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Intangible Assets
 6 Months Ended
Mar. 31, 2020
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. Intangible asset amortization expense was $0.6 million and $0.7 million for the three months ended March 31, 2020 and 2019, respectively, and $1.3 million for each of the six months ended March 31, 2020 and 2019.

Intangible assets consisted of the following:

 

 

 

March 31, 2020

 

(Dollars in thousands)

 

Weighted Average Original Life (Years)

 

 

Gross

Carrying

Amount

 

 

Accumulated Amortization

 

 

Net

 

Definite-lived intangible assets:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Customer lists and relationships

 

 

8.9

 

 

$

17,460

 

 

$

(11,404

)

 

$

6,056

 

Developed technology

 

 

11.5

 

 

$

9,510

 

 

$

(3,650

)

 

$

5,860

 

Non-compete

 

 

5.0

 

 

$

230

 

 

$

(219

)

 

$

11

 

Patents and other

 

 

16.5

 

 

$

2,321

 

 

$

(1,791

)

 

$

530

 

Total definite-lived intangible assets

 

 

 

 

 

 

29,521

 

 

 

(17,064

)

 

 

12,457

 

Unamortized intangible assets:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Trademarks and trade names

 

 

 

 

 

 

580

 

 

 

—

 

 

 

580

 

Total intangible assets

 

 

 

 

 

$

30,101

 

 

$

(17,064

)

 

$

13,037

 

 

 

 

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

 

Total definite-lived intangible assets

 

 

 

 

 

 

29,415

 

 

 

(15,769

)

 

 

13,646

 

Unamortized intangible assets:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Trademarks and trade names

 

 

 

 

 

 

580

 

 

 

—

 

 

 

580

 

Total intangible assets

 

 

 

 

 

$

29,995

 

 

$

(15,769

)

 

$

14,226

 

 

Based on the intangible assets in service as of March 31, 2020, 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

 

$

1,177

 

2021

 

 

2,287

 

2022

 

 

2,247

 

2023

 

 

1,596

 

2024

 

 

1,591

 

2025

 

 

1,532

 

 

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.