Annual report pursuant to Section 13 and 15(d)

Note 19 - Related-Party Transactions (Details Textual)

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Note 19 - Related-Party Transactions (Details Textual) - USD ($)
$ in Thousands
1 Months Ended 12 Months Ended 24 Months Ended
Sep. 01, 2019
Oct. 31, 2020
Dec. 05, 2018
Oct. 31, 2020
Aug. 31, 2019
PGP Advisors, LLC [Member] | Management Services Agreement [Member]          
Related Party Transaction, Amounts of Transaction, Annual Fee $ 2,000       $ 4,000
Related Party Transaction, Selling, General and Administrative Expenses from Transactions with Related Party     $ 0    
General and Administrative Expense [Member]          
Settlement of Tax Refunds from Net Operating Loss Carryforwards   $ 2,000   $ 2,000