Goodwill and Other Intangible Assets, Net (Tables)

9 Months Ended

Jun. 30, 2019

Goodwill and Other Intangible Assets, Net

Summary of intangible assets

	Gross		Accumulated		Carrying
September 30, 2018	Amount		Amortization		Amount
Patents	$	4,030	$	(3,977)	$	53
Trademarks		3,800		—		3,800
Customer relationships		2,100		(574)		1,526
Other		291		(131)		160
	$	10,221	$	(4,682)	$	5,539

	Gross		Accumulated		Carrying
June 30, 2019	Amount		Amortization		Amount
Trademarks	$	3,800	$	—	$	3,800
Customer relationships		2,100		(682)		1,418
Other		291		(175)		116
	$	6,191	$	(857)	$	5,334

Schedule of estimated future aggregate amortization expense

Estimated future Aggregate Amortization Expense:
Year Ended September 30,
2019	$	51
2020		198
2021		179
2022		133
2023		129
Thereafter		844