Quarterly report [Sections 13 or 15(d)]

Note 8 - Long-term Investments (Details Textual)

Note 8 - Long-term Investments (Details Textual)			3 Months Ended
Note 8 - Long-term Investments (Details Textual)	Dec. 05, 2024 USD ($) $ / shares shares	Sep. 27, 2022 USD ($) shares	Mar. 31, 2025 USD ($)	Mar. 31, 2024 USD ($)	Jan. 26, 2025 USD ($) shares	Dec. 31, 2024 USD ($)
Stock Issued During Period, Value, New Issues			$ 300,000
Payments to Acquire Investments			1,300,000	$ (0)
Stock Purchase Agreement [Member] \| QBSG Limited [Member]
Stock Issued During Period, Shares, New Issues (in shares) \| shares		86,339
Stock Issued During Period, Value, New Issues		$ 1,350,000
Profit Participation Agreement [Member] \| QBSG Limited [Member]
Stock Issued During Period, Shares, New Issues (in shares) \| shares	113,636
Stock Issued During Period, Value, New Issues	$ 500,000
Shares Issued, Price Per Share (in dollars per share) \| $ / shares	$ 4.4
QBSG Limited [Member]
Investment Owned, Balance, Shares (in shares) \| shares		65,700
Investment Owned, Percentage of Total Issued Share Capital	15.00%	9.00%
Investment Ownership, Additional Percentage Acquired in Transaction	6.00%
Investment Ownership, Additional Percentage Acquired, Consideration Transferred	$ 1,200,000
Payments to Acquire Investments	$ 700,000
QBSG Limited [Member] \| Fair Value, Inputs, Level 3 [Member]
Investment Owned, Percentage of Total Issued Share Capital						6.00%
Investment Owned, Cost						$ 1,200,000
Investment Owned, Fair Value			$ 1,156,000
QBSG Limited [Member] \| Fair Value, Inputs, Level 3 [Member] \| Measurement Input, Weighted Average Cost of Capital [Member]
Equity Securities, FV-NI, Measurement Input			0.15
QBSG Limited [Member] \| Fair Value, Inputs, Level 3 [Member] \| Measurement Input, Long-Term Revenue Growth Rate [Member]
Equity Securities, FV-NI, Measurement Input			0.10
QBSG Limited [Member] \| Fair Value, Inputs, Level 3 [Member] \| Measurement Input, Pre-tax Operating Margin [Member]
Equity Securities, FV-NI, Measurement Input			0.15
QBSG Limited [Member] \| Fair Value, Inputs, Level 3 [Member] \| Measurement Input, Discount for Lack of Control [Member]
Equity Securities, FV-NI, Measurement Input			0.20
QBSG Limited [Member] \| Fair Value, Inputs, Level 3 [Member] \| Measurement Input, Discount for Lack of Marketability [Member]
Equity Securities, FV-NI, Measurement Input			0.40
AI Geometric Ltd [Member]
Investment Owned, Balance, Shares (in shares) \| shares					1,300
Investment Owned, Percentage of Total Issued Share Capital					13.00%
Investment Owned, Balance, Principal Amount					$ 1,300,000