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Note 4 - Other Recent Business Transactions or Events (Tables)
6 Months Ended
Jun. 30, 2023
Notes Tables  
Investment Holdings, Schedule of Investments [Table Text Block]
   

Asset/(Liability)

 

Cash and cash equivalents

  $ 257  

Receivables from brokers, dealers, and clearing agencies

    68,066  

Other investments, at fair value

    40,388  

Other assets

    108  

Accounts payable and other liabilities

    (82,968 )

Other investments sold, not yet purchased

    (25,806 )

GP's remaining investment in SPAC Fund

  $ 45