Annual report pursuant to Section 13 and 15(d)

Note 4 - Stockholders' Equity - Summary of Restricted Stock Activity (Details)

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Note 4 - Stockholders' Equity - Summary of Restricted Stock Activity (Details) - Restricted Stock [Member]
12 Months Ended
Dec. 31, 2018
$ / shares
shares
Outstanding (in shares) | shares 49,960
Outstanding, Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares $ 3
Granted (in shares) | shares 45,046
Granted, Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares $ 1.11
Vested (in shares) | shares (72,483)
Vested, Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares $ 2.41
Outstanding (in shares) | shares 22,523
Outstanding, Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares $ 1.11