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RELATED PARTY BALANCES AND TRANSACTIONS (Narrative) (Details) ₪ in Thousands, $ in Thousands |  | 1 Months Ended | 4 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Apr. 23, 2013 USD ($) | Mar. 31, 2016 USD ($) | Jun. 30, 2013 USD ($) | Nov. 30, 2012 USD ($) | Nov. 30, 2012 ILS (₪) | Dec. 31, 2015 USD ($) | Dec. 31, 2015 USD ($) | Dec. 31, 2014 USD ($) | Dec. 31, 2013 USD ($)
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |
Aggregate net amounts of lease expenses |  |  |  |  |  |  | $ 411 | $ 417 | $ 410
Loan proceeds from related party |  |  |  | $ 750 | ₪ 2,900 |  |  |  |
Increased in average Israeli Consumer Price Index |  |  |  |  |  |  |  |  | 1.80%
Financial expenses |  |  |  |  |  |  | $ (433) | $ (332) | $ (291)
Subsequent event [Member] |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |
Initial payment received under sales agreement |  | $ 18,000 |  |  |  |  |  |  |
Transactions With Related Parties [Member] |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |
Financial expenses |  |  |  |  |  |  |  |  | 27
Principal shareholder [Member] |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |
Joint Ownership Percentage of Principal Shareholders Which Are Principal Shareholder of Affiliates |  |  |  |  |  | 34.00% | 34.00% |  |
Aggregate purchase price | $ 3,459 |  |  |  |  |  |  |  |
Director [Member] |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |
Aggregate purchase price |  |  | $ 1,100 |  |  |  |  |  |
President and Chief Executive Officer [Member] |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |
Aggregate purchase price |  |  | $ 50 |  |  |  |  |  |
Consultant [Member] |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |
Related party expense |  |  |  |  |  |  | $ 24 | $ 39 | $ 43
Chairwoman [Member] |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |
Salary expenses |  |  |  |  |  | $ 30 |  |  |

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