CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands |
12 Months Ended |
Dec. 31, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
| Statement of Comprehensive Income [Abstract] |
|
|
|
| Net loss |
$ (4,573)
|
$ (3,447)
|
$ (1,241)
|
| Other comprehensive loss |
|
|
|
| Foreign currency translation adjustments |
93
|
(28)
|
(128)
|
| Change in unrealized gains (losses) on cash flow hedges: |
|
|
|
| Unrealized gain on cash flow hedges arising during the period |
194
|
8
|
8
|
| Reclassification to earnings of realized losses (gains) on cash flow hedges |
(143)
|
(46)
|
134
|
| Total Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax |
144
|
(66)
|
14
|
| Change in unrealized gains (losses) on marketable securities: |
|
|
|
| Unrealized gains (losses) on marketable securities, net of tax expense (benefit) |
129
|
(56)
|
(345)
|
| Gains of marketable securities reclassified into earning, net of tax expenses |
(154)
|
(135)
|
(1)
|
| Total Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax |
(25)
|
(191)
|
(346)
|
| Other comprehensive income (loss), net of tax |
119
|
(257)
|
(332)
|
| Comprehensive loss |
$ (4,454)
|
$ (3,704)
|
$ (1,573)
|