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Warrants (Details Textual) (USD $)
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3 Months Ended | |
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Mar. 31, 2015
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Dec. 31, 2014
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| Class of Warrant or Right [Line Items] | ||
| Class of Warrant or Right, Outstanding | 1,564,108us-gaap_ClassOfWarrantOrRightOutstanding | 1,564,108us-gaap_ClassOfWarrantOrRightOutstanding |
| Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ 4.48us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 | $ 4.48us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 |
| Shares Issued on Exercise of Warrants | 0ipwr_SharesIssuedOnExerciseOfWarrants | |
| Unvested Warrants [Member] | ||
| Class of Warrant or Right [Line Items] | ||
| Class of Warrant or Right, Outstanding |
21,000us-gaap_ClassOfWarrantOrRightOutstanding / us-gaap_StatementEquityComponentsAxis = ipwr_UnvestedWarrantsMember |
| X | ||||||||||
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- Definition
Number of shares issued on exercise of warrants. No definition available.
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- Definition
Exercise price per share or per unit of warrants or rights outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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| X | ||||||||||
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- Definition
Number of warrants or rights outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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