v3.26.1
Note 9 - Income Taxes - Reconciliation of Income Tax (Details) - USD ($)
12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Current tax at U.S. statutory rate $ (4,248,479) $ (3,115,433)
Current tax at U.S. statutory rate, percent 21.00% 21.00%
State income taxes, net of federal benefit (1) $ (13,657) [1] $ (475,224)
State income taxes, net of federal benefit (1), percent [1] 0.10%  
Latvia - statutory rate differences   (60,104)
Other foreign tax effects   (60,104)
GILTI $ 848,864 192,980
GILTI, percent (4.20%)  
Federal research and development credit expiration $ 103,598 206,467
Federal research and development credit expiration, percent (0.50%)  
Changes in valuation allowance $ 3,256,056 1,879,595
Changes in valuation allowance, percent (16.10%)  
Nondeductible/nontaxable items $ 173,242  
Nondeductible/nontaxable items, percent (0.90%)  
NOL expiration and adjustments $ 733,630 939,505
NOL expiration and adjustments, percent (3.60%)  
Other adjustments $ 48,555 54,147
Other adjustments, percent (0.20%)  
Total income tax provision $ 314,713 37,790
Income tax rate, percent (1.60%)  
Federal research and development and other credits   (225,532)
Rate change   14,759
Stock-based compensation   (66,682)
Acquisition financing   455,901
Prior year true-ups   $ 237,411
Latvian State Revenue Service [Member]    
Latvia - statutory rate differences $ (598,961)  
Latvia - statutory rate differences, percent 3.00%  
Other foreign tax effects $ (598,961)  
Other foreign tax effects, percent 3.00%  
Other Foreign Countries [Member]    
Latvia - statutory rate differences $ 11,865  
Latvia - statutory rate differences, percent (0.10%)  
Other foreign tax effects $ 11,865  
Other foreign tax effects, percent (0.10%)  
[1] The states that contribute to the majority (greater than 50%) of the tax impact in this category include New Hampshire for 2026.