Note 3 - Fair Value Measurements - Level 3 Roll-forward (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2015	Dec. 31, 2014
Fair Value, Inputs, Level 3 [Member]
Balance	$ 168	$ 339
Change in fair value	4	11
Payout of contingent consideration	(113)	(182)
Balance		168
Balance	168
Payout of contingent consideration	$ (113)
Balance		$ 168
Deconsolidation of affiliate	$ (59)