Contracts and Notes Receivable	12 Months Ended
Contracts and Notes Receivable	Jan. 31, 2015
Receivables [Abstract]
Contracts and Notes Receivable	6. Contracts and Notes Receivable Contracts and notes receivable consisted of $3.6 million, due from three customers as of January 31, 2015 and $1.0 million due from three customers as of January 31, 2014. The balance of contracts receivable at January 31, 2015 and 2014 consisted of contracts bearing interest at an average of approximately 1.9% and 8.5% respectively and with remaining repayment terms from one to ten months and two to eight months, respectively. These contracts are collateralized by the equipment sold and are considered collectable, thus no allowances have been established for them.

The entire disclosure for claims held for amounts due a entity, excluding financing receivables. Examples include, but are not limited to, trade accounts receivables, notes receivables, loans receivables. Includes disclosure for allowance for credit losses.

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