Acquisition (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2011	Dec. 31, 2012	Dec. 13, 2011
Acquisition [Abstract]
Common stock issued after giving effect to merger (in shares)	18,903,245		21,043,947	18,820,852
Common stock outstanding after giving effect to merger (in shares)	18,903,245		21,043,947	18,820,852
Business Acquisition [Line Items]
Effective date of merger	Dec. 13, 2011
Total amount of consideration	$ 82,562
Consideration transferred in cash	20,000
Amount of debt assumed	1,842
Fair value of the assets acquired and liabilities assumed [Abstract]
Market price of pre-merged PhotoMedex Shares (in dollars per share)	$ 15.60
Consideration transferred in cash	20,000
Change in valuation on unvested restricted stock		1,353
Summarized combined result after giving effect acquisition adjustments [Abstract]
Net revenues		162,341
Net income (loss)		(13,077)
Net income (loss) per share: [Abstract]
Basic (in dollars per share)		$ (0.91)
Diluted (in dollars per share)		$ (0.91)
Shares used in calculating net income (loss) per share [Abstract]
Basic (in shares)		14,445,184
Diluted (in shares)		14,445,184
PhotoMedex, Inc. [Member]
Business Acquisition [Line Items]
Percentage of ownership on reverse merger (in hundredths)	20.00%
Percentage of ownership agreed on reverse merger (in hundredths)	25.00%
Radiancy, Inc. [Member]
Business Acquisition [Line Items]
Percentage of ownership on reverse merger (in hundredths)	80.00%
Percentage of ownership agreed on reverse merger (in hundredths)	75.00%
LK Technology [Member]
Business Acquisition [Line Items]
Effective date of merger	Jul. 01, 2013
Percentage of shares acquired by wholly-owned subsidiary (in hundredths)	100.00%
Total consideration	100
Estimated profit	81
Total amount of consideration	181
Consideration transferred in cash	41
Cash down payment	59
Fair value of the assets acquired and liabilities assumed [Abstract]
Cash and cash equivalents	125
Accounts receivable	1
Inventories	20
Prepaid expenses and other current assets	2
Total assets acquired at fair value	148
Accounts payable	(75)
Accrued compensation and related expenses	(2)
Other accrued liabilities	(11)
Total liabilities assumed	(88)
Net assets acquired	60
Consideration transferred in cash	$ 41