Note 15 - Derivative Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2019

Notes Tables

Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block]

	Position		Notional Amount		Weighted Average Remaining Maturity In Years		Average Exchange Rate
Interest Rate Swap		—	$	190,312,500		3.2		—

Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]

			December 31,
Designation of Derivatives	Balance Sheet Location	2019			2018
Derivatives Designated as Hedging Instruments:
Interest Rate Swaps	Other non-current assets	$	261		$	3,648
	Total Assets	$	261		$	3,648
Interest Rate Swaps	Other non-current liabilities	$	4,899		$	1,885
	Total Liabilities	$	4,899		$	1,885
Forward Currency Contracts	Accrued expenses	$	—		$	44
	Total Liabilities	$	—		$	44
	Total Derivative Assets	$	261		$	3,648
	Total Derivative Liabilities		4,899			1,929
	Total Net Derivative Asset (Liability)	$	(4,638	)	$	1,719