Annual report pursuant to Section 13 and 15(d)

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

v3.19.1
Note 4 - Stockholders' Equity - Summary of Restricted Stock Unit Activity (Details) - Restricted Stock Units (RSUs) [Member]
12 Months Ended
Dec. 31, 2018
$ / shares
shares
Outstanding (in shares) | shares 11,235
Outstanding, Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares $ 11.77
Granted (in shares) | shares 45,046
Granted, Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares $ 1.11
Exercised and converted to common shares (in shares) | shares 0
Exercised and converted to common shares, Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares
Forfeited (in shares) | shares
Forfeited, Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares
Outstanding (in shares) | shares 56,281
Outstanding, Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares $ 3.24
Exercisable (in shares) | shares 33,759
Exercisable, Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares $ 4.66