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Reportable Segment and Revenue Information (Tables)
 6 Months Ended
Mar. 31, 2024
Segment Reporting [Abstract]  
Schedule of Revenue by Geographic Region
Revenue is classified by timing of recognition as presented below:
Three Months Ended March 31,Six Months Ended March 31,
(in thousands)2024202320242023
Trade revenue (recognized at a point in time)$16,042 $6,173 $33,416 $11,718 
Contract revenue (recognized over time)3,592 18,077 10,341 32,511 
Total revenue$19,634 $24,250 $43,757 $44,229 

Geographical Concentration

Revenue is classified by geographic area based on our customers’ billing addresses as presented below:
Three Months Ended March 31,Six Months Ended March 31,
(in thousands)2024202320242023
United States and Canada$15,617 $18,710 $32,010 $34,752 
Asia1,014 1,751 3,993 2,904 
Europe2,141 3,269 5,573 5,429 
Other862 520 2,181 1,144 
Total revenue$19,634 $24,250 $43,757 $44,229