Debt (Tables)

12 Months Ended

Dec. 31, 2016

Debt Disclosure [Abstract]

Schedule of Long-term Debt

	December 31,
Long-term Debt	2016			2015
1.85% note, unsecured, due in quarterly installments of $798 beginning in July 2014    through April 2016	$	—		$	1,586
1.43% note, unsecured, due in quarterly installments of $134 beginning in July 2014    through April 2016	—			267
2.03% to 30.63% capital leases, various maturities	11,426			14,977
	$	11,426		$	16,830
Less current portion	(4,155		)	(6,558		)
Long-term Debt	$	7,271		$	10,272

Schedule of Long-term Debt Maturities

Long-term Debt matures as follows:
2017	$	4,155
2018	1,672
2019	996
2020	811
2021	751
After 2021	3,041
	$	11,426