Warrants issued prefunded.

No definition available.

Name:	impp_WarrantsIssuedPrefunded
Namespace Prefix:	impp_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Weighted average number of common shares issuable upon the exercise of warrants.

+ References

No definition available.

+ Details

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Namespace Prefix:	impp_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- 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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Period Type:	duration

- Definition

Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of accelerated share repurchase agreements. An accelerated share repurchase program is a combination of transactions that permits an entity to purchase a targeted number of shares immediately with the final purchase price of those shares determined by an average market price over a fixed period of time.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 260
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+ Details

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Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of call options and warrants using the treasury stock method.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 260
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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of convertible preferred stock using the if-converted method.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 260
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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

This element represents nonvested share-based payment awards that contain non-forfeitable rights to dividends or dividend equivalents (whether paid or unpaid). Basic and dilutive earnings per share are generally disclosed for such shares using the two-class method.

+ References

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+ Details

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- Details

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Namespace Prefix:
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- Details

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Namespace Prefix:
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Period Type:

- Details

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Period Type:

- Details

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- Details

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Balance Type:
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- Details

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Namespace Prefix:
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Balance Type:
Period Type:

Earnings Per Share - Additional information (Detail) - shares	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Class of Warrant or Right [Line Items]
Incremental common shares attributable to dilutive effect of accelerated share repurchase agreements	252,695	323,283	97,318
Incremental common shares attributable to participating nonvested shares with non-forfeitable dividend rights	1,477,617
Series C Preferred Stock [Member]
Class of Warrant or Right [Line Items]
Incremental shares non vested share awards		2,753,216	4,234,814
A, B, C, D, F and G warrants [Member]
Class of Warrant or Right [Line Items]
Weighted average number of common shares issuable upon the exercise of warrants	21,358,068
Class E Warrants [Member]
Class of Warrant or Right [Line Items]
Incremental common shares attributable to dilutive effect of call options and warrants	3,166,666	4,199,999
Class A, B, C and D warrants [Member]
Class of Warrant or Right [Line Items]
Weighted average number of common shares issuable upon the exercise of warrants		2,310,268
Class A, B, C, D and E warrants [Member]
Class of Warrant or Right [Line Items]
Weighted average number of common shares issuable upon the exercise of warrants			10,810,267
Pre funded warrant [Member]
Class of Warrant or Right [Line Items]
Warrants Issued Prefunded	1,100,000