Annual report pursuant to Section 13 and 15(d)

Note 10 - Income Taxes - Unrecognized Tax Benefit Roll Forward (Details)

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Note 10 - Income Taxes - Unrecognized Tax Benefit Roll Forward (Details) - USD ($)
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Balance $ 128,000 $ 97,000
Additions based upon tax positions related to the current year 140,000 31,000
Balance $ 268,000 $ 128,000