Shareholders' Equity (Details 5) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Non-cash share-based compensation expense	$ 869	$ 2,342
Cost of revenues [Member]
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Non-cash share-based compensation expense	9	11
Research and development, net [Member]
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Non-cash share-based compensation expense	161	330
Sales and marketing [Member]
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Non-cash share-based compensation expense	140	352
General and administrative [Member]
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Non-cash share-based compensation expense	$ 559	$ 1,649