Quarterly report pursuant to Section 13 or 15(d)

Note 1 - Nature of Operations and Summary of Significant Accounting Policies - Earnings (Loss) Per Common Share (Details)

v3.19.2
Note 1 - Nature of Operations and Summary of Significant Accounting Policies - Earnings (Loss) Per Common Share (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Net income (loss) $ 462,260 $ (50,838) $ 1,414,905 $ (82,453)
Basic weighted average shares (in shares) 13,797,497 13,622,710 13,774,474 13,605,370
Unvested restricted stock and stock options (in shares) 679,510 615,845
Weighted average common shares outstanding - diluted (in shares) 14,477,007 13,622,710 14,390,320 13,605,370
Basic earnings (loss) per share (in dollars per share) $ 0.03 $ 0.10 $ (0.01)
Diluted earnings (loss) per share (in dollars per share) $ 0.03 $ 0.10 $ (0.01)
Restricted Stock [Member]        
Anti-dilutive securities (in shares)     2,569  
Share-based Payment Arrangement, Option [Member]        
Anti-dilutive securities (in shares)     41,035