STOCK-BASED COMPENSATION STOCK-BASED COMPENSATION - STOCK BONUS PROGRAM - (Details) - Stock Bonus Program - shares	9 Months Ended
Oct. 31, 2018	Oct. 31, 2017
Stock-Based Compensation Plans
Vesting period for executive officers (in years)	1 year
Trailing period of average price of common stock to determine the number of shares to be issued (in days)	5 days
Stock Issued During Period, Shares, Issued for Services	19,000	21,000
Shares Granted In Respect of Discount	0	0
Shares Released In Respect of Discount	0	0
2019 Plan
Stock-Based Compensation Plans
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized	125,000
Discount from market price (as a percent)	15.00%

Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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Discount rate from fair value on purchase date that participants pay for shares.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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Number of shares issued in lieu of cash for services contributed to the entity. Number of shares includes, but is not limited to, shares issued for services contributed by vendors and founders.

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Represents the trailing period of average price of common stock to determine the number of shares to be issued under the share-based compensation plan.

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- Definition

Represents the number of shares of common stock granted to plan participants in respect of discount provided under share-based compensation plan.

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Represents the number of shares of common stock that were granted and to plan participants, and released, in respect of discount provided under share-based compensation plan.

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