The Company (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013 Channel Segment	Sep. 30, 2012	Dec. 31, 2012
Business Acquisition [Line Items]
Effective date of merger			Jul. 01, 2013
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	$ 314		$ 314
Amount recognized as financing income	288		494
Notional amounts of foreign currency derivatives	13,600		13,600
Activity in warranty accrual [Roll Forward]
Accrual at beginning of year			1,440	1,661
Additions charged to warranty expense			1,123	1,189
Expiring warranties			(344)	(307)
Claims satisfied			(1,077)	(1,076)
Total	1,142	1,467	1,142	1,467
Less: current portion	(1,071)	(1,229)	(1,071)	(1,229)	(1,274)
Accrued long-term warranty	$ 71	$ 238	$ 71	$ 238
Weighted-average number of common and common equivalent shares outstanding [Abstract]
Basic number of common shares outstanding (in shares)	19,982,967	21,205,675	20,518,493	20,001,456
Dilutive effect of stock options and warrants (in shares)	458,295	547,170	458,295	547,170
Diluted number of common and common stock equivalent shares outstanding (in shares)	20,441,262	21,752,845	20,976,788	20,548,626
Common stock options and warrants excluded from computation of diluted earnings per share (in shares)			2,101,873
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%