SUBSEQUENT EVENTS (Details) $ / shares in Units, $ in Thousands	1 Months Ended			3 Months Ended	12 Months Ended
	Dec. 16, 2022 USD ($) $ / shares	Nov. 30, 2022 USD ($) lot	Sep. 30, 2022 USD ($)	Dec. 31, 2022 USD ($)	Sep. 30, 2022 USD ($) lot $ / shares	Sep. 30, 2021 USD ($)	Dec. 01, 2022	Oct. 17, 2022 shares
Subsequent Event [Line Items]
Proceeds recorded as other current liabilities					$ 551	$ 0
Dividends declared, cash paid per share | $ / shares					$ 0.015
Land Development Partnerships
Subsequent Event [Line Items]
Cash distribution from equity method investment, net					$ 3,028	6,011
Drilling rigs and equipment
Subsequent Event [Line Items]
Proceeds recorded as other current liabilities			$ 551
Kaupulehu Developments
Subsequent Event [Line Items]
Revenues - sale of interest in leasehold land					$ 1,295	$ 1,738
Kaupulehu Developments | KD Kaupulehu LLLP Increment I
Subsequent Event [Line Items]
Number of single family lots sold | lot					6
Subsequent Event
Subsequent Event [Line Items]
Dividends declared, cash paid per share | $ / shares	$ 0.015
Subsequent Event | Land Development Partnerships
Subsequent Event [Line Items]
Cash distribution from equity method investment, net		$ 478
Subsequent Event | The Tax Benefits Preservation Plan
Subsequent Event [Line Items]
Number of rights for each outstanding common stock (in shares) | shares								1
Subsequent Event | Drilling rigs and equipment | Forecast
Subsequent Event [Line Items]
Gain on sale of drilling rig				$ 551
Subsequent Event | Kaupulehu Developments | KD Kaupulehu LLLP Increment I
Subsequent Event [Line Items]
Revenues - sale of interest in leasehold land		$ 265
Number of single family lots sold | lot		1
Subsequent Event | Barnwell Texas, LLP
Subsequent Event [Line Items]
Working interest in oil and gas leasehold acreage							22.30%
Working interest in oil wells							15.40%
Cash paid under the arrangements	$ 5,099
Broker's fee percent							5.00%