INVESTMENTS (Details) - USD ($) $ in Thousands	9 Months Ended
Oct. 31, 2019	Oct. 31, 2018	Jan. 31, 2019
INVESTMENTS (Details) [Line Items]
Retained Earnings, Undistributed Earnings from Equity Method Investees	$ 11,400		$ 12,000
Proceeds from Equity Method Investment, Distribution	1,003	$ 3,007
Debt Securities, Held-to-maturity, Maturity, Rolling within One Year, Weighted Average Yield			2.29%
Estimate of Fair Value Measurement [Member]
INVESTMENTS (Details) [Line Items]
Proceeds from Equity Method Investment, Distribution	$ 1,000	$ 3,000

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- Definition

Weighted average yield of investment in debt security measured at amortized cost (held-to-maturity), maturing in next rolling fiscal year following latest fiscal year. For interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.

+ References

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-Publisher SEC
-Name Industry Guide
-Number 3
-Section II
-Paragraph B

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- Definition

Amount of distribution received from equity method investee for return on investment, classified as operating activities. Excludes distribution for return of investment, classified as investing activities.

+ References

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Amount of consolidated retained earnings that represent undistributed (not yet received) earnings from 50% or less owned persons accounted for by the equity method (equity method investees).

+ References

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