Inventories

12 Months Ended

Sep. 30, 2019

Inventory Disclosure [Abstract]

Inventories

9. Inventories

Inventories consisted of the following (in thousands):

	AS OF SEPTEMBER 30,
	2019			2018
Finished goods	$	17,967		$	18,802
Work in process		3,681			7,926
Raw materials		55,781			54,290
Obsolescence reserve		(32,050	)		(30,551	)
		45,379			50,467
Less current portion		23,855			18,812
Non-current portion	$	21,524		$	31,655

Inventory obsolescence expense totaled approximately $4.6 million and $4.4 million during fiscal years 2019 and 2018, respectively.  Raw materials include semi-finished goods and component parts that totaled approximately $25.2  million and $29.0 million at September 30, 2019 and 2018, respectively.