Note 9 - Leases, Commitments and Contingencies - Lease Cost and Other (Details)	12 Months Ended
	Dec. 31, 2019 USD ($)
Lease cost	$ 2,392,208
Operating leases (Year)	6 years 292 days
Finance leases (Year)	1 year 219 days
Operating leases	10.30%
Finance leases	7.70%
General and Administrative Expense [Member]
Operating lease cost	$ 884,597
Amortization of lease assets	1,316,924
Interest Expense [Member]
Interest on lease liabilities	$ 190,687