Debt	6 Months Ended
Jul. 31, 2018
Debt Disclosure [Abstract]
Debt Disclosure [Text Block]	Debt Debt totaled $17.2 million at July 31, 2018, a net increase of $1.4 million since January 31, 2018. Revolving lines North America. On September 24, 2014, the Company entered into a Credit and Security Agreement with a financial institution (as amended, "Credit Agreement"). Under the terms of the Credit Agreement, which matures on September 25, 2018, the Company can borrow up to a combined $15.0 million in the U.S. and Canada, subject to borrowing base availability from secured domestic and certain Canadian assets, such as accounts receivable and inventory, and other requirements, under a revolving line of credit. The Credit Agreement covenants restrict debt, liens, share repurchases and investments, and require achieving a minimum fixed charge coverage ratio with respective performance metrics as defined by the Credit Agreement if a minimum availability is not met. In a seventh amendment to the Credit Agreement executed on December 14, 2017, the lenders increased the borrowing limit for the Company’s Canadian subsidiary and adjusted minimum availability requirements for borrowers in the U.S. and Canada with a limited waiver of related covenant non-compliance retroactive to October 31, 2017. On June 5, 2018, the Company completed an eighth amendment to the Credit Agreement. The lenders extended the minimum availability requirements for the Company’s Canadian subsidiary through August 1, 2018. Furthermore, the lenders waived the technical reporting event of default which resulted from the Company applying a non-conforming method in calculating the Canadian availability as of April 30, 2018. Based on the waiver received on June 5, 2018, the Company was in compliance with all covenants under the Credit Agreement as of April 30, 2018, and the lenders extended the minimum availability requirements for the Company’s Canadian subsidiary, through August 1, 2018. On August 1, 2018 the Company received a ninth amendment to the Credit Agreement, in which the lenders adjusted the minimum availability requirements for borrowers in the U.S. and Canada through September 15, 2018. As of July 31, 2018, the Company was in compliance with all covenants under the Credit Agreement. The Credit Agreement balances as of July 31, 2018 and January 31, 2018 were included as current liabilities in the Company's consolidated balance sheets, because the Credit Agreement has a subjective acceleration clause, and expires in less than 12 months. The Credit Agreement will expire on September 25, 2018. See “Note 13 – Subsequent events” for information on the Company’s potential new replacement credit facility. Interest rates vary based on the average availability in the preceding fiscal quarter and are: (a) a margin in effect plus a base rate, if below certain availability limits; or (b) a margin in effect plus the Eurodollar rate for the corresponding interest period. On July 31, 2018, the Company had borrowed $8.4 million at 10.0% and 8.7% and had $0.9 million available to it under the revolving line of credit. In addition, $0.2 million of availability was used under the Credit Agreement primarily to support letters of credit to guarantee amounts committed for inventory purchases. Cash required for operations, as needed, is provided by draw downs on the line of credit. Revolving lines foreign. The Company also has credit arrangements used by its 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 lines are secured by certain equipment, certain assets (such as accounts receivable and inventory), and a guarantee by the Company. Some credit arrangement covenants require a minimum tangible net worth to be maintained, including maintaining certain levels of intercompany subordinated debt. In addition, some of the revolving credit facilities restrict payment of dividends. On July 31, 2018, the Company was in compliance with the covenants under the credit arrangements. On July 31, 2018, interest rates were based on the Emirates Inter Bank Offered Rate (EIBOR) plus 3.5% per annum, with a minimum interest rate of 4.5% per annum. On July 31, 2018, the Company's interest rates ranged from 5.0% to 6.5%, and the Company could borrow $10.4 million under these credit arrangements. On July 31, 2018, $4.9 million of availability was used to support letters of credit to guarantee amounts committed for inventory purchases and for performance guarantees. On July 31, 2018, the Company had borrowed $1.2 million, and had an additional $4.3 million available. The foreign revolving lines balances as of July 31, and January 31, 2018, were included as current maturities of long-term debt in the Company's consolidated balance sheets. Mortgages. On July 28, 2016, the Company borrowed 8.0 million CAD (approximately $6.1 million at the prevailing exchange rate on the transaction date) from a bank in Canada under a mortgage note secured by the Company's manufacturing facility located in Alberta, Canada, that matures on December 23, 2042. The interest rate is variable, currently at 5.8%, with monthly payments of 36 thousand CAD (approximately $28 thousand) for interest; and monthly payments of 27 thousand CAD (approximately $20 thousand) for principal. Principal payments began January 2018. On June 19, 2012, the Company borrowed $1.8 million under a mortgage note secured by its manufacturing facility in Lebanon, Tennessee. The proceeds were used for payment of amounts borrowed. The loan bears interest at 4.5% with monthly payments of $13 thousand for both principal and interest and matures July 1, 2027. On June 19, 2022, and on the same day of each year thereafter, the interest rate shall adjust to the prime rate, provided that the applicable interest rate shall not adjust more than 2.0% per annum and shall be subject to a ceiling of 18.0% and a floor of 4.5%. Capital Leases. In 2017, the Company obtained three capital leases for 1.1 million CAD (approximately $0.8 million at the prevailing exchange rates on the transaction dates) to finance vehicle equipment. The interest rates for these capital leases were from 4.0% to 7.8% per annum with monthly principal and interest payments of less than $0.1 million. These leases mature from April 30, 2021 to September 29, 2022. In 2014, the Company obtained two capital leases for 0.9 million CAD (approximately $0.9 million at the prevailing exchange rate on the transaction date) to finance vehicle equipment. The interest rate for these capital leases is 3.25% per annum with monthly principal and interest payments of 14 thousand CAD. These leases matured on June 25, 2018

Debt

Debt totaled $17.2 million at July 31, 2018, a net increase of $1.4 million since January 31, 2018.

Revolving lines North America. On September 24, 2014, the Company entered into a Credit and Security Agreement with a financial institution (as amended, "Credit Agreement"). Under the terms of the Credit Agreement, which matures on September 25, 2018, the Company can borrow up to a combined $15.0 million in the U.S. and Canada, subject to borrowing base availability from secured domestic and certain Canadian assets, such as accounts receivable and inventory, and other requirements, under a revolving line of credit. The Credit Agreement covenants restrict debt, liens, share repurchases and investments, and require achieving a minimum fixed charge coverage ratio with respective performance metrics as defined by the Credit Agreement if a minimum availability is not met. In a seventh amendment to the Credit Agreement executed on December 14, 2017, the lenders increased the borrowing limit for the Company’s Canadian subsidiary and adjusted minimum availability requirements for borrowers in the U.S. and Canada with a limited waiver of related covenant non-compliance retroactive to October 31, 2017.

On June 5, 2018, the Company completed an eighth amendment to the Credit Agreement. The lenders extended the minimum availability requirements for the Company’s Canadian subsidiary through August 1, 2018. Furthermore, the lenders waived the technical reporting event of default which resulted from the Company applying a non-conforming method in calculating the Canadian availability as of April 30, 2018. Based on the waiver received on June 5, 2018, the Company was in compliance with all covenants under the Credit Agreement as of April 30, 2018, and the lenders extended the minimum availability requirements for the Company’s Canadian subsidiary, through August 1, 2018. On August 1, 2018 the Company received a ninth amendment to the Credit Agreement, in which the lenders adjusted the minimum availability requirements for borrowers in the U.S. and Canada through September 15, 2018. As of July 31, 2018, the Company was in compliance with all covenants under the Credit Agreement. The Credit Agreement balances as of July 31, 2018 and January 31, 2018 were included as current liabilities in the Company's consolidated balance sheets, because the Credit Agreement has a subjective acceleration clause, and expires in less than 12 months.

The Credit Agreement will expire on September 25, 2018. See “Note 13 – Subsequent events” for information on the

Company’s potential new replacement credit facility.

Interest rates vary based on the average availability in the preceding fiscal quarter and are: (a) a margin in effect plus a base rate, if below certain availability limits; or (b) a margin in effect plus the Eurodollar rate for the corresponding interest period. On July 31, 2018, the Company had borrowed $8.4 million at 10.0% and 8.7% and had $0.9 million available to it under the revolving line of credit. In addition, $0.2 million of availability was used under the Credit Agreement primarily to support letters of credit to guarantee amounts committed for inventory purchases. Cash required for operations, as needed, is provided by draw downs on the line of credit.

Revolving lines foreign. The Company also has credit arrangements used by its 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 lines are secured by certain equipment, certain assets (such as accounts receivable and inventory), and a guarantee by the Company. Some credit arrangement covenants require a minimum tangible net worth to be maintained, including maintaining certain levels of intercompany subordinated debt. In addition, some of the revolving credit facilities restrict payment of dividends. On July 31, 2018, the Company was in compliance with the covenants under the credit arrangements. On July 31, 2018, interest rates were based on the Emirates Inter Bank Offered Rate (EIBOR) plus 3.5% per annum, with a minimum interest rate of 4.5% per annum. On July 31, 2018, the Company's interest rates ranged from 5.0% to 6.5%, and the Company could borrow $10.4 million under these credit arrangements. On July 31, 2018, $4.9 million of availability was used to support letters of credit to guarantee amounts committed for inventory purchases and for performance guarantees. On July 31, 2018, the Company had borrowed $1.2 million, and had an additional $4.3 million available. The foreign revolving lines balances as of July 31, and January 31, 2018, were included as current maturities of long-term debt in the Company's consolidated balance sheets.

Mortgages. On July 28, 2016, the Company borrowed 8.0 million CAD (approximately $6.1 million at the prevailing exchange rate on the transaction date) from a bank in Canada under a mortgage note secured by the Company's manufacturing facility located in Alberta, Canada, that matures on December 23, 2042. The interest rate is variable, currently at 5.8%, with monthly payments of 36 thousand CAD (approximately $28 thousand) for interest; and monthly payments of 27 thousand CAD (approximately $20 thousand) for principal. Principal payments began January 2018.

On June 19, 2012, the Company borrowed $1.8 million under a mortgage note secured by its manufacturing facility in Lebanon, Tennessee. The proceeds were used for payment of amounts borrowed. The loan bears interest at 4.5% with monthly payments of $13 thousand for both principal and interest and matures July 1, 2027. On June 19, 2022, and on the same day of each year thereafter, the interest rate shall adjust to the prime rate, provided that the applicable interest rate shall not adjust more than 2.0% per annum and shall be subject to a ceiling of 18.0% and a floor of 4.5%.

Capital Leases. In 2017, the Company obtained three capital leases for 1.1 million CAD (approximately $0.8 million at the prevailing exchange rates on the transaction dates) to finance vehicle equipment. The interest rates for these capital leases were from 4.0% to 7.8% per annum with monthly principal and interest payments of less than $0.1 million. These leases mature from April 30, 2021 to September 29, 2022.

In 2014, the Company obtained two capital leases for 0.9 million CAD (approximately $0.9 million at the prevailing exchange rate on the transaction date) to finance vehicle equipment. The interest rate for these capital leases is 3.25% per annum with monthly principal and interest payments of 14 thousand CAD. These leases matured on June 25, 2018