Note 13 - Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Deferred tax assets:
Allowance for doubtful accounts	$ 373,438	$ 165,083
Inventories	594,628	113,730
Federal NOL	228,637
State NOL	80,514
Section 481(a) adjustment		40,317
Accrued expenses	80,100	46,750
Total deferred tax assets	1,357,317	365,880
Deferred tax liabilities:
Property and equipment	(3,270,536)	(1,444,008)
Intangibles assets	(50,327,833)
Total deferred tax liabilities	(53,598,369)	(1,444,008)
Net deferred tax liabilities	(52,241,052)	(1,078,128)
Deferred tax assets	78,993	117,933
Deferred tax liabilities	(52,320,045)	(1,196,061)
Net deferred tax liabilities	$ (52,241,052)	$ (1,078,128)