Shareholders' Equity (Details 5) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Non-cash share-based compensation expense	$ 633	$ 1,819
Cost of revenues [Member]
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Non-cash share-based compensation expense	7	7
Research and development, net [Member]
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Non-cash share-based compensation expense	124	203
Sales and marketing [Member]
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Non-cash share-based compensation expense	126	300
General and administrative [Member]
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Non-cash share-based compensation expense	$ 376	$ 1,309