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Intangible Assets (Tables)
6 Months Ended
Mar. 31, 2020
Finite-Lived Intangible Assets, Net [Abstract]  
Schedule of 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  
Schedule of future expected amortization of intangible assets
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