Note 8 - Summary of Stock Options (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Note 8 - Summary of Stock Options (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant	227,739
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	635,000
Allocated Share-based Compensation Expense	$ 42,000	$ 13,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options	597,000
Employee Stock Option [Member]
Note 8 - Summary of Stock Options (Details) [Line Items]
Allocated Share-based Compensation Expense	$ 42,000	$ 13,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	3 years 204 days
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate	0.00%	0.00%
2005 Plan [Member]
Note 8 - Summary of Stock Options (Details) [Line Items]
Common Stock, Capital Shares Reserved for Future Issuance	22,095
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	22,095
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price	$ 12.83
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term	2 years 40 days
The 2006 Stock Option Plan [Member]
Note 8 - Summary of Stock Options (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	322,069
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price	$ 1.54
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term	7 years 208 days
Conversion of Stock, Exchange Ratio	0.0080497
The 2013 Plan [Member] | Holdings Greater than 10% of Shares Outstanding [Member]
Note 8 - Summary of Stock Options (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period	5 years
The 2013 Plan [Member]
Note 8 - Summary of Stock Options (Details) [Line Items]
Common Stock, Capital Shares Reserved for Future Issuance	227,739
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	2,561,619
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price	$ 0.72
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term	9 years 167 days
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period	10 years
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	4 years
Share-based Compensation Arrangement by Share-based Payment Award, Percentage of Outstanding Stock Maximum	10.00%
Share-based Compensation Arrangement by Share-based Payment Award, Purchase Price of Common Stock, Percent	110.00%
Employees [Member]
Note 8 - Summary of Stock Options (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	635,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value	$ 0.25