Note 13 - Leases (Details Textual) - USD ($)	6 Months Ended
	Jun. 30, 2020	Dec. 31, 2019	Jan. 01, 2019
Assets, Noncurrent, Excluding Property, Plant, and Equipment	$ 531,389	$ 1,165,295
Liabilities, Current, Total	18,602,388	27,524,405
Liabilities, Noncurrent, Total	2,900,777	$ 2,670,171
Operating Lease, Expense	416,000
Operating Lease, Payments	$ 416,000
Accounting Standards Update 2016-02 [Member]
Assets, Noncurrent, Excluding Property, Plant, and Equipment			$ 2,800,000
Liabilities, Current, Total			1,100,000
Liabilities, Noncurrent, Total			$ 1,700,000