RESTATEMENT - Consolidated Statements of Operations (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Sales	$ 5,629	$ 3,397
Cost of sales	2,066	1,185
Gross profit	3,563	2,212
Other costs and expenses:
Research and development	730	514
Professional services	2,118	506
Salaries and related costs	3,488	1,802
Selling, general and administrative	2,957	2,110
Total other costs and expenses	9,293	4,932
Loss from operations	(5,730)	(2,720)
Interest income	423	0
Other losses	(295)	0
Total other income (expense), net	128	(60)
Loss before income taxes	(5,602)	(2,780)
Income tax expense	6	11
Loss from continuing operations	$ (5,608)	$ (2,791)
Loss per share
Loss per share, Basic and Diluted (in dollars per share)	$ (0.17)	$ (0.03)
Weighted average number of shares outstanding basic and diluted (in shares)	33,343
As Originally Reported
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Sales	$ 5,823
Cost of sales	2,103
Gross profit	3,720
Other costs and expenses:
Research and development	810
Professional services	1,791
Salaries and related costs	3,221
Selling, general and administrative	3,101
Total other costs and expenses	8,923
Loss from operations	(5,203)
Interest income	423
Other losses	(25)
Total other income (expense), net	398
Loss before income taxes	(4,805)
Income tax expense	(124)
Loss from continuing operations	$ (4,681)
Loss per share
Loss per share, Basic and Diluted (in dollars per share)	$ (0.14)
Weighted average number of shares outstanding basic and diluted (in shares)	33,343
Adjustments | Material Corrections
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Sales	$ (194)
Cost of sales	(37)
Gross profit	(157)
Other costs and expenses:
Research and development	(80)
Professional services	327
Salaries and related costs	267
Selling, general and administrative	(144)
Total other costs and expenses	370
Loss from operations	(527)
Interest income	0
Other losses	(270)
Total other income (expense), net	(270)
Loss before income taxes	(797)
Income tax expense	130
Loss from continuing operations	$ (927)
Loss per share
Loss per share, Basic and Diluted (in dollars per share)	$ (0.03)
Weighted average number of shares outstanding basic and diluted (in shares)	33,343