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

6 Months Ended

Jun. 30, 2019

Notes Tables

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

	June 30, 2019								December 31, 2018
	Total		Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3
Other assets:
Interest rate swaps	$	40	$	-	$	40	$	-	$	458	$	-	$	458	$	-

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 June 30, 2019:
Interest rate swaps	Other assets	$	135,000	$	40
At December 31, 2018:
Interest rate swaps	Other assets	$	90,000	$	458

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

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2019		2018		2019		2018
Gain recognized in accumulated other comprehensive loss	$	47	$	107	$	34	$	412
Gain reclassified from accumulated other comprehensive loss to income		224		97		451		122

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

	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2019			2018			2019			2018
Recorded as Interest Expense:
Hedged interest payments	$	(1,603	)	$	(1,575	)	$	(3,197	)	$	(3,062	)
Gain on interest rate swap		224			97			451			122