Note 18 - Income Taxes - State Net Operating Loss Carryforwards (Details) - State and Local Jurisdiction [Member] $ in Thousands	Dec. 31, 2016 USD ($)
Operating loss carryforwards	$ 336
Operating Loss Carryforward Expiring Year Three [Member]
Operating loss carryforwards	13
Operating Loss Carryforward, Expiring Year Five [Member]
Operating loss carryforwards	207
Operating Loss Carryforward Expiring After Year Five [Member]
Operating loss carryforwards	$ 116