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LOSS PER COMMON SHARE (Tables) | 6 Months Ended
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Mar. 31, 2024
Earnings Per Share [Abstract] |
Reconciliations between net (loss) earnings attributable to the entity's stockholders and common shares outstanding of the basic and diluted net (loss) earnings per share computations | Reconciliations between net loss attributable to Barnwell stockholders and common shares outstanding of the basic and diluted net loss per share computations are detailed in the following tables:
| Three months ended March 31, 2024
| Net Loss (Numerator) |  | Shares (Denominator) |  | Per-Share Amount
Basic | $ | (1,772,000) |  |  | 10,019,172 |  |  | $ | (0.18) |
Effect of dilutive securities - |  |  |  |  |
common stock options and restricted stock units | — |  |  | — |  |  |
Diluted | $ | (1,772,000) |  |  | 10,019,172 |  |  | $ | (0.18) |
| Six months ended March 31, 2024
| Net Loss (Numerator) |  | Shares (Denominator) |  | Per-Share Amount
Basic | $ | (2,436,000) |  |  | 10,007,905 |  |  | $ | (0.24) |
Effect of dilutive securities - |  |  |  |  |
common stock options and restricted stock units | — |  |  | — |  |  |
Diluted | $ | (2,436,000) |  |  | 10,007,905 |  |  | $ | (0.24) |
| Three months ended March 31, 2023
| Net Loss (Numerator) |  | Shares (Denominator) |  | Per-Share Amount
Basic | $ | (1,237,000) |  |  | 9,956,687 |  |  | $ | (0.12) |
Effect of dilutive securities - |  |  |  |  |
common stock options | — |  |  | — |  |  |
Diluted | $ | (1,237,000) |  |  | 9,956,687 |  |  | $ | (0.12) |
| Six months ended March 31, 2023
| Net Loss (Numerator) |  | Shares (Denominator) |  | Per-Share Amount
Basic | $ | (148,000) |  |  | 9,956,687 |  |  | $ | (0.01) |
Effect of dilutive securities - |  |  |  |  |
common stock options | — |  |  | — |  |  |
Diluted | $ | (148,000) |  |  | 9,956,687 |  |  | $ | (0.01) |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482662/260-10-50-1 + Details
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