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Consolidated Statements of Changes in Stockholders' Equity - USD ($)
Common Stock [Member]
Additional Paid-in Capital [Member]
Retained Earnings [Member]
Treasury Stock [Member]
Total
Beginning Balance at Mar. 31, 2020 $ 1,053,583 $ 7,339,351 $ 317,429 $ (346,001) $ 8,364,362
Beginning balance, shares at Mar. 31, 2020         2,107,166
Beginning balance, held in treasury, shares at Mar. 31, 2020         (67,000)
Net income 155,932 $ 155,932
Issuance of stock through options exercised 18,250 229,185 247,435
Stock based compensation 55,678 $ 55,678
Common stock shares, issued         36,500
Common stock shares, held in treasury, Acquisitions, shares        
Ending Balance at Mar. 31, 2021 1,071,833 7,624,214 473,361 (346,001) $ 8,823,407
Ending balance, shares at Mar. 31, 2021         2,143,666
Ending balance, held in treasury, shares at Mar. 31, 2021         (67,000)
Common stock shares, outstanding at Mar. 31, 2021         2,076,666
Net income 2,855,066 $ 2,855,066
Issuance of stock through options exercised 36,375 422,195 458,570
Stock based compensation 87,573 $ 87,573
Common stock shares, issued         72,750
Common stock shares, held in treasury, Acquisitions, shares        
Ending Balance at Mar. 31, 2022 $ 1,108,208 $ 8,133,982 $ 3,328,427 $ (346,001) $ 12,224,616
Ending balance, shares at Mar. 31, 2022         2,216,416
Ending balance, held in treasury, shares at Mar. 31, 2022         (67,000)
Common stock shares, outstanding at Mar. 31, 2022         2,149,416