Note 5 - Goodwill and Intangible Assets - Intangible Assets and Related Accumulated (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2015	Dec. 31, 2014
Nonamortizing indefinite-lived, intangible assets, gross	$ 900	$ 900
Weighted average amortization period	5 years	5 years
Amortizing definite-lived, intangible assets, gross	$ 100	$ 368
Intangible assets, accumulated amortization	53	97
Amortizing definite-lived, intangible assets, net	47	271
Intangible assets, gross	1,000	1,268
Intangible assets, net	$ 947	$ 1,171