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LOSS PER COMMON SHARE | 12 Months Ended
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Sep. 30, 2020
Earnings Per Share [Abstract] |
LOSS PER COMMON SHARE | LOSS PER COMMON SHARE Basic loss per share is computed using the weighted-average number of common shares outstanding for the period. Diluted loss per share is calculated using the treasury stock method to reflect the assumed issuance of common shares for all potentially dilutive securities, which consist of outstanding stock options. Potentially dilutive shares are excluded from the computation of diluted loss per share if their effect is anti-dilutive. There were no options outstanding at September 30, 2020. Options to purchase 318,750 shares of common stock was excluded from the computation of diluted shares for the year ended September 30, 2019, as their inclusion would have been antidilutive. 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:
| Year ended September 30, 2020
| Net Loss |  | Shares |  | Per-Share
| (Numerator) |  | (Denominator) |  | Amount
Basic net loss per share | $ | (4,756,000) |  |  | 8,277,160 |  |  | $ | (0.57) |
Effect of dilutive securities - common stock options | — |  |  | — |  |  |
Diluted net loss per share | $ | (4,756,000) |  |  | 8,277,160 |  |  | $ | (0.57) |
| Year ended September 30, 2019
| Net Loss |  | Shares |  | Per-Share
| (Numerator) |  | (Denominator) |  | Amount
Basic net loss per share | $ | (12,414,000) |  |  | 8,277,160 |  |  | $ | (1.50) |
Effect of dilutive securities - common stock options | — |  |  | — |  |  |
Diluted net loss per share | $ | (12,414,000) |  |  | 8,277,160 |  |  | $ | (1.50) |

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
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