The Company and Summary of Significant Accounting Policies (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended												12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Sep. 30, 2010	Jun. 30, 2010	Mar. 31, 2010	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Business Acquisition [Line Items]
Effective date of merger													Dec. 13, 2011
Number of operating units													3
Number of product lines primarily generating revenues													2
Cash and Cash Equivalents [Abstract]
Short term investment maturity period													3 months
Accounts Receivable [Abstract]
Accounts receivable minimum maturity period													30 days
Accounts Receivable maximum maturity period													90 days
Property and Equipment [Abstract]
Estimated useful life													5 years
Other Intangible Assets [Abstract]
Other intangible assets useful lives													10 years
Activity in warranty accrual [Roll Forward]
Accrual at beginning of year				$ 1,661				$ 260					$ 1,661	$ 260
Additions due to reverse acquisition													0	955
Additions charged to warranty expense													1,497	813
Expiring warranties													(442)	0
Claims satisfied													(1,276)	(367)
Total	1,440				1,661				260				1,440	1,661	260
Less: current portion	(1,274)				(1,157)								(1,274)	(1,157)
Accrued warranty	166				504								166	504
Liability for Employee Rights Upon Retirement [Abstract]
Number of monthly salary eligible by employee for each year of service as severance pay													1 month
Severance expenses													179	185	162
Revenue Recognition [Abstract]
Number of distribution channels													2
Period of sales deferred													14 days
Advertising Costs [Abstract]
Advertising expenses													60,651	32,303	12,435
Derivatives [Abstract]
Balance of derivative instruments	402												402
Amount recognized as financing income													289
Notional amounts of foreign currency derivatives	8,400												8,400
Income Taxes [Abstract]
Income tax benefit percentage realized on examination (in hundredths)													50.00%
Weighted average number of common and common equivalent shares outstanding [Abstract]
Basic number of common shares outstanding (in shares)	20,947,985	21,205,675	20,547,244	18,339,977	13,509,866	12,341,723	10,256,364	10,256,364	10,256,364	10,256,364	10,256,364	10,256,364	20,355,520	11,602,049	10,256,364
Dilutive effect of stock options and warrants (in shares)													408,834	0	1,468,205
Diluted number of common and common stock equivalent shares outstanding (in shares)	21,356,819	21,752,845	21,034,814	18,876,163	13,509,866	13,182,818	10,256,364	11,819,587	11,794,422	11,760,412	11,719,104	11,664,900	20,764,354	11,602,049	11,724,569
Common stock options and warrants excluded from computation of diluted earnings per share (in shares)													1,920,442	1,791,788
Impairment of Long-Lived Assets and Intangibles [Abstract]
Asset impairment													$ 0
Core technology [Member]
Finite-Lived Intangible Assets [Line Items]
Patent costs and licensed technologies useful life													10 years
Product technology [Member]
Finite-Lived Intangible Assets [Line Items]
Patent costs and licensed technologies useful life													5 years
Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Patent costs and licensed technologies useful life													8 years
Warranty on Product Sales [Line Items]
Period of warranty on product sales													1 year
Extended period of warranty on domestic sale of laser equipment													3 years
Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Patent costs and licensed technologies useful life													12 years
Warranty on Product Sales [Line Items]
Period of warranty on product sales													2 years
Extended period of warranty on domestic sale of laser equipment													4 years
Computer Equipment [Member] | Minimum [Member]
Property and Equipment [Abstract]
Estimated useful life													3 years
Computer Equipment [Member] | Maximum [Member]
Property and Equipment [Abstract]
Estimated useful life													7 years
Minimum [Member]
Short-term Deposits [Abstract]
Short-term deposits maturity period													3 months
Maximum [Member]
Short-term Deposits [Abstract]
Short-term deposits maturity period													1 year
PhotoMedex, Inc. [Member]
Business Acquisition [Line Items]
Percentage of ownership on reverse merger (in hundredths)													20.00%
Radiancy, Inc. [Member]
Business Acquisition [Line Items]
Percentage of ownership on reverse merger (in hundredths)													80.00%