Commitments and Contingencies (Details) (USD $)	3 Months Ended		9 Months Ended		0 Months Ended	91 Months Ended	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Jul. 28, 2014 Governmental Proceedings [Member]	Jul. 31, 2014 Governmental Proceedings [Member] Vari-Lase [Member]	Sep. 30, 2014 King Agreements [Member]	Sep. 30, 2013 King Agreements [Member]	Dec. 31, 2013 King Agreements [Member]
Governmental Proceedings [Abstract]
Product revenue	$ 31,766,000	$ 27,926,000	$ 92,216,000	$ 81,197,000		$ 534,000
Total U.S. sales, percentage (in hundredths)						0.10%
Alleged damages from product defects to government						20,000,000
Terms of settlement of litigation					520,000
King Agreements [Abstract]
Unamortized license fee							457,000		610,000
Future amortization of deferred revenue per quarter							51,000
Amortization period for license fee							10 years
Amortization of license fee							$ 153,000	$ 153,000