v3.26.3
Note 11 - Equity Compensation (Details Textual) - USD ($)
$ / shares in Units, $ in Millions
1 Months Ended 3 Months Ended
Nov. 30, 2022
Nov. 30, 2021
Sep. 30, 2026
Sep. 30, 2025
Share-Based Payment Arrangement, Expense     $ 1.1 $ 1.1
LSi Employee Stock Purchase Plan (ESPP) [Member]        
Employee Stock Ownership Plan (ESOP), Number of Allocated Shares (in shares)   270,000 201,000  
Employee Stock Ownership Plan (ESOP), Discount Percentage   10.00%    
Stock Issued During Period, Shares, Employee Stock Ownership Plan (in shares)   5,000    
The 2019 Omnibus Award Plan [Member]        
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Additional Shares Authorized (in shares) 2,350,000      
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant (in shares)     579,240  
The 2019 Omnibus Award Plan [Member] | Restricted Stock Units (RSUs) [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)     3 years  
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)     239,274  
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share)     $ 24.06  
The 2019 Omnibus Award Plan [Member] | Performance Shares [Member]        
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)     156,115  
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share)     $ 24.06