Schedule II - Valuation and Qualifying Accounts (Tables)

12 Months Ended

Dec. 31, 2014

Valuation and Qualifying Accounts [Abstract]

Summary of Valuation Allowance [Table Text Block]

Col. A	Col. B		Col. C				Col. D			Col. E
			Additions
Description	Balance at Beginning of Period		(1) Charged to Costs and Expenses		(2) Charged to Other Accounts (a)		Deductions(b)			Balance at End of Period
Year Ended December 31, 2014:
Allowance for doubtful accounts	$	730	$	1,356	$	290	$	(709	)	$	1,667
Valuation allowance for deferred tax assets	$	2,748	$	3	$	-	$	(699	)	$	2,052
Year Ended December 31, 2013:
Allowance for doubtful accounts	$	2,064	$	432	$	-	$	(1,766	)	$	730
Valuation allowance for deferred tax assets	$	3,157	$	92	$	-	$	(501	)	$	2,748
Year Ended December 31, 2012:
Allowance for doubtful accounts	$	2,314	$	140	$	-	$	(390	)	$	2,064
Valuation allowance for deferred tax assets	$	4,620	$	4	$	-	$	(1,467	)	$	3,157