Intangible Assets

3 Months Ended

Dec. 31, 2019

Goodwill And Intangible Assets Disclosure [Abstract]

Intangible Assets

8. Intangible Assets

Intangible assets consist principally of acquired patents and technology, customer lists and relationships, licenses and trademarks. The Company recorded amortization expense of $0.7 million for both the three months ended December 31, 2019 and 2018.

Intangible assets consisted of the following:

	December 31, 2019
(Dollars in thousands)	Weighted Average Original Life (Years)		Gross Carrying Amount		Accumulated Amortization			Net
Definite-lived intangible assets:
Customer lists and relationships		8.9	$	17,684	$	(11,177	)	$	6,507
Developed technology		11.5	$	9,562	$	(3,453	)	$	6,109
Non-compete		5.0	$	230	$	(207	)	$	23
Patents and other		16.5	$	2,321	$	(1,755	)	$	566
Subtotal				29,797		(16,592	)		13,205
Unamortized intangible assets:
Trademarks and trade names				580		—			580
Total			$	30,377	$	(16,592	)	$	13,785

	September 30, 2019
(Dollars in thousands)	Weighted Average Original Life (Years)		Gross Carrying Amount		Accumulated Amortization			Net
Definite-lived intangible assets:
Customer lists and relationships		8.9	$	17,374	$	(10,661	)	$	6,713
Developed technology		11.5		9,490		(3,196	)		6,294
Non-compete		5.0		230		(196	)		34
Patents and other		16.5		2,321		(1,716	)		605
Subtotal				29,415		(15,769	)		13,646
Unamortized intangible assets:
Trademarks and trade names				580		—			580
Total			$	29,995	$	(15,769	)	$	14,226

Based on the intangible assets in service as of December 31, 2019, estimated amortization expense for the remainder of fiscal 2020 and each of the next five fiscal years is as follows (in thousands):

Remainder of 2020	$	1,799
2021		2,319
2022		2,279
2023		1,668
2024		1,610
2025		1,553

Future amortization amounts presented above are estimates. Actual future amortization expense may be different as a result of future acquisitions, impairments, changes in amortization periods, foreign currency translation rates, or other factors.