Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2017

Fair Value Disclosures [Abstract]

Fair Value, Assets Measured on Recurring Basis [Table Text Block]

			Fair Value Measurements at March 31, 2017
	Total			Using Fair Value Hierarchy
Assets	Fair Value			Level 1		Level 2		Level 3
Company-owned life insurance	$	1,454		$	—	$	1,454	$	—
Total	$	1,454		$	—	$	1,454	$	—

			Fair Value Measurements at December 31, 2016
	Total			Using Fair Value Hierarchy
Assets	Fair Value			Level 1		Level 2		Level 3
Company-owned life insurance	$	1,410		$	—	$	1,410	$	—
Total	$	1,410		$	—	$	1,410	$	—