Note 12 - Subsequent Events (Details) (USD $)	12 Months Ended		1 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Jan. 31, 2015
Note 12 - Subsequent Events (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	462,500	658,000
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price	$ 2.37	$ 1.10
Subsequent Event [Member] | 1st Anniversary [Member] | Board Members [Member] | Option Plan 2010 [Member]
Note 12 - Subsequent Events (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage			50.00%
Subsequent Event [Member] | 2nd Anniversary [Member] | Board Members [Member] | Option Plan 2010 [Member]
Note 12 - Subsequent Events (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage			50.00%
Subsequent Event [Member] | Each Board Member [Member] | Option Plan 2010 [Member]
Note 12 - Subsequent Events (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross			100,000
Subsequent Event [Member] | Board Members [Member] | Option Plan 2010 [Member]
Note 12 - Subsequent Events (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross			200,000
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price			1.79