GOODWILL AND OTHER INTANGIBLE ASSETS - Changes in the Carrying Amounts of Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Sep. 30, 2023
Goodwill
Goodwill	$ 4,683
Additions	4,683
Balance at the end of the period	4,683
Breakwater Energy Services LLC
Goodwill
Goodwill	4,683	$ 4,700
Balance at the end of the period	4,683
Water Services
Goodwill
Goodwill	1,438
Additions	1,438
Balance at the end of the period	1,438
Water Infrastructure
Goodwill
Goodwill	3,245
Additions	3,245
Balance at the end of the period	$ 3,245