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SIGNIFICANT ACCOUNTING POLICIES (Narrative) (Details) - ₪ / shares | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016
Inventories |  |
Short term bank deposit average interest rate | 0.60% | 0.60%
Earnings Per Share, Basic and Diluted [Abstract] |  |
Ordinary shares, par value per share | ₪ 0.9 | ₪ 0.9
Buildings and leasehold improvements [Member] | Minimum [Member] |  |
Property, plant and equipment |  |
Estimated useful lives, years | 7 years |
Buildings and leasehold improvements [Member] | Maximum [Member] |  |
Property, plant and equipment |  |
Estimated useful lives, years | 39 years |
Machinery and Equipment [Member] | Minimum [Member] |  |
Property, plant and equipment |  |
Estimated useful lives, years | 3 years |
Machinery and Equipment [Member] | Maximum [Member] |  |
Property, plant and equipment |  |
Estimated useful lives, years | 17 years |
Motor Vehicles [Member] | Minimum [Member] |  |
Property, plant and equipment |  |
Estimated useful lives, years | 6 years |
Motor Vehicles [Member] | Maximum [Member] |  |
Property, plant and equipment |  |
Estimated useful lives, years | 7 years |
Office Furniture and Equipment [Member] | Minimum [Member] |  |
Property, plant and equipment |  |
Estimated useful lives, years | 3 years |
Office Furniture and Equipment [Member] | Maximum [Member] |  |
Property, plant and equipment |  |
Estimated useful lives, years | 17 years |
Software [Member] | Minimum [Member] |  |
Property, plant and equipment |  |
Estimated useful lives, years | 3 years |
Software [Member] | Maximum [Member] |  |
Property, plant and equipment |  |
Estimated useful lives, years | 5 years |

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- Definition The interest rate for investments that have an interest rate. For fixed rate investments, this indicates the fixed interest rate. If the investment has a variable interest rate, the rate stated here may be the rate that is currently relevant. In this case the "Investment, Interest Rate is Current Rate for Variable Rate Investment Flag", "Investment, Interest Rate is Discount Rate at Purchase Flag", "Investment, Interest Rate Reflects Current Yield Flag" should be used. If one of these flags are not appropriate to explain the interest rate that is indicated, then a new flag should be added or an explanation should be included in "Investment, Additional Information". + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 12 -Sentence Column A + Details
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- Definition Face amount or stated value per share of common stock. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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