XML 45 R36.htm IDEA: XBRL DOCUMENT v3.22.1
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Earnings per share (Details) - USD ($)
 3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Earnings per share    
Common Stock underlying issued and outstanding stock options 96,244 152,967
Common stock issuable upon the conversion of convertible preferred shares 232,445 257,945
Diluted EPS calculated under the treasury stock method 328,689 410,912
Net income $ 7,616,455 $ 17,955,884
Preferred stock dividend requirements (58,111) (64,938)
Net income applicable to common shareholders $ 7,558,344 $ 17,890,946
Average common shares outstanding 33,265,453 33,967,771
Average common and common equivalent shares outstanding - assuming dilution 33,594,142 34,378,683
Basic earnings per share $ 0.23 $ 0.53
Diluted earnings per share $ 0.23 $ 0.52