CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Cash flows from operating activities
Net comprehensive loss	$ (9,151,000)	$ (12,629,000)
Adjustments to reconcile net loss and comprehensive loss to net cash used in operating activities:
Change in fair value of freestanding and hybrid financial instruments designated at Fair Value Option	2,021,000	359,000
Stock-based compensation, vested and released restricted stock units and exercised stock options	581,000	480,000
Depreciation and amortization expenses	501,000	504,000
Amortization of debt issuance costs, debt discount, and non-cash interest expense	274,000	1,276,000
Amortization of operating lease - right-of-use-asset	109,000	47,000
Share in joint venture's loss	16,000	31,000
Gain on extinguishment of debt	(1,245,000)
Shares issued in exchange for services	0	166,000
Changes in assets and liabilities
Accounts receivable	455,000	892,000
Other receivable	10,000	138,000
Inventory	169,000	(1,660,000)
Prepaid expenses and other current assets	(1,136,000)	(160,000)
Other assets	735,000	(18,000)
Accounts payable	(1,660,000)	(134,000)
Accrued liabilities	531,000	816,000
Deferred revenue	850,000
Operating lease liability	(107,000)	(53,000)
Total cash used in operating activities	(7,047,000)	(9,945,000)
Cash flows from financing activities
Proceeds from issuance of shares in At the Market offering, net of issuance and offering costs of $42 and $30 in 2024 and 2023, respectively	11,340,000	17,865,000
Proceeds from issuance of common shares in exchange of License Agreement	1,150,000
Investment from non-controlling interest	0	1,232,000
Payment of Tempesta Note	(50,000)	(50,000)
Repayment of insurance financing	(172,000)	(236,000)
Total cash provided by financing activities	12,268,000	18,811,000
Effects of foreign exchange rate changes on assets and liabilities	(19,000)	32,000
Net increase in cash	5,202,000	8,898,000
Cash at beginning of the year	6,469,000	5,469,000
Cash at end of the year	11,671,000	14,367,000
Supplemental schedule of cash flow information
Cash paid for interest	9,000	6,000
Supplemental schedule of non-cash financing and investing activities
Recognition of operating lease - right-of-use asset and operating lease liability	221,000	30,000
Umbrella Insurance Financing	52,000
Common stock issued from conversion of warrants	2,000
Streeterville
Supplemental schedule of non-cash financing and investing activities
Shares Issued in Exchange of Preferred Stock	1,999,000
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	166,000	627,000
Iliad | Common Stock
Supplemental schedule of non-cash financing and investing activities
Shares issued in exchange of notes payable and accrued interest	$ 836,000	$ 1,275,000