Stockholders' Equity (Details 3) $ / shares in Units, $ in Thousands	9 Months Ended
Oct. 31, 2019 USD ($) $ / shares shares
Stockholders' equity
Number of options outstanding, beginning \| shares	0
Number of options granted \| shares	24,900
Number of options outstanding, ending \| shares	24,900
Number of options exercisable \| shares	0
Weighted average exercise price outstanding, beginning	$ 0.00
Weighted average exercise price granted	11.17
Weighted average exercise price outstanding, ending	11.17
Weighted average exercise price exercisable	$ .00
Weighted average remaining contractual term outstanding (in years)	9 years 9 months 15 days
Aggregate intrinsic value outstanding, beginning \| $	$ 0
Aggregate intrinsic value granted	$ 0
Aggregate intrinsic value outstanding, ending \| $	$ 0
Aggregate intrinsic value exercisable \| $	$ 0

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iii)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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- Definition

The grant-date intrinsic value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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Gross number of share options (or share units) granted during the period.

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Number of options outstanding, including both vested and non-vested options.

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-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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Amount by which current fair value of underlying stock exceeds exercise price of fully vested and expected to vest options outstanding. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

+ References

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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