Fair Value of Financial instruments (Tables)

12 Months Ended

Dec. 31, 2015

Fair Value of Financial instruments [Abstract]

Schedule of Financial Assets at Fair Value

	Fair Value Measurements at
	Reporting Date Using
			Quoted Prices			Significant
			in Active			Other			Significant
	Balance at		Markets for			Observable			Unobservable
	December 31,		Identical Assets			Inputs			Inputs
	2015		(Level 1)			(Level 2)			(Level 3)
Cash equivalents:
Money market mutual funds	$	281	$	281		$	-	$		-
Marketable Securities:
Time deposits		12,825		12,825			-			-
Corporate bonds		5,006		-			5,006			-
Long-term investments:
Time deposits		10,821		10,821			-			-
Total	$	28,933	$	23,927		$	5,006	$		-
	Fair Value Measurements at
	Reporting Date Using
			Quoted Prices			Significant
			in Active			Other			Significant
	Balance at		Markets for			Observable			Unobservable
	December 31,		Identical Assets			Inputs			Inputs
		2014		(Level 1	)		(Level 2)			(Level 3	)
Cash equivalents:
Money market mutual funds	$	4,070	$	4,070		$	-	$		-
Marketable Securities:
Time deposits		21,782		21,782			-			-
Corporate bonds		10,075		-			10,075			-
Long-term investments:
Time deposits		10,635		10,635			-			-
Total	$	46,562	$	36,487		$	10,075	$		-