Note 3 - Business Combination (Details Textual) - USD ($) $ in Millions		12 Months Ended
	Jan. 29, 2025	Dec. 31, 2025
Ydentic B.V. [Member] | Ydentic Holding B.V. [Member]
Subsidiary, Ownership Percentage, Parent	100.00%
Ydentic Holding B.V. [Member]
Business Combination, Voting Equity Interest Acquired, Percentage	80.00%
Business Combination, Consideration Transferred and to be Transferred	$ 20.4
Payments to Acquire Businesses, Gross	14.9
Business Combination, Acquisition-Related Cost, Expense	$ 1.3	$ 0.5
Ydentic Holding B.V. [Member] | Shares Subject to Mandatory Redemption [Member]
Business Combination, Voting Equity Interest Acquired, Percentage	20.00%
Business Combination, Consideration Transferred, Equity Interest	$ 5.5
Financial Instruments Subject to Mandatory Redemption, Settlement Terms, Share Value, Amount	$ 5.5	$ 6.2
Financial Instruments Subject to Mandatory Redemption, Minimum Obligation to Purchase, Percent		0.33%
Ydentic Holding B.V. [Member] | Shares Subject to Mandatory Redemption [Member] | Accrued Expense and Other Current Liabilities [Member]
Financial Instruments Subject to Mandatory Redemption, Settlement Terms, Share Value, Amount		$ 1.9
Ydentic Holding B.V. [Member] | Shares Subject to Mandatory Redemption [Member] | Other Noncurrent Liabilities [Member]
Financial Instruments Subject to Mandatory Redemption, Settlement Terms, Share Value, Amount		$ 4.3
Ydentic Holding B.V. [Member] | Shares Subject to Mandatory Redemption [Member] | Measurement Input, Risk Free Interest Rate [Member]
Financial Instruments Subject to Mandatory Redemption, Measurement Input	0.0427