Derivative Instruments Derivative Instruments Gain Loss Table (Tables)

6 Months Ended

Jun. 30, 2017

Derivative Instruments, Gain (Loss) [Line Items]

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

The effect of the interest rate swaps on the Consolidated Statement of Operations was as follows:

	Three Months Ended June 30,				Six Months Ended June 30,
	2017		2016		2017		2016		Income Statement Classification
Derivatives designated as hedges:
5 year interest rate swap	$	46	$	81	$	105	$	163	Increase to interest expense
10 year interest rate swap	94		130		202		261		Increase to interest expense
	$	140	$	211	$	307	$	424