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6. EMPLOYEE BENEFIT PLAN (Details) - 401(k) Plan [Member] - USD ($) | 12 Months Ended
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Feb. 28, 2019 | Feb. 28, 2018
6. EMPLOYEE BENEFIT PLAN (Details) [Line Items] |  |
Defined Benefit Plan, Plan Assets, Contributions by Employer | $ 133,300 | $ 89,400
Stock Issued During Period, Shares, Treasury Stock Reissued | 40,641 | 9,602

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