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CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Mar. 31, 2025
Mar. 31, 2024
Revenues:        
Revenues $ 6,932 $ 5,739 $ 13,872 $ 10,100
Cost of revenues 4,322 3,562 8,084 6,444
Gross profit 2,610 2,177 5,788 3,656
Operating expenses        
Selling, general and administrative 6,648 6,640 13,482 13,158
Research and development 2,217 2,531 4,502 4,722
Total operating expenses 8,865 9,171 17,984 17,880
Loss from operations (6,255) (6,994) (12,196) (14,224)
Other income, net 187 51 2,050 128
Loss before income taxes (6,068) (6,943) (10,146) (14,096)
Income tax expense (benefit) 71 (5) 71 (434)
Net loss $ (6,139) $ (6,938) $ (10,217) $ (13,662)
Net loss per common share - basic (in dollars per share) $ (0.14) $ (0.16) $ (0.23) $ (0.31)
Net loss per common share - diluted (in dollars per share) $ (0.14) $ (0.16) $ (0.23) $ (0.31)
Weighted average common shares outstanding:        
Basic (in shares) 45,002,197 44,247,858 44,956,697 44,026,750
Diluted (in shares) 45,002,197 44,247,858 44,956,697 44,026,750
Product [Member]        
Revenues:        
Revenues $ 3,070 $ 3,209 $ 7,214 $ 5,375
Service [Member]        
Revenues:        
Revenues $ 3,862 $ 2,530 $ 6,658 $ 4,725