Note 5 - Income Taxes (Details Textual) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Dec. 31, 2016
Goodwill Amortization Period	15 years
Deferred Tax Assets, Net of Valuation Allowance	$ 1.6
Deferred Tax Assets, Valuation Allowance	$ 12.7
Operating Loss Carryforwards		$ 40.2
Portion Subject to an IRS Section 382 Limitation [Member]
Operating Loss Carryforwards		$ 0.1