Derivative Instruments (Tables)

9 Months Ended

Sep. 30, 2017

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:

	Fair Value of Derivatives
	September 30, 2017		December 31, 2016		Balance Sheet Classification
Derivatives designated as hedges:
5 year interest rate swap	$	62	$	211	Other long-term liabilities
10 year interest rate swap	809		835		Other long-term liabilities
	$	871	$	1,046