NATURE OF OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Summary of Property and Equipment (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Sep. 30, 2023
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	$ 9,042	$ 10,607
Less: accumulated depreciation and amortization	(6,478)	(7,778)
Total property and equipment, net	2,564	2,829
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	1,195	2,612
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	2,797	3,657
Capitalized software development costs
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	4,343	3,610
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	$ 707	$ 728