Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2014

Fair Value Measurements [Abstract]

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

		Fair Value Measurements at Reporting Date Using								Fair Value Measurements at Reporting Date Using
		December 31, 2014		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		December 31, 2013		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Domestic money market funds	$	-	$	-	$	-	$	-	$	18,276	$	18,276	$	-	$	-
Non-domestic bank term deposits		25		25		-		-		32,947		32,947		-		-
Total Assets	$	25	$	25	$	-	$	-	$	51,223	$	51,223	$	-	$	-