Derivative Instruments (Tables)

6 Months Ended

Jun. 30, 2016

Derivatives, Fair Value [Line Items]

Schedule of Derivative Liabilities at Fair Value [Table Text Block]

The fair values of outstanding derivative instruments are as follows (in thousands):

	Fair Value of Derivatives
	June 30, 2016		December 31, 2015		Balance Sheet Classification
Derivatives designated as hedges:
5 year interest rate swap	$	851	$	353	Other long-term liabilities
10 year interest rate swap	2,727		1,229		Other long-term liabilities
	$	3,578	$	1,582