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Segments and Geographic Areas (Details 2) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
United States [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Net sales | $ 204,000 | $ 173,000 | $ 144,000
France [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Net sales | 44,000 | 44,000 | 47,000
United Kingdom [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Net sales | 36,000 | 33,000 | 31,000
Russia [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Net sales | $ 35,000 | $ 34,000 | $ 27,000

X
- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). + References No definition available. + Details
Name: | ipar_Revenues1
Namespace Prefix: | ipar_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- 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
Name: | us-gaap_EntityWideRevenueMajorCustomerLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_StatementGeographicalAxis=country_US
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=country_FR
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=country_GB
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=ipar_RussiaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |