Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2016

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

The fair value hierarchy for our financial assets accounted for at fair value on a recurring basis at March 31, 2016 and December 31, 2015 was as follows (in thousands):



	As of March 31, 2016
	Level 1		Level 2			Level 3		Total
Assets
Interest rate derivatives	$	—	$	—		$	—	$	—
OTC Commodity swaps	—		74			—		74
Total assets	—		74			—		74
Liabilities
OTC Commodity swaps	—		(13		)	—		(13		)
Net assets	$	—	$	61		$	—	$	61



	As of December 31, 2015
	Level 1		Level 2			Level 3		Total
Assets
Interest rate derivatives	$	—	$	—		$	—	$	—
OTC commodity swaps	—		171			—		171
Total assets	—		171			—		171
Liabilities
OTC commodity swaps	—		(45		)	—		(45		)
Net assets	$	—	$	126		$	—	$	126