Quarterly report [Sections 13 or 15(d)]

Note 6 - Other Comprehensive Income (Loss) - Changes in Other Comprehensive Income (Loss) (Details)

v3.26.1
Note 6 - Other Comprehensive Income (Loss) - Changes in Other Comprehensive Income (Loss) (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Mar. 31, 2026
Dec. 31, 2025
Mar. 31, 2025
Dec. 31, 2024
Mar. 31, 2026
Mar. 31, 2025
Balance $ 249,652 $ 256,163 $ 267,435 $ 275,763 $ 256,163 $ 275,763
Other comprehensive income (loss) (307)   603   (1,875) (493)
Other comprehensive income (loss) (307)   603   (1,875) (493)
Balance 242,807 249,652 265,899 267,435 242,807 265,899
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member]            
Balance 163 58 (59) 66 58 66
Other comprehensive income (loss) (307) 105 51 (125)    
Other comprehensive income (loss) (307) 105 51 (125)    
Balance (144) 163 (8) (59) (144) (8)
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]            
Balance 0 1,673 42 1,013 1,673 1,013
Other comprehensive income (loss) 0 (1,673) 552 (971)    
Other comprehensive income (loss) 0 (1,673) 552 (971)    
Balance 0 0 594 42 0 594
AOCI Attributable to Parent [Member]            
Balance 163 1,731 (17) 1,079 1,731 1,079
Other comprehensive income (loss) (307) (1,568) 603 (1,096)    
Other comprehensive income (loss) (307) (1,568) 603 (1,096)    
Balance $ (144) $ 163 $ 586 $ (17) $ (144) $ 586