Quarterly report [Sections 13 or 15(d)]

Note 14 - Earnings Per Share (Details Textual)

v3.26.1
Note 14 - Earnings Per Share (Details Textual) - shares
3 Months Ended 6 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2026
Weighted Average Number of Shares Outstanding, Diluted, Adjustment (in shares) 4,626,636 4,626,636  
Restricted Stock Units (RSUs) [Member]      
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) 29,110   29,110
Convertible Debt Securities [Member]      
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) 1,500,000   1,500,000