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REVENUE FROM CONTRACTS WITH CUSTOMERS REVENUE FROM CONTRACT WITH CUSTOMERS (Tables) | 12 Months Ended
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Sep. 30, 2021
Revenue from Contract with Customer [Abstract] |
Summary of disaggregation of revenue | The following tables provide information about disaggregated revenue by revenue streams, reportable segments, geographical region, and timing of revenue recognition for the years ended September 30, 2021 and 2020.
|  | Year ended September 30, 2021
|  | Oil and natural gas |  | Contract drilling |  | Land investment |  | Other |  | Total
Revenue streams: |  |  |  |  |  |  |  |  |
| Oil | $ | 7,617,000 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 7,617,000 |
| Natural gas | 1,871,000 |  |  | — |  |  | — |  |  | — |  |  | 1,871,000 |
| Natural gas liquids | 766,000 |  |  | — |  |  | — |  |  | — |  |  | 766,000 |
| Drilling and pump | — |  |  | 5,809,000 |  |  | — |  |  | — |  |  | 5,809,000 |
| Contingent residual payments | — |  |  | — |  |  | 1,738,000 |  |  | — |  |  | 1,738,000 |
| Other | — |  |  | — |  |  | — |  |  | 304,000 |  |  | 304,000 |
| Total revenues before interest income | $ | 10,254,000 |  |  | $ | 5,809,000 |  |  | $ | 1,738,000 |  |  | $ | 304,000 |  |  | $ | 18,105,000 |
Geographical regions: |  |  |  |  |  |  |  |  |
| United States | $ | 118,000 |  |  | $ | 5,809,000 |  |  | $ | 1,738,000 |  |  | $ | 35,000 |  |  | $ | 7,700,000 |
| Canada | 10,136,000 |  |  | — |  |  | — |  |  | 269,000 |  |  | 10,405,000 |
| Total revenues before interest income | $ | 10,254,000 |  |  | $ | 5,809,000 |  |  | $ | 1,738,000 |  |  | $ | 304,000 |  |  | $ | 18,105,000 |
Timing of revenue recognition: |  |  |  |  |  |  |  |  |
| Goods transferred at a point in time | $ | 10,254,000 |  |  | $ | — |  |  | $ | 1,738,000 |  |  | $ | 304,000 |  |  | $ | 12,296,000 |
| Services transferred over time | — |  |  | 5,809,000 |  |  | — |  |  | — |  |  | 5,809,000 |
| Total revenues before interest income | $ | 10,254,000 |  |  | $ | 5,809,000 |  |  | $ | 1,738,000 |  |  | $ | 304,000 |  |  | $ | 18,105,000 |
|  | Year ended September 30, 2020
|  | Oil and natural gas |  | Contract drilling |  | Land investment |  | Other |  | Total
Revenue streams: |  |  |  |  |  |  |  |  |
| Oil | $ | 5,214,000 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 5,214,000 |
| Natural gas | 1,119,000 |  |  | — |  |  | — |  |  | — |  |  | 1,119,000 |
| Natural gas liquids | 360,000 |  |  | — |  |  | — |  |  | — |  |  | 360,000 |
| Drilling and pump | — |  |  | 10,994,000 |  |  | — |  |  | — |  |  | 10,994,000 |
| Contingent residual payments | — |  |  | — |  |  | 325,000 |  |  | — |  |  | 325,000 |
| Other | — |  |  | — |  |  | — |  |  | 317,000 |  |  | 317,000 |
| Total revenues before interest income | $ | 6,693,000 |  |  | $ | 10,994,000 |  |  | $ | 325,000 |  |  | $ | 317,000 |  |  | $ | 18,329,000 |
Geographical regions: |  |  |  |  |  |  |  |  |
| United States | $ | — |  |  | $ | 10,994,000 |  |  | $ | 325,000 |  |  | $ | 6,000 |  |  | $ | 11,325,000 |
| Canada | 6,693,000 |  |  | — |  |  | — |  |  | 311,000 |  |  | 7,004,000 |
| Total revenues before interest income | $ | 6,693,000 |  |  | $ | 10,994,000 |  |  | $ | 325,000 |  |  | $ | 317,000 |  |  | $ | 18,329,000 |
Timing of revenue recognition: |  |  |  |  |  |  |  |  |
| Goods transferred at a point in time | $ | 6,693,000 |  |  | $ | — |  |  | $ | 325,000 |  |  | $ | 317,000 |  |  | $ | 7,335,000 |
| Services transferred over time | — |  |  | 10,994,000 |  |  | — |  |  | — |  |  | 10,994,000 |
| Total revenues before interest income | $ | 6,693,000 |  |  | $ | 10,994,000 |  |  | $ | 325,000 |  |  | $ | 317,000 |  |  | $ | 18,329,000 |
Summary of contract with customer, asset and liability | The following table provides information about accounts receivables, contract assets and contract liabilities from contracts with customers:
| September 30,
| 2021 |  | 2020
Accounts receivables from contracts with customers | $ | 2,797,000 |  |  | $ | 1,772,000 |
Contract assets | 581,000 |  |  | 413,000 |
Contract liabilities | 455,000 |  |  | 1,097,000 |
Schedule of uninstalled materials | A summary of Barnwell's uninstalled materials is as follows:
| September 30, 2021 |  | September 30, 2020
Uninstalled materials | 226,000 |  |  | 489,000 |

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- Definition Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130551-203045 + Details
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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130545-203045 + Details
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