CONDENSED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Revenue
Product and service revenue	$ 6,782	$ 4,577	$ 12,714	$ 9,507
Lease	1,140	470	2,251	1,446
Total revenue	7,922	5,047	14,965	10,953
Cost of revenue (exclusive of amortization)
Total cost of revenue	3,464	3,101	6,613	5,439
Operating expenses
Selling, general and administrative expenses	5,518	4,041	11,553	8,820
Research and development expenses	3,006	1,434	5,752	3,005
Amortization of intangible assets	309	314	622	631
Operating loss	(4,375)	(3,843)	(9,575)	(6,942)
Other income (expense)
Interest expense		(671)		(1,275)
Other income, net	13	17	31	34
Net loss attributable to common stockholders	$ (4,362)	$ (4,497)	$ (9,544)	$ (8,183)
Net loss per share attributable to common stockholders
Basic and diluted	$ (0.47)	$ (4.20)	$ (1.03)	$ (7.65)
Weighted-average number of shares used in calculation of net loss per share:
Basic and diluted	9,296	1,070	9,242	1,070
Product
Revenue
Product and service revenue	$ 6,056	$ 3,993	$ 11,214	$ 8,096
Cost of revenue (exclusive of amortization)
Total cost of revenue	2,366	2,262	4,456	3,468
Service
Revenue
Product and service revenue	726	584	1,500	1,411
Cost of revenue (exclusive of amortization)
Total cost of revenue	830	559	1,638	1,275
Lease
Cost of revenue (exclusive of amortization)
Total cost of revenue	$ 268	$ 280	$ 519	$ 696