The Company (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
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	$ 175
Amount recognized as financing income	90
Notional amounts of foreign currency derivatives	4,250
Activity in warranty accrual [Roll Forward]
Accrual at beginning of year	1,151	1,440
Additions charged to warranty expense	256	337
Expiring warranties	(69)	(152)
Claims satisfied	(247)	(314)
Total	1,091	1,311
Less: current portion	(1,021)	(1,190)	(1,094)
Accrued long-term warranty	$ 70	$ 121
Weighted-average number of common and common equivalent shares outstanding [Abstract]
Basic number of common shares outstanding (in shares)	18,719,419	20,678,023
Dilutive effect of stock options and warrants (in shares)	0	469,560
Diluted number of common and common stock equivalent shares outstanding (in shares)	18,719,419	21,147,583
Common stock options and warrants excluded from computation of diluted earnings per share (in shares)	2,444,016	1,081,226
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%