CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Operating expenses
Cost of product revenue	$ 491	$ 456	$ 836	$ 911
Research and development	4,277	2,451	9,052	7,396
Sales and marketing	1,573	2,144	3,457	4,979
General and administrative	4,437	4,349	9,250	10,493
Total operating expenses	10,778	9,400	22,595	23,779
Loss from operations	(8,102)	(6,479)	(17,947)	(18,233)
Interest expense	(3,453)	(2,536)	(5,634)	(7,358)
Loss on extinguishment of debt			0	(2,187)
Change in fair value of financial instruments and hybrid instrument designated at Fair Value Option	(762)	709	(1,121)	477
Other income (expense)	26	(1,084)	14	(253)
Loss before income tax	(12,291)	(9,390)	(24,688)	(27,554)
Income tax expense
Net loss	(12,291)	(9,390)	(24,688)	(27,554)
Net loss attributable to noncontrolling interest	(141)	(23)	(336)	(201)
Net loss attributable to common stockholders	$ (12,150)	$ (9,367)	$ (24,352)	$ (27,353)
Net loss per share, basic	$ (0.69)	$ (8.77)	$ (2.14)	$ (29.51)
Net loss per share, diluted	$ (0.42)	$ (8.77)	$ (1.42)	$ (29.51)
Weighted-average common shares outstanding, basic	17,631,514	1,068,267	11,405,153	927,040
Weighted-average common shares outstanding, diluted	29,109,440	1,068,267	17,175,861	927,040
Product revenue
Revenue
Total revenue	$ 2,676	$ 2,921	$ 4,648	$ 5,546