BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details)	12 Months Ended
	Sep. 30, 2024 USD ($) segment	Sep. 30, 2023 USD ($)	Sep. 13, 2024 USD ($)
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Foreign exchange losses	$ (831,000)	$ 1,682,000
Number of reportable segments | segment	2
Period of notice for termination of fee-for-service contracts	30 days
Cash and cash equivalents	$ 21,432,000	35,492,000
Credit Agreement
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Line of credit borrowing capacity			$ 22,550,000
Cap on reinvestment of funds from extraordinary receipts and asset sales and casualty events			$ 5,000,000
Noncompliance grace period subsequent to quarter end			55 days
Noncompliance grace period subsequent to fiscal year end			100 days
Revolving Credit Facility
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Line of credit borrowing capacity	15,000,000
Line of credit outstanding	$ 0	$ 0
Cost of products and services | Vendor concentration risk | RMS
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Concentration of risk percentage	11.90%	10.00%
Revenue from Contract with Customer Benchmark | Customer concentration risk | RMS | One customer
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Concentration of risk percentage	15.90%	22.00%
Minimum
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Operating lease, extension term of real estate leases	1 year
Finance lease, extension term of real estate leases	1 year
Maximum
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Operating lease, extension term of real estate leases	5 years
Finance lease, extension term of real estate leases	5 years