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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

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Fair value, after offset of derivative asset, of financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, elected not to be and before offset against a right to receive collateral under a master netting arrangement. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

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Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

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Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt.

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FAIR VALUE MEASUREMENTS (Details) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
FAIR VALUE MEASUREMENTS (Details) - USD ($) $ in Thousands	Mar. 31, 2015	Jan. 31, 2016	Jan. 31, 2015	Jan. 31, 2014
Key Assumptions [Abstract]
Discount rate		4.60%
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents deposited with commercial banks		$ 24,000	$ 22,000
Derivatives, Fair Value [Line Items]
Fair value of derivative instrument		(675)	(626)
Maximum [Member]
Key Assumptions [Abstract]
Contingent consideration paid	$ 800
Recurring [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market mutual funds		113,984	98,294
Liability related to interest rate swap		0	0
Contingent liability associated with acquisitions		0	0
Recurring [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market mutual funds		0	0
Liability related to interest rate swap		(675)	(626)
Contingent liability associated with acquisitions		0	0
Recurring [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market mutual funds		0	0
Liability related to interest rate swap		0	0
Contingent liability associated with acquisitions		0	(750)
Interest Rate Swap [Member]
Derivatives, Fair Value [Line Items]
Change in fair value recognized in net income		(48)	(877)	$ 634
Interest Rate Swap [Member] \| Designated as Hedging Instrument [Member] \| Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative instrument		$ (675)	$ (626)