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INCOME TAXES - Schedule of Tax Effects of Temporary Differences that Gave Rise to Deferred Tax Assets and Liabilities (Details 3) - USD ($) | Oct. 31, 2015 | Jan. 31, 2015
--- | --- | ---
Assets: |  |
Stock options | $ 2,117,000 | $ 1,649,000
Purchased intangibles | 1,009,000 | 1,132,000
Accrued liabilities and other | 462,000 | 535,000
Total Assets | 3,588,000 | 3,316,000
Liabilities: |  |
Purchased intangibles | (3,227,000) | (2,931,000)
Construction contracts | (1,932,000) | (830,000)
Property, equipment and other | (619,000) | (565,000)
Total Liabilities | (5,778,000) | (4,326,000)
Net deferred tax liabilities | $ (2,190,000) | $ (1,010,000)

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