Note 10 - Segment Information and Revenue by Geography and Products (Details) - Revenue by Geographic Region (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Revenue mix by geography:
Revenue mix	$ 25,499	$ 18,726	$ 17,724	$ 16,189	$ 22,239	$ 16,828	$ 19,560	$ 15,967	$ 78,138	$ 74,594	$ 77,277
Products and Upgrades [Member]
Revenue mix by geography:
Revenue mix									53,106	48,374	49,605
Titan and truSculpt Hand Piece Refills [Member]
Revenue mix by geography:
Revenue mix									3,714	4,267	4,807
Dermal Filler and Cosmeceuticals [Member]
Revenue mix by geography:
Revenue mix									3,479	4,264	5,645
Total Product Revenue [Member]
Revenue mix by geography:
Revenue mix									60,299	56,905	60,057
Service [Member]
Revenue mix by geography:
Revenue mix									17,839	17,689	17,220
UNITED STATES
Revenue mix by geography:
Revenue mix									35,494	31,487	31,949
JAPAN
Revenue mix by geography:
Revenue mix									13,328	14,205	17,826
Asia, Excluding Japan [Member]
Revenue mix by geography:
Revenue mix									11,023	11,263	8,902
Europe [Member]
Revenue mix by geography:
Revenue mix									7,792	7,358	4,958
Rest of World [Member]
Revenue mix by geography:
Revenue mix									$ 10,501	$ 10,281	$ 13,642