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Basis of Presentation and Summary of Significant Accounting Policies - Timing of Revenue Recognition and Geographic Areas (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Sep. 30, 2024 | Sep. 30, 2023
Timing of Revenue Recognition and Geographic Areas |  |
Revenues | $ 55,219 | $ 64,647
United States |  |
Timing of Revenue Recognition and Geographic Areas |  |
Revenues | 48,784 | 57,781
Americas (excluding United States) |  |
Timing of Revenue Recognition and Geographic Areas |  |
Revenues | 4,524 | 4,982
Europe |  |
Timing of Revenue Recognition and Geographic Areas |  |
Revenues | 1,125 | 1,429
Asia-Pacific |  |
Timing of Revenue Recognition and Geographic Areas |  |
Revenues | 786 | 455
HPP |  |
Timing of Revenue Recognition and Geographic Areas |  |
Revenues | 4,154 | 6,873
HPP | United States |  |
Timing of Revenue Recognition and Geographic Areas |  |
Revenues | 3,098 | 6,069
HPP | Americas (excluding United States) |  |
Timing of Revenue Recognition and Geographic Areas |  |
Revenues | 714 | 110
HPP | Europe |  |
Timing of Revenue Recognition and Geographic Areas |  |
Revenues | 6 | 335
HPP | Asia-Pacific |  |
Timing of Revenue Recognition and Geographic Areas |  |
Revenues | 336 | 359
TS |  |
Timing of Revenue Recognition and Geographic Areas |  |
Revenues | 51,065 | 57,774
TS | United States |  |
Timing of Revenue Recognition and Geographic Areas |  |
Revenues | 45,686 | 51,712
TS | Americas (excluding United States) |  |
Timing of Revenue Recognition and Geographic Areas |  |
Revenues | 3,810 | 4,872
TS | Europe |  |
Timing of Revenue Recognition and Geographic Areas |  |
Revenues | 1,119 | 1,094
TS | Asia-Pacific |  |
Timing of Revenue Recognition and Geographic Areas |  |
Revenues | 450 | 96
TS | United Kingdom |  |
Timing of Revenue Recognition and Geographic Areas |  |
Revenues | 854 | 1,022
TS | United Kingdom | United States |  |
Timing of Revenue Recognition and Geographic Areas |  |
Revenues | 75 | 125
TS | United Kingdom | Americas (excluding United States) |  |
Timing of Revenue Recognition and Geographic Areas |  |
Revenues |  | 13
TS | United Kingdom | Europe |  |
Timing of Revenue Recognition and Geographic Areas |  |
Revenues | 775 | 835
TS | United Kingdom | Asia-Pacific |  |
Timing of Revenue Recognition and Geographic Areas |  |
Revenues | 4 | 49
TS | U.S |  |
Timing of Revenue Recognition and Geographic Areas |  |
Revenues | 50,211 | 56,752
TS | U.S | United States |  |
Timing of Revenue Recognition and Geographic Areas |  |
Revenues | 45,611 | 51,587
TS | U.S | Americas (excluding United States) |  |
Timing of Revenue Recognition and Geographic Areas |  |
Revenues | 3,810 | 4,859
TS | U.S | Europe |  |
Timing of Revenue Recognition and Geographic Areas |  |
Revenues | 344 | 259
TS | U.S | Asia-Pacific |  |
Timing of Revenue Recognition and Geographic Areas |  |
Revenues | 446 | 47
Transferred at a point in time where CSPi is principal |  |
Timing of Revenue Recognition and Geographic Areas |  |
Revenues | 37,622 | 48,136
Transferred at a point in time where CSPi is principal | HPP |  |
Timing of Revenue Recognition and Geographic Areas |  |
Revenues | 3,098 | 6,259
Transferred at a point in time where CSPi is principal | TS |  |
Timing of Revenue Recognition and Geographic Areas |  |
Revenues | 34,524 | 41,877
Transferred at a point in time where CSPi is principal | TS | United Kingdom |  |
Timing of Revenue Recognition and Geographic Areas |  |
Revenues | 603 | 741
Transferred at a point in time where CSPi is principal | TS | U.S |  |
Timing of Revenue Recognition and Geographic Areas |  |
Revenues | 33,921 | 41,136
Transferred at a point in time where CSPi is agent |  |
Timing of Revenue Recognition and Geographic Areas |  |
Revenues | 7,107 | 6,062
Transferred at a point in time where CSPi is agent | TS |  |
Timing of Revenue Recognition and Geographic Areas |  |
Revenues | 7,107 | 6,062
Transferred at a point in time where CSPi is agent | TS | United Kingdom |  |
Timing of Revenue Recognition and Geographic Areas |  |
Revenues | 37 | 68
Transferred at a point in time where CSPi is agent | TS | U.S |  |
Timing of Revenue Recognition and Geographic Areas |  |
Revenues | 7,070 | 5,994
Transferred over time where CSPi is principal |  |
Timing of Revenue Recognition and Geographic Areas |  |
Revenues | 10,490 | 10,449
Transferred over time where CSPi is principal | HPP |  |
Timing of Revenue Recognition and Geographic Areas |  |
Revenues | 1,056 | 614
Transferred over time where CSPi is principal | TS |  |
Timing of Revenue Recognition and Geographic Areas |  |
Revenues | 9,434 | 9,835
Transferred over time where CSPi is principal | TS | United Kingdom |  |
Timing of Revenue Recognition and Geographic Areas |  |
Revenues | 214 | 213
Transferred over time where CSPi is principal | TS | U.S |  |
Timing of Revenue Recognition and Geographic Areas |  |
Revenues | $ 9,220 | $ 9,621

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