Note 18 - Allowances (Tables)

12 Months Ended

Dec. 31, 2017

Notes Tables

Summary of Valuation Allowance [Table Text Block]

	Balance at Beginning of Year		Additions Charged to Expenses/ Other Accounts		Net (Deductions) Recoveries			Balance at End of Year
Valuation allowance for deferred tax assets
2017	$	36,459,254	$	--	$	(9,366,549	)	$	27,092,705
2016	$	32,367,359	$	4,091,895	$	--		$	36,459,254