The Company and Summary of Significant Accounting Policies (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013 Segment Channel	Mar. 31, 2012	Dec. 31, 2012
Business Acquisition [Line Items]
Effective date of merger	Dec. 13, 2011
Number of operating units	3
Revenue Recognition [Abstract]
Number of distribution channels	2
Period of sales deferred	14 days
Derivatives [Abstract]
Balance of derivative instruments	$ 377
Amount recognized as financing income	154
Notional amounts of foreign currency derivatives	4,800
Activity in warranty accrual [Roll Forward]
Accrual at beginning of year	1,440	1,661
Additions charged to warranty expense	337	483
Expiring warranties	(152)	(74)
Claims satisfied	(314)	(330)
Total	1,311	1,740
Less: current portion	(1,190)	(1,308)	(1,274)
Accrued extended warranty	$ 121	$ 432
Weighted-average number of common and common equivalent shares outstanding [Abstract]
Basic number of common shares outstanding (in shares)	20,678,023	18,339,977
Dilutive effect of stock options and warrants (in shares)	469,560	536,186
Diluted number of common and common stock equivalent shares outstanding (in shares)	21,147,583	18,876,163
Common stock options and warrants excluded from computation of diluted earnings per share (in shares)	1,081,226
Minimum [Member]
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]
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
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%