Debt	3 Months Ended
Apr. 30, 2013
Debt [Abstract]
Debt Disclosure [Text Block]	Debt. On July 11, 2002, the Company entered into a secured loan and security agreement with a financial institution ("Loan Agreement"). Under the terms of the Loan Agreement as amended, which matures on November 30, 2016, the Company can borrow up to $38 million, subject to borrowing base and other requirements, under a revolving line of credit. The Loan Agreement covenants restrict debt, liens, investments, do not permit payment of dividends and require attainment of levels of profitability and cash flows. At April 30, 2013, the Company was in compliance with all covenants under the Loan Agreement. Interest rates are based on options selected by the Company as follows: (a) a margin in effect plus prime rate; or (b) a margin in effect plus the LIBOR rate for the corresponding interest period. At April 30, 2013, the prime rate was 3.25% and the margins added to the prime and LIBOR rates, which are determined each quarter based on the applicable financial statement ratio, were 0.50 and 2.75 percentage points, respectively. Monthly interest payments were made during the three months ended April 30, 2013 and 2012. As of April 30, 2013, the Company had borrowed $9 million and had $10 million available to it under the revolving line of credit. In addition, $0.2 million of availability was used under the Loan Agreement primarily to support letters of credit to guarantee amounts committed for inventory purchases. The Loan Agreement provides that all domestic receipts are deposited in a bank account from which all funds may only be used to pay the debt under the Loan Agreement. At April 30, 2013, the amount of such restricted cash was $0.8 million. Cash required for operations is provided by draw downs on the line of credit. During the quarter the Company's foreign subsidiary in the U.A.E. drew upon its revolving lines for $4.9 million. The interest rates were 6%. Quarterly interest payments are made. In February 2013, the Company entered into an Islamic loan (line of credit) in Saudi Arabia for $2.7 million The interest rate is SIBOR (Singapore Interbank Offered Rate) plus a margin of 3.5%. Quarterly interest payments are made.

Debt

3 Months Ended

Apr. 30, 2013

Debt. On July 11, 2002, the Company entered into a secured loan and security agreement with a financial institution ("Loan Agreement"). Under the terms of the Loan Agreement as amended, which matures on November 30, 2016, the Company can borrow up to $38 million, subject to borrowing base and other requirements, under a revolving line of credit. The Loan Agreement covenants restrict debt, liens, investments, do not permit payment of dividends and require attainment of levels of profitability and cash flows. At April 30, 2013, the Company was in compliance with all covenants under the Loan Agreement. Interest rates are based on options selected by the Company as follows: (a) a margin in effect plus prime rate; or (b) a margin in effect plus the LIBOR rate for the corresponding interest period. At April 30, 2013, the prime rate was 3.25% and the margins added to the prime and LIBOR rates, which are determined each quarter based on the applicable financial statement ratio, were 0.50 and 2.75 percentage points, respectively. Monthly interest payments were made during the three months ended April 30, 2013 and 2012. As of April 30, 2013, the Company had borrowed $9 million and had $10 million available to it under the revolving line of credit. In addition, $0.2 million of availability was used under the Loan Agreement primarily to support letters of credit to guarantee amounts committed for inventory purchases. The Loan Agreement provides that all domestic receipts are deposited in a bank account from which all funds may only be used to pay the debt under the Loan Agreement. At April 30, 2013, the amount of such restricted cash was $0.8 million. Cash required for operations is provided by draw downs on the line of credit.

During the quarter the Company's foreign subsidiary in the U.A.E. drew upon its revolving lines for $4.9 million. The interest rates were 6%. Quarterly interest payments are made.

In February 2013, the Company entered into an Islamic loan (line of credit) in Saudi Arabia for $2.7 million The interest rate is SIBOR (Singapore Interbank Offered Rate) plus a margin of 3.5%. Quarterly interest payments are made.