XML 92 R77.htm IDEA: XBRL DOCUMENT v3.8.0.1
Note 14 - Earnings Per Common Share - Summary of Basic and Diluted Earnings Per Common Share (Details) - USD ($)
 3 Months Ended 12 Months Ended
Dec. 31, 2017
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2017
Dec. 31, 2016
Sep. 30, 2016
Jun. 30, 2016
Mar. 31, 2016
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Numerator for basic and diluted earnings per common share:                      
Net income for the year $ 11,199 $ 3,439 $ 5,241 $ 2,446 $ 2,817 $ 4,741 $ 4,071 $ 4,438 $ 22,326,594 $ 16,067,154 $ 11,373,730
Basic weighted average number of common shares outstanding (in shares)                 10,537,356 10,524,856 10,968,500
Effect of stock options (in shares)                 256,266 188,739 391,584
Diluted weighted average number of shares outstanding (in shares)                 10,793,622 10,713,595 11,360,084
Basic earnings per common share (in dollars per share) $ 1.06 $ 0.33 $ 0.50 $ 0.23 $ 0.27 $ 0.45 $ 0.39 $ 0.42 $ 2.12 $ 1.53 $ 1.04
Diluted earnings per common share (in dollars per share) $ 1.04 $ 0.32 $ 0.49 $ 0.23 $ 0.26 $ 0.45 $ 0.38 $ 0.41 $ 2.07 $ 1.50 $ 1