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Note 6 - Line of Credit (Details Textual) - HSBC Venture Bank USA Inc. [Member] - USD ($)
$ in Thousands
3 Months Ended 21 Months Ended
Apr. 07, 2020
Mar. 31, 2022
Dec. 31, 2021
Jul. 01, 2021
Revolving Credit Facility [Member]        
Line of Credit Facility, Maximum Borrowing Capacity $ 30,000      
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage 0.50%      
Proceeds from Lines of Credit, Total   $ 0 $ 0  
Revolving Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member]        
Debt Instrument, Basis Spread on Variable Rate 3.50%      
Revolving Credit Facility [Member] | AvePoint US, LLC [Member]        
Debt Instrument, Percentage of Equity Pledged       100.00%
Line of Credit, Accordion Feature [Member]        
Line of Credit Facility, Maximum Borrowing Capacity $ 20,000