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Debt (Details) (USD $)	3 Months Ended	6 Months Ended	3 Months Ended						3 Months Ended			3 Months Ended
	Jul. 31, 2013	Jul. 31, 2013	Jul. 31, 2013 Accounts receivable	Jul. 31, 2013 Inventory	Jul. 31, 2013 Maximum	Jul. 31, 2013 Maximum Accounts receivable	Jul. 31, 2013 Minimum	Jul. 31, 2013 P.N.C Revolving Credit Facility	Jul. 14, 2012 P.N.C Revolving Credit Facility Amendment No. 1 to the Credit Agreement	Dec. 22, 2011 P.N.C Revolving Credit Facility Credit Agreement	Jul. 27, 2012 P.N.C Revolving Credit Facility Amendment No. 2 to the Credit Agreement	Jul. 31, 2013 London Interbank Offered Rate L.I.B.O.R Alternate Base Rate loans Maximum	Jul. 31, 2013 London Interbank Offered Rate L.I.B.O.R Alternate Base Rate loans Minimum	Jul. 31, 2013 Eurodollar Maximum	Jul. 31, 2013 Eurodollar Minimum
Line of Credit Facility [Line Items]
Line of Credit Facility, Increase in Borrowing Capacity									$ 3,000,000
Debt (Textual) [Abstract]
Revolving Credit Facility borrowing base limitation			85.00%	60.00%		85.00%
Revolving Credit Facility, range		60,000,000			14,000,000		4,000,000
Revolving Credit Facility bears interest, range												1.75%	0.75%	2.75%	1.75%
Line of Credit Facility, Covenant, Minimum EBITDA										1,600,000	300,000
Line of Credit Facility, Remaining Borrowing Capacity								20,192,000
Debt (Additional Textual) [Abstract]
Sub-limit for issuances of letters of credit	3,000,000
Revolving Credit Facility bears interest increased	2.00%
Provision to reduce borrowings under the line	6,000,000
Provision to reduce borrowings under the line, Period	60 days
Judgments or judicial actions against the Borrowers in excess	$ 250,000

X

- Details

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X

- Definition

Maximum amount borrowed under the credit facility at any time during the period.

+ References

No definition available.

+ Details

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X

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19(b),22(b))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

+ Details

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X

- Definition

The percentage points added to the reference rate or index during the adjustment period to compute the variable [fully indexed] rate on the loans receivable realized during the reporting period. This may be an effective margin for the period depending on the specific terms of the underlying loan agreement (for example, an annual disclosure for a loan with a quarterly adjustment period).

+ References

No definition available.

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- Details

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- Definition

Debt instrument, covenant, minimum ebitda

+ References

No definition available.

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- Definition

Judicial actions against excess line of credit facility

+ References

No definition available.

+ Details

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- Definition

Line of credit facility borrowing base limitation.

+ References

No definition available.

+ Details

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- Definition

Line of credit facility increase accrued interest percentage.

+ References

No definition available.

+ Details

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- Definition

Line of Credit Facility, Increase in Borrowing Capacity

+ References

No definition available.

+ Details

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- Definition

Line of credit facility sub- limit.

+ References

No definition available.

+ Details

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- Definition

Provision to reduce borrowings under line of credit facility for period.

+ References

No definition available.

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- Definition

Provision to requires reduce borrowings under line of credit facility.

+ References

No definition available.

+ Details

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