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Consolidated Statements of Stockholders' Equity - USD ($)	Common Stock Par Value $.01	Additional Paid-In Capital	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit	Total
Beginning balance (shares) at Feb. 28, 2017	14,961,076
Beginning balance at Feb. 28, 2017	$ 149,611	$ 8,859,486	$ 42,250	$ (1,128,322)	$ 7,923,025
Exercise of stock options (shares)	15,568
Exercise of stock options	$ 156	55			211
Stock based compensation expense		31,536			31,536
Unrealized gain on marketable securities			111,137		111,137
Net Income				264,956	264,956
Ending balance (shares) (unaudited) at Nov. 30, 2017	14,976,644
Ending balance (unaudited) at Nov. 30, 2017	$ 149,767	8,891,077	153,387	(863,366)	8,330,865
Beginning balance (shares) at Feb. 28, 2018	14,986,367
Beginning balance at Feb. 28, 2018	$ 149,864	8,901,171	101,605	(760,115)	$ 8,392,525
Reclassification of unrealized gain on marketable securities upon adoption of ASU 2016-01			(101,605)	101,605
Exercise of stock options (shares)	205,358				205,538
Exercise of stock options	$ 2,054	(2,054)
Stock based compensation expense		22,777			$ 22,777
Unrealized gain on marketable securities
Net Income				100,813	100,813
Ending balance (shares) (unaudited) at Nov. 30, 2018	15,191,725
Ending balance (unaudited) at Nov. 30, 2018	$ 151,918	$ 8,921,894		$ (557,697)	$ 8,516,115

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