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Registered Direct Offering -Common Stock | 6 Months Ended
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Jul. 31, 2021
Equity [Abstract] |
Registered Direct Offering - Common Stock | 8. Registered Direct Offering – Common Stock On February 5, 2021, the Company sold, pursuant to a stock purchase agreement and through a registered direct offering, an aggregate of 11,111,111 shares of its common stock, for a gross purchase price of $5.0 million, before payment of offering costs of $0.6 million. The Company used the net proceeds from the offering for working capital and other general corporate purposes.

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