Note 4 - Fair Value Measurements and Derivative Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2020

Notes Tables

Fair Value Measurements, Recurring and Nonrecurring [Table Text Block]

	March 31, 2020								December 31, 2019
	Total		Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3
Other long-term liabilities:
Interest rate swaps	$	3,167	$	-	$	3,167	$	-	$	288	$	-	$	288	$	-

Schedule of Cash Flow Hedging Instruments, Statements of Financial Performance and Financial Position, Location [Table Text Block]

		Notional		Fair
	Balance Sheet Location	Amount		Value
At March 31, 2020:
Interest rate swaps	Other long-term liabilities	$	132,469	$	3,167
At December 31, 2019:
Interest rate swaps	Other assets	$	133,313	$	288

Derivative Instruments, Gain (Loss) [Table Text Block]

	Three Months Ended
	March 31,
	2020			2019
Loss recognized in accumulated other comprehensive loss	$	(2,878	)	$	(13	)
Gain reclassified from accumulated other comprehensive loss to income		-			227

Effect of Cash Flow Hedge Accounting on the Statement of Operations [Table Text Block]

	Three Months Ended
	March 31,
	2020			2019
Recorded as Interest Expense:
Hedged interest payments	$	(2,081	)	$	(1,594	)
Gain on interest rate swap		-			(227	)