-current assets	153	18
Accounts payable	716	26
Accrued liabilities	(119)	(276)
Accrued interest	127	0
Other current liabilities	0	(4)
Contract liabilities	758	115
Operating lease liability	(191)	(310)
Litigation settlement contingency	0	526
Other non-current liabilities	(30)	6
Net cash used in operating activities	(4,175)	(5,253)
Cash flows from investing activities:
Purchases of intangible assets	0	(39)
Net cash used in investing activities	0	(39)
Cash flows from financing activities:
Payment of convertible notes	(288)	0
Principal payments on loan payable	0	(2,319)
Proceeds from exercise of warrants	2,068	0
Payments for issuance costs related to exercise of warrants	(179)	0
Repurchase of Section 16 Officer shares for tax coverage exchange	(1)	(3)
Proceeds from issuance of common stock and related warrants	5,000	8,000
Payments for issuance costs related to common stock and related warrants	(599)	(829)
Net cash provided by financing activities	6,001	4,849
Increase (Decrease) in cash, cash equivalents and restricted cash	1,826	(443)
Cash, cash equivalents and restricted cash, beginning of period	1,572	2,492
Cash, cash equivalents and restricted cash, end of period	$ 3,398	$ 2,049