Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Current assets
Cash and cash equivalents	$ 689	$ 1,828
Short-term investments		1,078
Accounts receivable, net	3,064	3,244
Inventories	5,696	5,348
Deferred cost of net revenue		600
Prepaid expenses and other	781	615
Total current assets	10,230	12,713
Property and equipment, net	1,624	2,225
Intangible assets, net	4,209	6,278
Right-of-use lease assets, net	647	1,147
Other	121	123
Total assets	16,831	22,486
Current liabilities
Accounts payable	2,583	1,844
Accrued expenses and other	689	1,817
Deferred revenue	74	332
Short-term lease liabilities	348	687
Total current liabilities	3,694	4,680
Long-term lease liabilities	379	470
Warrant liabilities	1,003	2,079
Total liabilities	5,076	7,229
Commitments and contingencies (Note 4)
Stockholders’ equity
Preferred stock, $0.01 par value; 20,000 shares authorized; none issued and outstanding
Series A, special voting preferred stock, $0.01 par value; one share authorized; and one share issued and outstanding at September 30, 2023 and December 31, 2022, respectively
Common stock, $0.001 par value; 120,000 shares authorized; 25,308 shares and 14,270 shares issued and outstanding at September 30, 2023 and December 31, 2022, respectively	25	14
Exchangeable shares, no par value; unlimited shares authorized; 5,106 shares and 9,107 shares outstanding at September 30, 2023 and December 31, 2022, respectively
Additional paid-in capital	169,184	164,865
Accumulated other comprehensive loss		(25)
Accumulated deficit	(157,454)	(149,597)
Total stockholders’ equity	11,755	15,257
Total liabilities and stockholders’ equity	$ 16,831	$ 22,486