Income Taxes (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income (loss) before income tax [Abstract]
U.S	$ 7,698,000	$ 3,152,000	$ (16,309,000)
Israel	14,279,000	20,414,000	13,980,000
Other Foreign	768,000	3,365,000	0
Total	22,745,000	26,931,000	(2,329,000)
United States - Federal tax [Abstract]
Current	(1,253,000)	2,752,000	246,000
Deferred	1,795,000	(1,572,000)	(5,495,000)
United States - State tax [Abstract]
Current	180,000	315,000	0
Deferred	850,000	(2,074,000)	(243,000)
Israel [Abstract]
Current	2,781,000	4,034,000	3,487,000
Deferred	(237,000)	(50,000)	(17,000)
Other Foreign [Abstract]
Current	54,000	1,371,000	0
Deferred	200,000	(338,000)	0
Income tax expense (benefit)	4,370,000	4,438,000	(2,022,000)
Tax rate (in hundredths)	35.00%	35.00%	35.00%
Income tax expense (benefit) [Abstract]
Federal tax expense (benefit) at 35%	7,961,000	9,426,000	(815,000)
State and local income tax	958,000	286,000	(320,000)
Foreign rate differential	(2,656,000)	(4,213,000)	(3,654,000)
Increase in taxes from permanent differences in stock-based compensation	433,000	637,000	2,674,000
US taxation of foreign earnings - Subpart F	367,000	403,000	0
Increase (decrease) in uncertain tax positions	269,000	(2,325,000)	0
Return to provision and other adjustments	(1,964,000)	0	0
Impact of tax rate change on deferred taxes	(942,000)	0	0
Foreign tax credits	(341,000)	0	0
Change in valuation allowance	116,000	0	0
Other	169,000	224,000	93,000
Income tax expense (benefit)	4,370,000	4,438,000	(2,022,000)
Operating Loss Carryforwards [Line Items]
Loss carryforwards recognized in the deferred tax account	21,092,000	20,122,000
Photo Therapeutics Ltd [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	11,000,000
Israeli subsidiary [Member]
Operating Loss Carryforwards [Line Items]
Income tax examination	2010 through 2013
Brazilian Subsidiary [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	300,000
Federal [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	48,000,000
Income tax examination	2010 through 2013
Loss carryforwards recognized in the deferred tax account	18,400,000
State and Local Jurisdiction [Member]
Operating Loss Carryforwards [Line Items]
Deferred tax asset	1,971
Income tax examination	2005 through 2013
Operating loss carryforwards, valuation allowance	$ 1,548
Operating loss carryforwards expiration	through 2017 to 2033