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Note 10 - Federal and State Income Tax Net Operating Loss Carryforwards (Details) $ in Thousands	Dec. 31, 2015 USD ($)
Expires in 2020 [Member]
Operating loss carryforwards	$ 15
Expire in 2021 [Member]
Operating loss carryforwards	5
Expires in 2028 [Member]
Operating loss carryforwards	8,748
Expires in 2029 [Member]
Operating loss carryforwards	3,480
Expires in 2033 [Member]
Operating loss carryforwards	73,102
Expires in 2034 [Member]
Operating loss carryforwards	40,026
ExpiresIn2035Member
Operating loss carryforwards	28,465
Operating loss carryforwards	$ 153,841