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REVISION (Schedule of Effect of Revision on Company's Previously Reported Results) (Details) $ / shares in Units, $ in Thousands | 12 Months Ended
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Dec. 31, 2015 USD ($) ITEM $ / shares | Dec. 31, 2014 USD ($) $ / shares | Dec. 31, 2013 USD ($) $ / shares
REVISION [Abstract] |  |  |  |  |
Number of segments | ITEM |  | 2 |  |  |
Balance sheets and shareholders' capital [Line Item] |  |  |  |  |
Products |  | $ 24,466 | $ 23,616 |  | $ 25,143
Services |  | 47,476 | 40,906 |  | 36,600
Gross profit |  | 13,665 | 16,204 |  | 17,808
General and administrative |  | 8,469 | 8,123 |  | 8,668
Operating income |  | 5,605 | 3,819 |  | 5,297
Net (loss) income |  | $ 5,849 | $ 1,432 |  | $ 2,802
Net income per share | $ / shares |  | $ 0.66 | $ 0.16 |  | $ 0.32
As reported previously [Member] |  |  |  |  |
Balance sheets and shareholders' capital [Line Item] |  |  |  |  |
Products |  |  | $ 23,340 |  | $ 24,892
Services |  |  | 40,286 |  | 35,987
Gross profit |  |  | 17,100 |  | 18,672
General and administrative |  |  | 9,019 |  | 9,512
Operating income |  |  | 3,819 |  | 5,317
Net (loss) income |  |  | $ 1,432 |  | $ 2,822
Net income per share | $ / shares |  |  | $ 0.16 |  | $ 0.32
Adjustment [Member] |  |  |  |  |
Balance sheets and shareholders' capital [Line Item] |  |  |  |  |
Products |  |  | $ 276 |  | $ 251
Services |  |  | 620 |  | 613
Gross profit |  |  | (896) |  | (864)
General and administrative |  |  | $ (896) |  | (844)
Operating income |  |  |  | [1] | (20)
Net (loss) income |  |  |  | [1] | $ (20)
Net income per share | $ / shares | [1] |  |  |  |
[1] | Represents an amount less than $1.

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