Debt	3 Months Ended
Apr. 30, 2014
Debt [Abstract]
Debt Disclosure [Text Block]	Debt. Debt totaled $32.6 million at April 30, 2014, a net increase of $0.9 million since January 31, 2014. 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 $25 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 specific levels of profitability and cash flows. At April 30, 2014, 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) prime rate; or (b) 2% plus the LIBOR rate for the corresponding interest period. As of April 30, 2014, the Company had borrowed $10.2 million at prime and LIBOR rates and had $7.6 million available to it under the revolving line of credit. In addition, $0.1 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, 2014, the amount of such restricted cash was $0.1 million. Cash required for operations is provided by draw downs on the line of credit. Revolving lines foreign. The Company also has credit arrangements used by its Danish and Middle Eastern subsidiaries. These credit arrangements are in the form of overdraft facilities and project financing at rates competitive in the countries in which the Company operates. The credit arrangement covenant requires a minimum tangible net worth to be maintained. At April 30, 2014, the Company was in compliance with the covenant under the credit arrangement. Interest rates are as follows 4.00% per annum below National Bank of Fujairah Base Rate, minimum 3.50% per annum and Emirates Inter Bank Offered Rate (EIBOR) plus 3.50% per annum. The Company's interest rates range from 3.5% to 6%. At April 30, 2014, borrowings under these credit arrangements totaled $3.4 million; an additional $22.4 million remained unused.

Debt. Debt totaled $32.6 million at April 30, 2014, a net increase of $0.9 million since January 31, 2014.

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 $25 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 specific levels of profitability and cash flows. At April 30, 2014, 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) prime rate; or (b) 2% plus the LIBOR rate for the corresponding interest period. As of April 30, 2014, the Company had borrowed $10.2 million at prime and LIBOR rates and had $7.6 million available to it under the revolving line of credit. In addition, $0.1 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, 2014, the amount of such restricted cash was $0.1 million. Cash required for operations is provided by draw downs on the line of credit.

Revolving lines foreign. The Company also has credit arrangements used by its Danish and Middle Eastern subsidiaries. These credit arrangements are in the form of overdraft facilities and project financing at rates competitive in the countries in which the Company operates. The credit arrangement covenant requires a minimum tangible net worth to be maintained. At April 30, 2014, the Company was in compliance with the covenant under the credit arrangement. Interest rates are as follows 4.00% per annum below National Bank of Fujairah Base Rate, minimum 3.50% per annum and Emirates Inter Bank Offered Rate (EIBOR) plus 3.50% per annum. The Company's interest rates range from 3.5% to 6%. At April 30, 2014, borrowings under these credit arrangements totaled $3.4 million; an additional $22.4 million remained unused.