SUBSEQUENT EVENTS	9 Months Ended
Jun. 30, 2026
Subsequent Events [Abstract]
SUBSEQUENT EVENTS	SUBSEQUENT EVENTS On July 29, 2026, the Company's Limited-Duration Shareholder Rights Plan expired. On July 31, 2026, BHP and Kaupulehu Developments entered into a Purchase and Sale Agreement with Mr. David Johnston to sell substantially all of the Company’s remaining Hawaii real estate-related interests, including BHP’s interests in KKM and KD Kona and Kaupulehu Developments’ rights in KD II and Increment II, for an aggregate purchase price of $1,770,000 in cash, subject to customary closing conditions expected to be satisfied on or before September 15, 2026. See Note 6 “Investments” for additional information regarding this transaction.

SUBSEQUENT EVENTS

9 Months Ended

Jun. 30, 2026

On July 29, 2026, the Company's Limited-Duration Shareholder Rights Plan expired.

On July 31, 2026, BHP and Kaupulehu Developments entered into a Purchase and Sale Agreement with Mr. David Johnston to sell substantially all of the Company’s remaining Hawaii real estate-related interests, including BHP’s interests in KKM and KD Kona and Kaupulehu Developments’ rights in KD II and Increment II, for an aggregate purchase price of $1,770,000 in cash, subject to customary closing conditions expected to be satisfied on or before September 15, 2026. See Note 6 “Investments” for additional information regarding this transaction.