CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	1 Months Ended	3 Months Ended		6 Months Ended		12 Months Ended
	Jan. 31, 2021	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Cash flows from operating activities
Net loss		$ (9,390,000)	$ (14,081,000)	$ (27,554,000)	$ (26,090,000)
Adjustments to reconcile net loss to net cash used in operating activities:
Amortization of debt issuance costs, debt discount, and non-cash interest expense				6,263,000	2,431,000
Stock-based compensation				2,080,000	1,667,000
Loss on extinguishment of debt, net	$ 753,000			2,187,000	753,000
Depreciation and amortization expense				984,000	861,000
Amortization of operating lease - right-of-use-asset				119,000	1,000
Shares issued upon exercise of restricted stock units				95,000
Shares issued in exchange for services				19,000
Change in fair value of financial instruments and hybrid instrument designated at Fair Value Option				(477,000)	1,074,000
Series 3 warrants inducement expense					1,462,000
ELOC warrants inducement expense			172,000		172,000
Derecognition of debt discount on settlement of receivables secured borrowing					49,000
Changes in assets and liabilities
Accounts receivable				160,000	398,000
Other receivable				(200,000)	(12,000)
Inventory				(1,845,000)	(620,000)
Prepaid expenses and other current assets				(1,190,000)	(1,263,000)
Other assets				(1,306,000)	37,000
Accounts payable				752,000	146,000
Accrued liabilities				1,885,000	2,300,000
Operating lease liability				(124,000)	19,000
Total cash used in operating activities				(18,152,000)	(16,615,000)
Cash flows from investing activity
Purchase of equipment				(74,000)	(6,000)
Purchase of intangible assets				(1,184,000)
Total cash used in investing activity				(1,258,000)	(6,000)
Cash flows from financing activities
Repayment of insurance financing				(118,000)	(233,000)
Proceeds from issuance of notes payable, net of issuance costs of $50					10,975,000
Repayment of receivables secured borrowing					(1,822,000)
Payment of ELOC warrants offering costs					(35,000)
Total cash provided by financing activities				11,396,000	40,443,000
Effects of foreign exchange rate changes on assets and liabilities				(23,000)
Net increase in cash				(8,037,000)	23,822,000
Cash at beginning of period	$ 8,090,000			17,051,000	8,090,000	$ 8,090,000
Cash at end of period		$ 9,014,000	$ 31,912,000	9,014,000	31,912,000	$ 17,051,000
Supplemental schedule of cash flow information
Cash paid for interest				11,000	8,000
Supplemental schedule of non-cash financing and investing activities
Shares issued to Iliad in exchange of notes payable and accrued interest				4,233,000	2,982,000
Shares issued on exercise of Series 3 warrants					1,776,000
Insurance financing					1,183,000
Offering costs included in accounts payable and accrued liabilities					(13,000)
At The Market Offering
Cash flows from financing activities
Proceeds from issuance of shares in At the Market offering, net of issuance and offering costs of $100 and $311				11,564,000	5,365,000
Registered public offering
Cash flows from financing activities
Proceeds from issuance of shares in registered public offering, net of issuance and offering costs of $2,550					23,232,000
2019 Bridge Note Warrants
Cash flows from financing activities
Proceeds from issuance of shares on conversion of Series 1, Series 2, and 2019 Bridge Note warrants					2,034,000
Private Investment in Public Entities
Cash flows from financing activities
Proceeds from issuance of shares in PIPE financing					975,000
Series 3 warrants
Supplemental schedule of non-cash financing and investing activities
Recognition of operating lease - right-of-use asset and operating lease liability				$ 223,000	$ 1,087,000