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Increased annual stock based compensation service fee.

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Share-based compensation arrangement by share-based payment award, period options can be exercised after grant date.

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Stock options acquired.

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Gross number of share options (or share units) granted during the period.

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Note 4 - Stock-Based Compensation and Shareholders' Equity (Details Textual) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025	Dec. 31, 2024
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Allocated share-based compensation expense	$ 101,000	$ 35,000	$ 170,000	$ 65,000
Employee service share-based compensation, nonvested awards, compensation cost not yet recognized	680,000		$ 680,000
Employee service share-based compensation, nonvested awards, compensation cost not yet recognized, period for recognition			28 months
Unrecognized ompensation cost related to share-based compensation on restricted stock awards	$ 414,000		$ 414,000
Share-based compensation arrangement by share-based payment award, options, grants in period, gross			37,000	68,975
Share-based compensation arrangement by share-based payment award, options, outstanding, number	179,675	179,875	179,675	179,875	176,145	137,275
Share-based compensation arrangement by share-based payment award, options, grants in period, weighted average grant date fair value			$ 7.17	$ 6.64
Non-Employee [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, number of shares authorized	50,000		50,000
Share-based compensation arrangement by share-based payment award, shares issued			10,884
Stock repurchase program remaining number of shares	39,116		39,116
Annual stock based compensation service fee			$ 8,000
Increased annual stock based compensation service fee			$ 19,230
Victory Merger [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock options acquired, shares			628
The 2015 Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, number of shares authorized	300,000		300,000
Share-based compensation arrangement by share-based payment award, options, outstanding, number	142,675		142,675
The 2025 Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, number of shares authorized	500,000		500,000
Shares available for future grants	450,000		450,000
Director Compensation Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Allocated share-based compensation expense			$ 96,000	$ 86,000
Employee Stock Purchase Plan2021 [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Allocated share-based compensation expense	$ 32,000		$ 13,000
Share-based compensation arrangement by share-based payment award, number of shares authorized	30,000		30,000
Share-based compensation arrangement by share-based payment award, shares issued			607
Discount rate on common stock			10.00%
Expiration date			May 31, 2026
Employee Stock Purchase Plan2026 [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, number of shares authorized	50,000		50,000
The 2026 Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock discount			10.00%
Employee Stock Option [Member] \| The 2015 Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, period options can be exercised after grant date			6 months
Employee Stock Option [Member] \| The 2015 Plan [Member] \| First Anniversary [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, award vesting rights, percentage			20.00%
Employee Stock Option [Member] \| The 2025 Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, options, grants in period, gross			50,000
Share-based compensation arrangement by share-based payment award, options, outstanding, number	50,000		50,000
Restricted Stock [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Employee service share-based compensation, nonvested awards, compensation cost not yet recognized, period for recognition			17 months
Restricted Stock Awards Granted			13,000