CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Income Statement [Abstract]
Sales	$ 4,997	$ 5,629
Cost of sales	2,013	2,066
Gross profit	2,984	3,563
Other costs and expenses:
Research and development	980	730
Professional services	2,389	2,118
Salaries and related costs	3,311	3,488
Selling, general and administrative	3,796	2,957
Total other costs and expenses	10,476	9,293
Loss from operations	(7,492)	(5,730)
Interest income	216	423
Interest expense	(6)	0
Other income (losses), net	426	(295)
Total other income, net	636	128
Loss before income taxes	(6,856)	(5,602)
Income tax expense (benefit)	(4,905)	6
Net loss	$ (1,951)	$ (5,608)
Earnings per Share:
Basic and diluted (in dollars per share)	$ (0.06)	$ (0.17)