CONSOLIDATED VARIABLE INTEREST ENTITY - CARRYING VALUE OF ASSETS AND LIABILITIES (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Sep. 30, 2020
ASSETS
Cash and cash equivalents	$ 11,279	$ 4,584
Accounts and other receivables	3,069	2,176
Unproved properties	962	0
Total assets	24,435	15,182
Liabilities [Abstract]
Accounts payable	1,416	2,104
Accrued capital expenditures	909	542
Accrued operating and other expenses	1,171	1,325
Total liabilities	14,928	$ 17,135
Variable Interest Entity, Primary Beneficiary
ASSETS
Cash and cash equivalents	136
Accounts and other receivables	118
Proved properties, net	203
Unproved properties	962
Total assets	1,419
Liabilities [Abstract]
Accounts payable	3
Accrued capital expenditures	581
Accrued operating and other expenses	20
Total liabilities	$ 604