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INCOME TAXES - Schedule of Tax Effects of Temporary Differences that Gave Rise to Deferred Tax Assets and Liabilities (Details) - USD ($)
Jan. 31, 2016
Jan. 31, 2015
Assets:    
Net operating loss carryforwards $ 3,345,000  
Stock options 2,354,000 $ 1,649,000
Accrued expenses 2,144,000 428,000
Purchased intangibles and other 2,233,000 1,239,000
Total Assets 10,076,000 3,316,000
Liabilities:    
Purchased intangibles (4,375,000) (2,931,000)
Construction contracts (3,681,000) (830,000)
Property, equipment and other (2,244,000) (565,000)
Total Liabilities (10,300,000) (4,326,000)
Net deferred tax liabilities (224,000) $ (1,010,000)
Net operating losses $ 8,748,000