Shareholders' Equity (Details 4) - USD ($)
$ in Thousands |
6 Months Ended |
Jun. 30, 2018 |
Jun. 30, 2017 |
| Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |
|
|
| Stock-based compensation expense |
$ 673
|
$ 561
|
| Cost of revenues [Member] |
|
|
| Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |
|
|
| Stock-based compensation expense |
76
|
59
|
| Research and development [Member] |
|
|
| Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |
|
|
| Stock-based compensation expense |
192
|
167
|
| Sales and marketing [Member] |
|
|
| Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |
|
|
| Stock-based compensation expense |
197
|
113
|
| General and administrative [Member] |
|
|
| Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |
|
|
| Stock-based compensation expense |
$ 208
|
$ 222
|