CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Cash flows from operating activities
Net loss and comprehensive loss	$ (24,737,000)	$ (27,554,000)
Adjustments to reconcile net loss and comprehensive loss to net cash used in operating activities:
Amortization of debt issuance costs, debt discount, and non-cash interest expense	4,409,000	6,263,000
Change in fair value of financial instruments and hybrid instrument designated at Fair Value Option	1,121,000	(477,000)
Depreciation and amortization expense	1,007,000	984,000
Stock-based compensation, vested and released restricted stock units and exercised stock options	1,007,000	2,175,000
Shares issued in exchange for services	166,000	19,000
Amortization of operating lease - right-of-use-asset	165,000	119,000
Equity in loss in joint venture	37,000
Loss on extinguishment of debt	0	2,187,000
Changes in assets and liabilities
Accounts receivable	482,000	160,000
Other receivable	436,000	(200,000)
Inventory	(1,240,000)	(1,845,000)
Prepaid expenses and other current assets	(3,788,000)	(1,190,000)
Other assets	(16,000)	(1,306,000)
Accounts payable	(1,160,000)	752,000
Accrued liabilities	3,285,000	1,885,000
Operating lease liability	(175,000)	(124,000)
Total cash used in operating activities	(19,001,000)	(18,152,000)
Cash flows from investing activities
Purchase of equipment	0	(74,000)
Costs incurred in software development activities	0	(1,184,000)
Total cash used in investing activities	0	(1,258,000)
Cash flows from financing activities
Proceeds from issuance of shares in At the Market offering, net of issuance and offering costs of $177 and $100 in 2023 and 2022, respectively	19,418,000	11,564,000
Proceeds from issuance of warrants in PIPE financing, net of issuance and offering costs of $12	1,235,000
Investment from non-controlling interest	1,247,000
Proceeds from issuance of preferred stock in PIPE financing, net of issuance cost of $12	611,000
Payment of Tempesta Note	(50,000)	(50,000)
Repayment of insurance financing	(293,000)	(118,000)
Total cash provided by financing activities	22,168,000	11,396,000
Effects of foreign exchange rate changes on assets and liabilities	(9,000)	(23,000)
Net increase in cash	3,158,000	(8,037,000)
Cash at beginning of the year	5,469,000	17,051,000
Cash at end of the year	8,627,000	9,014,000
Supplemental schedule of cash flow information
Cash paid for interest	13,000	11,000
Supplemental schedule of non-cash financing and investing activities
Umbrella Insurance Financing	93,000
Recognition of operating lease - right-of-use asset and operating lease liability	30,000	223,000
First Insurance Financing	4,000
Common Stock
Supplemental schedule of non-cash financing and investing activities
Shares issued in exchange of notes payable and accrued interest	2,020,000
Streeterville | Preferred Stock
Supplemental schedule of non-cash financing and investing activities
Shares issued in exchange of notes payable and accrued interest	1,730,000
Iliad
Supplemental schedule of non-cash financing and investing activities
Warrants issued in exchange of Standstill	535,000
Iliad | Common Stock
Supplemental schedule of non-cash financing and investing activities
Shares issued in exchange of notes payable and accrued interest	1,275,000	$ 4,233,000
Irving
Supplemental schedule of non-cash financing and investing activities
Warrants issued in exchange of Standstill	1,934,000
Irving | Preferred Stock
Supplemental schedule of non-cash financing and investing activities
Shares issued in exchange of notes payable and accrued interest	$ 758,000