Note 6 - Long-term Debt - Schedule of Long-term Debt (Details) (Parentheticals) - USD ($) $ in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
First Lien Credit Facilities [Member] | Revolving Credit Facility [Member]
Effective interest rate	4.64%
First Lien Credit Facilities [Member] | London Interbank Offered Rate (LIBOR) [Member] | Revolving Credit Facility [Member]
Interest rate	3.50%
First Lien Credit Facilities [Member] | Term Loan [Member]
Unamortized discount and costs	$ 7.8	$ 9.0
Effective interest rate	4.95%
First Lien Credit Facilities [Member] | Term Loan [Member] | London Interbank Offered Rate (LIBOR) [Member]
Interest rate	3.50%	3.50%
The First Lien Credit Agreement [Member] | Incremental Term Loan [Member]
Unamortized discount and costs	$ 8.2
Effective interest rate	14.00%
The First Lien Credit Agreement [Member] | Incremental Term Loan [Member] | London Interbank Offered Rate (LIBOR) [Member]
Interest rate	13.00%