Note 13 - Leases (Details Textual)	9 Months Ended
	Sep. 30, 2020
Lessee, Lease, Termination Period (Year)	1 year
Minimum [Member]
Lease, Remaining Lease Term (Year)	1 year
Lessee, Lease, Renewal Term (Year)	3 years
Maximum [Member]
Lease, Remaining Lease Term (Year)	10 years
Lessee, Lease, Renewal Term (Year)	5 years