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Note 12 - 401k Retirement Benefit Plan (Details Narrative) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Note 12 - 401k Retirement Benefit Plan Details Narrative    
Defined Contribution Plan, Employer Matching Contribution, As A Percentage Of Employee's Contribution 50.00% 50.00%
Defined Contribution Plan, Maximum Employee Contribution Percentage Subject To Employer Matching Contribution 4.00% 4.00%
Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan. 2.00% 2.00%
Employer discretionary contribution $ 201 $ 164