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Warrants (Details Textual) (USD $)
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12 Months Ended |
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Dec. 31, 2014
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Dec. 31, 2013
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| Class of Warrant or Right [Line Items] |
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| Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares |
30,000us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares
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| Warrant [Member] |
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| Class of Warrant or Right [Line Items] |
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| Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period |
95,814us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_WarrantMember
|
301,273us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_WarrantMember
|
| Common Stock [Member] |
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| Class of Warrant or Right [Line Items] |
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| Stock Issued During Period Shares Cashless Warrants Exercised |
|
301,213ipwr_StockIssuedDuringPeriodSharesCashlessWarrantsExercised
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
|
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period |
77,364us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
|
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| Warrants Issued For Promissory Note Holders [Member] |
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| Class of Warrant or Right [Line Items] |
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| Warrants To Purchase Common stock |
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107,875ipwr_WarrantsToPurchaseCommonStock
/ ipwr_WarrantTypeAxis
= ipwr_WarrantsIssuedForPromissoryNoteHoldersMember
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| Warrants, Exercise Price |
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3.47626ipwr_WarrantsExercisePrice
/ ipwr_WarrantTypeAxis
= ipwr_WarrantsIssuedForPromissoryNoteHoldersMember
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| Warrants Issued During Period, Fair Value |
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379,000ipwr_WarrantsIssuedDuringPeriodFairValue
/ ipwr_WarrantTypeAxis
= ipwr_WarrantsIssuedForPromissoryNoteHoldersMember
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| Warrants, Interest Expense |
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251,800ipwr_WarrantsInterestExpense
/ ipwr_WarrantTypeAxis
= ipwr_WarrantsIssuedForPromissoryNoteHoldersMember
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| Warrants Issued For Promissory Note Holders [Member] | Warrant [Member] |
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| Class of Warrant or Right [Line Items] |
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| Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period |
94,376us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_WarrantMember
/ ipwr_WarrantTypeAxis
= ipwr_WarrantsIssuedForPromissoryNoteHoldersMember
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| Proceeds from Warrant Exercises |
4,972us-gaap_ProceedsFromWarrantExercises
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_WarrantMember
/ ipwr_WarrantTypeAxis
= ipwr_WarrantsIssuedForPromissoryNoteHoldersMember
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| Warrants Issued For Promissory Note Holders [Member] | Used to Cover Exercise Price [Member] |
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| Class of Warrant or Right [Line Items] |
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| Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period |
28,824us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised
/ us-gaap_StatementEquityComponentsAxis
= ipwr_UsedToCoverExercisePriceMember
/ ipwr_WarrantTypeAxis
= ipwr_WarrantsIssuedForPromissoryNoteHoldersMember
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| Warrants Issued For Promissory Note Holders [Member] | Cashless Basis Exercise [Member] | Common Stock [Member] |
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| Class of Warrant or Right [Line Items] |
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| Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period |
65,552us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
/ us-gaap_VestingAxis
= ipwr_CashlessBasisExerciseMember
/ ipwr_WarrantTypeAxis
= ipwr_WarrantsIssuedForPromissoryNoteHoldersMember
|
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| Warrants Issued For Promissory Note Holders [Member] | Cash Basis Exercise [Member] | Common Stock [Member] |
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| Class of Warrant or Right [Line Items] |
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| Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period |
1,438us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
/ us-gaap_VestingAxis
= ipwr_CashBasisExerciseMember
/ ipwr_WarrantTypeAxis
= ipwr_WarrantsIssuedForPromissoryNoteHoldersMember
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| Warrants Issued For Consulting Services [Member] |
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| Class of Warrant or Right [Line Items] |
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| Warrants To Purchase Common stock |
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84,000ipwr_WarrantsToPurchaseCommonStock
/ ipwr_WarrantTypeAxis
= ipwr_WarrantsIssuedForConsultingServicesMember
|
| Warrants, Exercise Price |
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6.25ipwr_WarrantsExercisePrice
/ ipwr_WarrantTypeAxis
= ipwr_WarrantsIssuedForConsultingServicesMember
|
| Warrants Issued During Period, Fair Value |
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237,719ipwr_WarrantsIssuedDuringPeriodFairValue
/ ipwr_WarrantTypeAxis
= ipwr_WarrantsIssuedForConsultingServicesMember
|
| Warrants, Interest Expense |
130,179ipwr_WarrantsInterestExpense
/ ipwr_WarrantTypeAxis
= ipwr_WarrantsIssuedForConsultingServicesMember
|
22,640ipwr_WarrantsInterestExpense
/ ipwr_WarrantTypeAxis
= ipwr_WarrantsIssuedForConsultingServicesMember
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| Warrants Issued For Consulting Services [Member] | Beginning With November 2013 [Member] |
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| Class of Warrant or Right [Line Items] |
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| Incremental Warrants Vesting, Number |
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4,000ipwr_IncrementalWarrantsVestingNumber
/ us-gaap_VestingAxis
= ipwr_BeginningWithNovember2013Member
/ ipwr_WarrantTypeAxis
= ipwr_WarrantsIssuedForConsultingServicesMember
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| Warrants Issued For Consulting Services [Member] | Beginning With November 2014 [Member] |
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| Class of Warrant or Right [Line Items] |
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| Incremental Warrants Vesting, Number |
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3,000ipwr_IncrementalWarrantsVestingNumber
/ us-gaap_VestingAxis
= ipwr_BeginningWithNovember2014Member
/ ipwr_WarrantTypeAxis
= ipwr_WarrantsIssuedForConsultingServicesMember
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| Warrants Issued For Underwriter [Member] |
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| Class of Warrant or Right [Line Items] |
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| Warrants To Purchase Common stock |
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345,000ipwr_WarrantsToPurchaseCommonStock
/ ipwr_WarrantTypeAxis
= ipwr_WarrantsIssuedForUnderwriterMember
|
| Warrants, Exercise Price |
|
6.25ipwr_WarrantsExercisePrice
/ ipwr_WarrantTypeAxis
= ipwr_WarrantsIssuedForUnderwriterMember
|
| Warrants Issued During Period, Fair Value |
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1,682,877ipwr_WarrantsIssuedDuringPeriodFairValue
/ ipwr_WarrantTypeAxis
= ipwr_WarrantsIssuedForUnderwriterMember
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| Warrants Issued For State Of Texas [Member] |
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| Class of Warrant or Right [Line Items] |
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| Stock Issued During Period Shares Cashless Warrants Exercised |
301,213ipwr_StockIssuedDuringPeriodSharesCashlessWarrantsExercised
/ ipwr_WarrantTypeAxis
= ipwr_WarrantsIssuedForStateOfTexasMember
|
301,213ipwr_StockIssuedDuringPeriodSharesCashlessWarrantsExercised
/ ipwr_WarrantTypeAxis
= ipwr_WarrantsIssuedForStateOfTexasMember
|
| Cash Payment For Fractional Share |
3.59ipwr_CashPaymentForFractionalShare
/ ipwr_WarrantTypeAxis
= ipwr_WarrantsIssuedForStateOfTexasMember
|
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| Change In Fair Value Of Warrant, Charge Amount |
404,000ipwr_ChangeInFairValueOfWarrantChargeAmount
/ ipwr_WarrantTypeAxis
= ipwr_WarrantsIssuedForStateOfTexasMember
|
404,000ipwr_ChangeInFairValueOfWarrantChargeAmount
/ ipwr_WarrantTypeAxis
= ipwr_WarrantsIssuedForStateOfTexasMember
|