Accounts Receivable - Accounts Receivable (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014		Dec. 31, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable	$ 4,440		$ 4,590
Laser Earn-Out Payment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable	4,000	[1]	4,000	[1]
Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable	$ 440		$ 590

[1] Accounts receivable relates to a milestone payment owing from Valeant related to the receipt of the PMA supplement for the Qcellus laser from the U.S. FDA on September 26, 2013. Refer to Note 3 - Contingent Consideration and Note 10 - Discontinued Operations for more information.