Note 10 - Income Taxes (Details Textual) - USD ($)	12 Months Ended
	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Foreign Tax Authority [Member]
Operating Loss Carryforwards		$ 4,000,000
Domestic Tax Authority [Member]
Deferred Tax Assets, Valuation Allowance	$ 8,000,000
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	34.00%
Deferred Tax Assets, Operating Loss Carryforwards, Domestic	$ 27,100,000
Deferred Tax Assets, Operating Loss Carryforwards Not Recognized, Domestic	23,300,000
Operating Loss Carryforwards, Amount Projected to be Utilized for the Tax Year Domestic	560,000
Deferred Tax Assets, Operating Loss Carryforwards, Foreign	13,000,000
Deferred Tax Assets, Valuation Allowance	$ 8,014,000		$ 11,029,000