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Note 2 - Significant Accounting Policies (Details Textual)		3 Months Ended
	Jan. 03, 2024 USD ($) $ / shares	Mar. 31, 2024 USD ($) shares	Mar. 31, 2023 USD ($)
Impairment of Long-Lived Assets Held-for-use		$ 0
Proceeds from Convertible Debt		10,000,000	$ 0
Gain (Loss), Foreign Currency Transaction, before Tax		$ (1,582,000)	$ 383,000
Number of Operating Segments		1
Share-Based Payment Arrangement, Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) \| shares		1,002,274
Convertible Debt Securities [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) \| shares		1,921,828
Convertible Loan Agreement [Member] \| Chief Executive Officer [Member]
Proceeds from Convertible Debt	$ 10,000,000
Debt Instrument, Interest Rate, Stated Percentage	8.00%
Debt Instrument, Convertible, Conversion Price (in dollars per share) \| $ / shares	$ 4.048
Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger	19.90%
Debt Instrument, Convertible, Acceleration Feature, Share Price (in dollars per share) \| $ / shares	$ 3
Debt Instrument, Convertible, Acceleration Feature, Cash Position	$ 65,000,000
Furniture and Fixtures [Member]
Property, Plant and Equipment, Useful Life (Year)		7 years
Office Equipment [Member]
Property, Plant and Equipment, Useful Life (Year)		5 years
Equipment [Member]
Property, Plant and Equipment, Useful Life (Year)		5 years
Vehicles [Member]
Property, Plant and Equipment, Useful Life (Year)		5 years
Mobile Facility [Member]
Property, Plant and Equipment, Useful Life (Year)		27 years 6 months
Building [Member]
Property, Plant and Equipment, Useful Life (Year)		39 years