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Retention
12 Months Ended
Jan. 31, 2016
Retention [Abstract]  
Retention
Note 5 - Retention

Retention receivable is the amount withheld by a customer until a contract is completed. Retention receivables of $2.8 million and $5.7 million were included in the balance of trade accounts receivable as of January 31, 2016 and 2015, respectively. Retention receivable of $3.2 million was included in the balance of other long-term assets as of January 31, 2016 due to the long-term nature of the receivables.