Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Cash flows from operating activities:
Net loss	$ (877)	$ (2,587)	$ (4,234)	$ (7,573)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization				106
Amortization of operating lease right-of-use asset				329
Stock-based compensation			20	498
Fair value adjustment of warrants			(67)
Loss on MannKind Transaction				2,618
Changes in operating assets and liabilities:
Accounts receivable				905
Prepaid expenses and other current assets			221	101
Other long-term assets			13	122
Accounts payable			(740)	(1,542)
Accrued expenses and other current liabilities			60	(341)
Operating lease liability				(333)
Deferred revenue				(4,345)
Net cash used in operating activities			(4,727)	(9,455)
Cash flows from investing activities:
Purchases of property and equipment				(398)
Net cash used in investing activities				(398)
Net decrease in cash, cash equivalents and restricted cash			(4,727)	(9,853)
Cash, cash equivalents and restricted cash — beginning of period			9,531	20,645
Total cash, cash equivalents and restricted cash	4,804	10,792	4,804	10,792
Reconciliation of cash, cash equivalents and restricted cash to the consolidated balance sheets:
Cash and cash equivalents	4,794	10,782	4,794	10,782
Long-term restricted cash	$ 10	$ 10	10	10
Supplemental disclosures of non-cash investing and financing information:
Reduction of operating lease right-of-use asset and lease liability upon lease modification				$ 8,423