XML 67 R57.htm IDEA: XBRL DOCUMENT
v3.24.2.u1

RELATED PARTY TRANSACTIONS (Details) $ in Thousands |  | 1 Months Ended | 3 Months Ended | 9 Months Ended
--- | --- | --- | --- | ---
May 11, 2023 USD ($) shares | May 31, 2023 USD ($) | Jun. 30, 2024 USD ($) | Jun. 30, 2023 USD ($) | Jun. 30, 2024 USD ($) lot | Jun. 30, 2023 USD ($) lot
Related party transactions |  |  |  |  |  |
Value of common stock issued for services | $ 90 |  |  | $ 90 |  | $ 90
Mr. Kenneth Grossman |  |  |  |  |  |
Related party transactions |  |  |  |  |  |
Expenses incurred from transactions with related parties |  | $ 100 |  |  |  |
One-time special director fee paid in cash |  | 40 |  |  |  |
Issuance of common stock for services (in shares) | shares | 22,728 |  |  |  |  |
Value of common stock issued for services | $ 60 |  |  |  |  |
Mr. Douglas Woodrum |  |  |  |  |  |
Related party transactions |  |  |  |  |  |
Expenses incurred from transactions with related parties |  | 50 |  |  |  |
One-time special director fee paid in cash |  | $ 20 |  |  |  |
Issuance of common stock for services (in shares) | shares | 11,363 |  |  |  |  |
Value of common stock issued for services | $ 30 |  |  |  |  |
Kaupulehu Developments |  |  |  |  |  |
Related party transactions |  |  |  |  |  |
Revenues - sale of interest in leasehold land |  |  | $ 0 | $ 0 | $ 500 | 265
Kaupulehu Developments | KD Kaupulehu, LLLP | Increment I |  |  |  |  |  |
Related party transactions |  |  |  |  |  |
Revenues - sale of interest in leasehold land |  |  |  |  | $ 500 | $ 265
Number of single family lots sold | lot |  |  |  |  | 2 | 1
KD Acquisition, LLLP |  |  |  |  |  |
Related party transactions |  |  |  |  |  |
Ownership interest acquired |  |  | 19.60% |  | 19.60% |
KD Acquisition II, LP | Barnwell Industries Inc |  |  |  |  |  |
Related party transactions |  |  |  |  |  |
Ownership interest acquired |  |  | 10.80% |  | 10.80% |

X
- Definition Represents the number of single-family lots sold. + References No definition available. + Details
Name: | brn_NumberOfSingleFamilyLotsSold
Namespace Prefix: | brn_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Revenue from the sale of interest in leasehold land. + References No definition available. + Details
Name: | brn_RevenuefromSaleofInterestinLeaseholdLand
Namespace Prefix: | brn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Costs of sales and operating expenses for the period incurred from transactions with related parties. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483621/220-10-S99-2 + Details
Name: | us-gaap_CostsAndExpensesRelatedParty
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 323 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481687/323-10-50-3 + Details
Name: | us-gaap_EquityMethodInvestmentOwnershipPercentage
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of cash outflow for fees classified as other. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 25 -Subparagraph (g) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-25 + Details
Name: | us-gaap_PaymentsForFees
Namespace Prefix: | us-gaap_
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 Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-07(2)(c)(2)(i)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483575/946-220-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-07(2)(c)(2)(ii)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483575/946-220-S99-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-07(2)(g)(3)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483575/946-220-S99-1 + Details
Name: | us-gaap_RelatedPartyTransactionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of shares issued in lieu of cash for services contributed to the entity. Number of shares includes, but is not limited to, shares issued for services contributed by vendors and founders. + References No definition available. + Details
Name: | us-gaap_StockIssuedDuringPeriodSharesIssuedForServices
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Value of stock issued in lieu of cash for services contributed to the entity. Value of the stock issued includes, but is not limited to, services contributed by vendors and founders. + References No definition available. + Details
Name: | us-gaap_StockIssuedDuringPeriodValueIssuedForServices
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=brn_Mr.KennethGrossmanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=brn_Mr.DouglasWoodrumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=brn_KaupulehuDevelopmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=brn_KDKaupulehuLLLPMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | brn_IncrementAxis=brn_IncrementIMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=brn_KDAcquisitionLLLPMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=brn_KDAcquisitionIILPMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=brn_BarnwellIndustriesIncMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |