Note 6 - Income Taxes (Details Textual) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Effective Income Tax Rate Reconciliation, Percent	0.00%	0.00%	0.00%	0.00%
Net Income (Loss) Attributable to Parent	$ 529	$ 98	$ (516)	$ (689)