Note 3 - Business Combination (Details Textual) - USD ($) $ in Thousands		3 Months Ended	6 Months Ended
	Jan. 29, 2025	Jun. 30, 2025	Jun. 30, 2025	Mar. 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	$ 20,400
Payments to Acquire Businesses, Gross	14,900
Business Combination, Acquisition-Related Cost, Expense	$ 1,300	$ 0	$ 500
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	$ 5,500
Financial Instruments Subject to Mandatory Redemption, Settlement Terms, Share Value, Amount	$ 5,500	7,100	7,100
Financial Instruments Subject to Mandatory Redemption, Settlement Terms, Impact of Changes in Fair Value of Shares on Amount		$ 800	$ 800	$ 0
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