Reverse Acquisition (Details) (USD $)	3 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2011	Sep. 30, 2011	Dec. 31, 2011	Sep. 30, 2012	Dec. 13, 2011
Reverse Acquisition [Abstract]
Effective date of merger			Dec. 13, 2011
Common stock issued after giving effect to merger (in shares)			18,821,728	21,476,636	18,820,852
Common stock outstanding after giving effect to merger (in shares)			18,821,728	21,476,636	18,820,852
Business Acquisition [Line Items]
Amount of consideration					$ 82,562,000
Amount of debt assumed					1,842,000
Market price of pre-merged PhotoMedex Shares (in dollars per share)					$ 15.60
Consideration transferred in cash					20,000,000
Change in valuation on unvested restricted stock			1,353,000
Increase in net allocations of deferred tax assets acquired			1,467,000
Increase in taxes payable due to change in tax election			122,000
Fair value of the assets acquired and liabilities assumed [Abstract]
Cash and cash equivalents					1,271,000
Accounts receivable					1,873,000
Inventories					7,136,000
Prepaid expenses and other current assets					639,000
Property and equipment					4,543,000
Patents and licensed technologies					13,500,000
Other intangible assets					12,000,000
Other assets					41,000
Deferred tax assets					28,589,000
Total assets acquired at fair value					69,592,000
Accounts payable					(6,333,000)
Accrued compensation and related expenses					(1,554,000)
Other accrued liabilities					(2,592,000)
Deferred revenues					(556,000)
Total liabilities assumed					(11,035,000)
Net assets acquired					58,557,000
Goodwill recognized under reverse acquisition					24,005,000
Summarized combined result after giving effect acquisition adjustments [Abstract]
Net revenues	42,876,000	128,093,000
Net income	$ 2,002,000	$ (3,911,000)
Net income per share [Abstract]
Basic (in dollars per share)	$ 0.13	$ (0.28)
Diluted (in dollars per share)	$ 0.12	$ (0.27)
Shares used in calculating net income per share [Abstract]
Basic (in shares)	15,357,408	13,970,895
Diluted (in shares)	16,198,503	14,689,820
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%