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Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($)
Common Stock Par Value $.01
Additional Paid-In Capital
Accumulated Earnings
Total
Beginning balance, value at Feb. 29, 2020 $ 153,482 $ 9,018,406 $ 610,519 $ 9,782,407
Shares, Outstanding, Beginning Balance at Feb. 29, 2020 15,348,180      
Stock based compensation expense   8,097   8,097
Cashless exercise of stock options $ 748 (748)  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period 74,805      
Net Income     167,928 167,928
Ending balance, value at May. 31, 2020 $ 154,230 9,025,755 778,447 9,958,432
Shares, Outstanding, Ending Balance at May. 31, 2020 15,422,985      
Beginning balance, value at Feb. 29, 2020 $ 153,482 9,018,406 610,519 9,782,407
Shares, Outstanding, Beginning Balance at Feb. 29, 2020 15,348,180      
Net Income       345,691
Ending balance, value at Aug. 31, 2020 $ 154,360 9,033,531 956,210 10,144,101
Shares, Outstanding, Ending Balance at Aug. 31, 2020 15,435,935      
Beginning balance, value at May. 31, 2020 $ 154,230 9,025,755 778,447 9,958,432
Shares, Outstanding, Beginning Balance at May. 31, 2020 15,422,985      
Stock based compensation expense   7,906   7,906
Cashless exercise of stock options $ 130 (130)  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period 12,950      
Net Income     177,763 177,763
Ending balance, value at Aug. 31, 2020 $ 154,360 9,033,531 956,210 10,144,101
Shares, Outstanding, Ending Balance at Aug. 31, 2020 15,435,935      
Beginning balance, value at Feb. 28, 2021 $ 154,527 9,064,994 1,731,161 10,950,682
Shares, Outstanding, Beginning Balance at Feb. 28, 2021 15,452,656      
Stock based compensation expense   21,637   21,637
Cashless exercise of stock options $ 499 (499)  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period 49,901      
Net Income     1,266,752 1,266,752
Ending balance, value at May. 31, 2021 $ 155,026 9,086,132 2,997,913 12,239,071
Shares, Outstanding, Ending Balance at May. 31, 2021 15,502,557      
Beginning balance, value at Feb. 28, 2021 $ 154,527 9,064,994 1,731,161 10,950,682
Shares, Outstanding, Beginning Balance at Feb. 28, 2021 15,452,656      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period 78,629      
Net Income       1,610,576
Ending balance, value at Aug. 31, 2021 $ 155,313 9,104,925 3,341,737 12,601,975
Shares, Outstanding, Ending Balance at Aug. 31, 2021 15,531,285      
Beginning balance, value at May. 31, 2021 $ 155,026 9,086,132 2,997,913 12,239,071
Shares, Outstanding, Beginning Balance at May. 31, 2021 15,502,557      
Stock based compensation expense   19,080   19,080
Cashless exercise of stock options $ 287 (287)  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period 28,728      
Net Income     343,824 343,824
Ending balance, value at Aug. 31, 2021 $ 155,313 $ 9,104,925 $ 3,341,737 $ 12,601,975
Shares, Outstanding, Ending Balance at Aug. 31, 2021 15,531,285