SEGMENT AND GEOGRAPHIC INFORMATION - GEOGRAPHIC AREAS (Details) - USD ($)	12 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Geographic information
Long-lived assets	$ 19,296,000	$ 7,878,000
Total (excluding interest income)	9,206,000	12,937,000
United States
Geographic information
Long-lived assets	4,119,000	3,765,000
Total (excluding interest income)	5,418,000	8,444,000
Canada
Geographic information
Long-lived assets	15,177,000	4,113,000
Total (excluding interest income)	$ 3,788,000	$ 4,493,000