Note 4 - Goodwill and Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization of Intangible Assets	$ 166	$ 106	$ 335	$ 172
Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year	817		817
Finite-Lived Intangible Assets, Amortization Expense, Year Two	1,113		1,113
Finite-Lived Intangible Assets, Amortization Expense, Year Three	1,113		1,113
Finite-Lived Intangible Assets, Amortization Expense, Year Four	1,113		1,113
Finite-Lived Intangible Assets, Amortization Expense, Year Five	$ 1,113		$ 1,113