Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Revenue	$ 27,371	$ 19,742
Costs and operating expenses:
Cost of product and rental revenue (exclusive of intangible assets amortization)	8,760	6,217
Research and development	3,168	1,298
Sales and marketing	4,701	2,615
General and administrative	8,893	5,950
Amortization of intangible assets	1,079
Acquisition costs	940
Change in fair value of contingent consideration	50
Total operating expenses	27,591	16,080
Operating income (loss)	(220)	3,662
Other income (expenses)
Change in fair value of warrant liability	(12,835)	(28,271)
Interest income	506	281
Interest expense	(5)	(5)
Other expenses	(13)
Loss from equity-method investment in SAVSU	(739)	(672)
Gain on acquisition of SAVSU	10,108
Total other expenses	(2,978)	(28,667)
Net loss before provision for income taxes	(3,198)	(25,005)
Income tax (benefit)	(1,541)
Net loss	(1,657)	(25,005)
Less: Preferred stock dividends and accumulated deficit impact of preferred stock redemption		(339)
Net income (loss) attributable to common stockholders	$ (1,657)	$ (25,344)
Basic and Diluted (in dollars per share)	$ (0.09)	$ (1.56)
Basic and Diluted (in shares)	19,460,299	16,256,465
Product [Member]
Revenue	$ 26,844	$ 19,742
Rental Revenue [Member]
Revenue	$ 527