Note 5 - Bank Debt - Maximum Leverage Ratio (Details) - Credit Agreement [Member]	Sep. 30, 2022
Period Ending June 30, 2022 [Member]
September 30, 2022	4.50
Period Ended September 30, 2022 [Member]
September 30, 2022	2.50
Period Ending March 31, 2023 and Thereafter [Member]
September 30, 2022	2.25