XML 44 R31.htm IDEA: XBRL DOCUMENT
v3.22.2.2

Note 1 - General Business (Details Textual) | 1 Months Ended
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Sep. 30, 2022
Hoosier Energy [Member] | Forecast [Member] |
Long-Term Contract for Purchase of Electric Power, Term (Year) | 3 years 6 months

X
- Definition Represents the Length of the term for the contract to purchase electric power. + References No definition available. + Details
Name: | hnrg_LongtermContractForPurchaseOfElectricPowerTerm
Namespace Prefix: | hnrg_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_CounterpartyNameAxis=hnrg_HoosierEnergyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementScenarioAxis=srt_ScenarioForecastMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |