NATURE OF OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Summary of Property and Equipment (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Sep. 30, 2022
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	$ 10,607	$ 9,549
Less: accumulated depreciation and amortization	(7,778)	(6,056)
Total property and equipment, net	2,829	3,493
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	2,612	2,554
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	3,657	3,384
Capitalized software development costs
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	3,610	2,902
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	$ 728	$ 709