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Significant Accounting Policies (Details) | 12 Months Ended
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Dec. 31, 2017
Computers and electronic equipment [Member] | Minimum [Member] |
Property, Plant and Equipment [Line Items] |
Property and equipment, percentage | 15.00%
Computers and electronic equipment [Member] | Maximum [Member] |
Property, Plant and Equipment [Line Items] |
Property and equipment, percentage | 33.00%
Office furniture and equipment [Member] | Minimum [Member] |
Property, Plant and Equipment [Line Items] |
Property and equipment, percentage | 6.00%
Office furniture and equipment [Member] | Maximum [Member] |
Property, Plant and Equipment [Line Items] |
Property and equipment, percentage | 33.00%
Leasehold improvements [Member] |
Property, Plant and Equipment [Line Items] |
Property and equipment, description | At the shorter of the lease period or useful life of the leasehold improvement.

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- Definition Describes the periods of time over which an entity anticipates to receive utility from its property, plant and equipment (that is, the periods of time over which an entity allocates the initial cost of its property, plant and equipment). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=84158767&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 35 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=68071081&loc=d3e1205-110223 + Details
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Balance Type: | na
Period Type: | duration

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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Balance Type: | na
Period Type: | duration

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- Definition Stated as a percentage, the estimated or actual value of the asset at the end of its useful life or when it is no longer serviceable (cannot be used for its original purpose) divided by its [historical] capitalized cost. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
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- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_FurnitureAndFixturesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |