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Note 4 - Operating Leases - Future Minimum Lease Payments (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Note 4 - Operating Leases - Future Minimum Lease Payments Details  
2015 $ 573us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent
2016 380us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears
2017 324us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears
2018 268us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears
2019 $ 123us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears