CONDENSED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Revenue
Product and service revenue	$ 8,271	$ 6,276	$ 25,215	$ 20,840
Lease	1,524	1,472	4,844	4,286
Total revenue	9,795	7,748	30,059	25,126
Cost of revenue (exclusive of amortization)
Total cost of revenue	4,918	3,859	14,101	11,653
Operating expenses
Selling, general and administrative expenses	5,117	6,119	19,726	19,966
Research and development expenses	1,527	1,577	4,676	10,199
Amortization of intangible assets	273	276	824	872
Operating loss	(2,040)	(4,083)	(9,268)	(17,564)
Other (expense) income
Change in fair value of warrant liabilities	4,343		(1,654)
Other income, net	265	92	465	140
Net income (loss)	$ 2,568	$ (3,991)	$ (10,457)	$ (17,424)
Earnings (loss) per common share:
Basic	$ 0.13	$ (0.39)	$ (0.96)	$ (1.73)
Diluted	$ (0.23)	$ (0.39)	$ (0.96)	$ (1.73)
Weighted-average number of common shares used in calculation of earnings (loss) per share:
Basic	11,102	10,225	10,881	10,089
Diluted	11,956	10,225	10,881	10,089
Product
Revenue
Product and service revenue	$ 7,156	$ 5,486	$ 22,191	$ 18,188
Cost of revenue (exclusive of amortization)
Total cost of revenue	2,933	2,189	8,897	6,648
Service
Revenue
Product and service revenue	1,115	790	3,024	2,652
Cost of revenue (exclusive of amortization)
Total cost of revenue	1,461	1,182	3,690	3,559
Lease
Cost of revenue (exclusive of amortization)
Total cost of revenue	$ 524	$ 488	$ 1,514	$ 1,446