XML 69 R56.htm IDEA: XBRL DOCUMENT v3.25.1
Note 7 - Income Taxes - Reconciliation of Unrecognized Tax Benefit (Details) - USD ($)
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Balance at beginning of year $ 287,000 $ 278,000
Additions based on tax positions of prior years 13,000 9,000
Additions based on tax positions of current year 12,000 0
Reductions in tax positions of prior years (18,000) 0
Lapse of statues of limitations (75,000) 0
Removal of penalties (58,000) 0
Balance at end of year $ 161,000 $ 287,000