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Statements of Comprehensive Income - USD ($)
12 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Net income $ 14,507,936 $ 13,912,672
Unrealized gain (loss) from marketable securities, net of tax 893,275 (877,337)
Comprehensive income $ 15,401,211 $ 13,035,335