v3.26.1
Note 3 - Partners' Equity (Details Textual) - $ / shares
1 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2023
Apr. 30, 2026
Mar. 31, 2026
Dec. 31, 2025
Mar. 31, 2025
Maximum percentage of units to be repurchased           10.00%    
Percentage of Adjusted Book Value of Company Allocable to the Repurchase Right Per Unit           66.00%    
Minimum Percentage of Outstanding Units Tendered to Use Prorated Method for Calculating Actual Number of Units Acquired           10.00%    
Net Repurchase Price of Partner Unit   $ 1.32 $ 1.46 $ 6.36        
Partners' Capital Account, Units, Treasury Units Purchased (in shares)   48,148 141,966 526,433        
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross   24,074 30,000 30,000        
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period (in shares)   24,074 30,000 30,000        
Limited Partners' Capital Account, Units Outstanding (in shares)   4,610,646       4,610,646 4,610,646  
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number (in shares)           0   0
Subsequent Event [Member]                
Net Repurchase Price of Partner Unit $ 1.35              
Partners' Capital Account, Distribution Per Unit of Limited Partner Interest         $ 0.5