XML 28 R14.htm IDEA: XBRL DOCUMENT v3.20.2
Goodwill and Intangible Assets
 12 Months Ended
Sep. 30, 2020
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill and Intangible Assets Goodwill and Intangible Assets
Our intangible assets consist of goodwill of $1.0 million, which is not being amortized, and purchased technology of $0.2 million, which is amortized over its estimated useful life. No impairment expense has been recorded for the last three fiscal years.
Intangible assets balances, subject to amortization, at September 30, 2020 and 2019 consisted of the following (in thousands):
 September 30, 2020September 30, 2019
Gross
Carrying
Value		Accumulated
Amortization		Net
Carrying
Value		Gross
Carrying
Value		Accumulated
Amortization		Net
Carrying
Value
Purchased technology$11,749 $(11,592)$157 $11,749 $(11,415)$334 
Amortization of intangible assets recorded for the years ended September 30, 2020, 2019 and 2018 was $0.2 million, $0.2 million and $0.2 million, respectively.
Estimated amortization expense for each of the five subsequent fiscal years is expected to be (in thousands):
Years Ended September 30,Total
2021$157