XML 66 R56.htm IDEA: XBRL DOCUMENT
v3.22.4

STOCKHOLDERS' EQUITY - AT THE MARKET OFFERING (Details) - USD ($) $ / shares in Units, $ in Millions | 3 Months Ended |  |  |
--- | --- | --- | --- | ---
Dec. 31, 2022 | Oct. 17, 2022 | Sep. 30, 2022 | Mar. 16, 2021
Sale of Stock [Line Items] |  |  |  |
Dividends declared, cash paid per share | $ 0.015 |  |  |
Common stock, par value (in dollars per share) | $ 0.50 |  | $ 0.50 |
At The Market Offering |  |  |  |
Sale of Stock [Line Items] |  |  |  |
Common stock, par value (in dollars per share) |  |  |  | $ 0.50
Sale of stock, maximum aggregate sales price | $ 25 |  |  |
The Tax Benefits Preservation Plan |  |  |  |
Sale of Stock [Line Items] |  |  |  |
Number of rights for each outstanding common stock (in shares) |  | 1 |  |

X
- Definition Sale of Stock, Aggregate Sales Price + References No definition available. + Details
Name: | brn_SaleOfStockMaximumAggregateSalesPrice
Namespace Prefix: | brn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI https://asc.fasb.org/extlink&oid=126973232&loc=d3e21475-112644 + Details
Name: | us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Aggregate dividends paid during the period for each share of common stock outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI https://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 + Details
Name: | us-gaap_CommonStockDividendsPerShareCashPaid
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Face amount or stated value per share of common stock. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_CommonStockParOrStatedValuePerShare
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | instant

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 No definition available. + Details
Name: | us-gaap_SubsidiarySaleOfStockLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_SubsidiarySaleOfStockAxis=brn_AtTheMarketOfferingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=brn_TheTaxBenefitsPreservationPlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |