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Intangible Assets
 6 Months Ended
Mar. 31, 2020
Finite-Lived Intangible Assets, Net [Abstract]  
Intangible Assets Intangible Assets
 
The components of intangible assets are as follows:  
  March 31, 2020September 30, 2019
(dollars in thousands)Useful
Life
(in years)		Gross
Carrying
Amount		Accumulated
Amortization		Net
Carrying
Amount		Gross
Carrying
Amount		Accumulated
Amortization		Net
Carrying
Amount
Contract intangibles6$3,100  $(904) $2,196  $3,100  $(646) $2,454  
Technology52,700  (945) 1,755  2,700  (675) 2,025  
Patent and trademarks
7 - 10
2,321  (855) 1,466  2,276  (712) 1,564  
Total intangible assets $8,121  $(2,704) $5,417  $8,076  $(2,033) $6,043  
 
The remaining intangible assets balance at March 31, 2020 is expected to be amortized as follows: 

(in thousands)Expected Amortization Expense
Years ending September 30,
Remainder of 2020
$670  
20211,335  
20221,327  
20231,183  
2024645  
2025 and thereafter
257  
Total$5,417  
 
Intangible asset amortization expense was $0.3 million and $0.3 million for the three months ended March 31, 2020 and 2019, respectively and $0.7 million and $0.7 million for the six months ended March 31, 2020 and 2019, respectively.

The factors associated with the COVID-19 pandemic discussed in Note 4 also indicated that an interim long-lived asset impairment test was necessary during the three months ended March 31, 2020. For each asset group, the Company performed an undiscounted cash flow analysis that relies on significant assumptions and judgments surrounding the forecasts of future cash flows over each asset group's projection period. These forecasts of future cash flows represent the Company's best estimate using information that is currently available. However, given the significant uncertainty associated with the COVID-19 pandemic, including its extent and duration, actual results could differ significantly from those estimates.

For each asset group, the undiscounted cash flows exceeded the asset group's carrying value. No impairment charge was recorded as a result of the interim long-lived asset impairment test.