The Company and Summary of Significant Accounting Policies (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013 Channel Segment	Jun. 30, 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	$ 267		$ 267
Amount recognized as financing income	52		206
Notional amounts of foreign currency derivatives	5,500		5,500
Activity in warranty accrual [Roll Forward]
Accrual at beginning of year			1,440	1,661
Additions charged to warranty expense			691	919
Expiring warranties			(281)	(218)
Claims satisfied			(655)	(658)
Total	1,195	1,704	1,195	1,704
Less: current portion	(1,117)	(1,378)	(1,117)	(1,378)	(1,274)
Accrued extended warranty	$ 78	$ 326	$ 78	$ 326
Weighted-average number of common and common equivalent shares outstanding [Abstract]
Basic number of common shares outstanding (in shares)	20,573,048	20,547,244	20,624,588	19,454,775
Dilutive effect of stock options and warrants (in shares)	460,301	487,570	460,301	487,570
Diluted number of common and common stock equivalent shares outstanding (in shares)	21,033,349	21,034,814	21,084,889	19,942,345
Common stock options and warrants excluded from computation of diluted earnings per share (in shares)			2,200,350
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%