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Note 7 - Long-term Debt - Maximum Total Leverage Ratio (Details) - Bank Credit Facility [Member]	Dec. 31, 2020
Four Fiscal Quarters Ended March 31, 2019 through December 31, 2019 [Member]
Maximum total leverage ratio	6.00
Four Fiscal Quarters Ended March 31, 2021 [Member]
Maximum total leverage ratio	5.75
Four Fiscal Quarters Ended June 30, 2021 through December 31, 2021[Member]
Maximum total leverage ratio	7.75
Four Fiscal Quarters Ended March 31, 2022 [Member]
Maximum total leverage ratio	7.00
Four Fiscal Quarters Ended June 30, 2022 [Member]
Maximum total leverage ratio	6.75
Four Fiscal Quarters Ended September 30, 2022 [Member]
Maximum total leverage ratio	6.50
Four Fiscal Quarters Ended December 31, 2022 [Member]
Maximum total leverage ratio	6.00
Four Fiscal Quarters Ended March 31, 2023 and Thereafter [Member]
Maximum total leverage ratio	5.50

X

- Definition

The maximum total leverage ratio allowed under the covenant terms of the line of credit facility.

+ References

No definition available.

+ Details

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