CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Cash flows from operating activities
Net comprehensive loss	$ (10,858,000)	$ (9,151,000)
Adjustments to reconcile net comprehensive loss to net cash used in operating activities:
Changes in fair value of freestanding and hybrid financial instruments designated at Fair Value Option	1,343,000	2,021,000
Depreciation and amortization expenses	479,000	501,000
Stock-based compensation, vested and released restricted stock units, and exercised stock options	301,000	581,000
Amortization of operating lease - right-of-use asset	67,000	109,000
Share in joint venture's loss	33,000	16,000
Amortization of debt issuance costs, debt discount, and non-cash interest expense		274,000
Gain on extinguishment of debt		(1,245,000)
Changes in assets and liabilities
Accounts receivable	304,000	455,000
Other receivable	(45,000)	10,000
Inventory	(209,000)	169,000
Prepaid expenses and other current assets	(489,000)	(1,136,000)
Other assets		735,000
Accounts payable	1,723,000	(1,660,000)
Accrued liabilities	141,000	531,000
Deferred revenue	(43,000)	850,000
Operating lease liability	(63,000)	(107,000)
Total cash used in operating activities	(7,316,000)	(7,047,000)
Cash flows from financing activities
Proceeds from Convertible Notes	3,448,000
Proceeds from issuance of shares in At the Market offering, net of issuance and offering costs of $17 and $42 in 2025 and 2024, respectively	1,756,000	11,340,000
Payment of Tempesta Note	(50,000)	(50,000)
Repayment of insurance financing	(188,000)	(172,000)
Proceeds from issuance of common shares in exchange for License Agreement		1,150,000
Total cash provided by financing activities	4,966,000	12,268,000
Effects of foreign exchange rate changes on assets and liabilities	36,000	(19,000)
Net increase (decrease) in cash	(2,314,000)	5,202,000
Cash at beginning of the year	8,002,000	6,469,000
Cash at end of the year	5,688,000	11,671,000
Supplemental schedule of cash flow information
Cash paid for interest	6,000	9,000
Supplemental schedule of non-cash financing and investing activities
Recognition of operating lease - right-of-use asset and operating lease liability	341,000	221,000
First Insurance Financing	114,000
Umbrella Insurance Financing		52,000
Streeterville | Preferred Stock
Supplemental schedule of non-cash financing and investing activities
Shares issued in exchange of notes payable and accrued interest		4,485,000
Streeterville | Common Stock
Supplemental schedule of non-cash financing and investing activities
Shares issued in exchange of notes payable and accrued interest	315,000	166,000
Shares issued in exchange of preferred stock		1,999,000
Irving | Common Stock
Supplemental schedule of non-cash financing and investing activities
Shares issued in exchange of notes payable and accrued interest	$ 1,210,000
Common stock issued from conversion of warrants		2,000
Iliad | Common Stock
Supplemental schedule of non-cash financing and investing activities
Shares issued in exchange of notes payable and accrued interest		$ 836,000