Debt	6 Months Ended
Jul. 31, 2016
Debt [Abstract]
Debt Disclosure [Text Block]	Debt. Debt totaled $12.3 million at July 31, 2016, a net decrease of $3.2 million since January 31, 2016. Revolving lines domestic. 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 24, 2019, the Company can borrow up to $15.0 million, subject to borrowing base availability from secured domestic assets, such as accounts receivable and inventory, and other requirements, under a revolving line of credit. The Credit Agreement covenants restrict debt, liens, and investments, and require attainment of specific levels of profitability and cash flows. At July 31, 2016, the Company was in compliance with loan covenants. The domestic revolving line balance as of July 31, 2016 and January 31, 2016 was included as a current liability in the consolidated balance sheets. 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. As of July 31, 2016, the Company had borrowed $3.8 million at 3.5% and 2.22% and had $7.0 million available to it under the revolving line of credit. In addition, $0.3 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 had 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 of credit are secured by certain equipment, certain assets, such as accounts receivable and inventory, and a guarantee by the Company. The Company's credit arrangement covenants require a minimum tangible net worth to be maintained. At July 31, 2016, the Company was in compliance with the covenants under the credit arrangements. At July 31, 2016, interest rates were 4.0% per annum below National Bank of Fujairah Base Rate, minimum 3.5% per annum, and Emirates Inter Bank Offered Rate (EIBOR) plus 3.5% per annum. At July 31 2016, the Company's interest rates range from 3.5% to 6.0%. At July 31, 2016, the Company had available borrowing capacity of $29.1 million under these credit arrangements. In addition, $7.7 million of availability was used to support letters of credit to guarantee amounts committed for inventory purchases and project completion guarantees. At July 31, 2016, borrowings under these credit arrangements totaled $0.8 million; an additional $20.6 million remained unused. The foreign revolving lines balances as of July 31, 2016 and January 31, 2016 were included as current maturities of long-term debt in the consolidated balance sheets. On February 1, 2016, the Company executed a promissory note in favor of United Pipeline Systems Limited, an affiliate of Aegion, Inc. for $2.0 million. The promissory note was paid on July 28, 2016. In addition, the Company on July 28, 2016 paid off the balance of $2.2 million in previously affiliated debt to Aegion in its Canadian subsidiary which was acquired in the purchase of BPPC. On July 28, 2016, the Company borrowed $8.0 million CAD (approximately $6.1 million USD at the prevailing exchange rate on the transaction date) from a bank in Canada under a mortgage note secured by the manufacturing facility located in Alberta, Canada that matures on December 23, 2042. The interest rate is variable, currently at 4.7% with monthly payments of $31 thousand CAD (approximately $24 thousand USD) for interest; principal payments begin January 2017.

Debt. Debt totaled $12.3 million at July 31, 2016, a net decrease of $3.2 million since January 31, 2016.

Revolving lines domestic. 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 24, 2019, the Company can borrow up to $15.0 million, subject to borrowing base availability from secured domestic assets, such as accounts receivable and inventory, and other requirements, under a revolving line of credit. The Credit Agreement covenants restrict debt, liens, and investments, and require attainment of specific levels of profitability and cash flows. At July 31, 2016, the Company was in compliance with loan covenants. The domestic revolving line balance as of July 31, 2016 and January 31, 2016 was included as a current liability in the consolidated balance sheets.

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. As of July 31, 2016, the Company had borrowed $3.8 million at 3.5% and 2.22% and had $7.0 million available to it under the revolving line of credit. In addition, $0.3 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 had 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 of credit are secured by certain equipment, certain assets, such as accounts receivable and inventory, and a guarantee by the Company. The Company's credit arrangement covenants require a minimum tangible net worth to be maintained. At July 31, 2016, the Company was in compliance with the covenants under the credit arrangements. At July 31, 2016, interest rates were 4.0% per annum below National Bank of Fujairah Base Rate, minimum 3.5% per annum, and Emirates Inter Bank Offered Rate (EIBOR) plus 3.5% per annum. At July 31 2016, the Company's interest rates range from 3.5% to 6.0%. At July 31, 2016, the Company had available borrowing capacity of $29.1 million under these credit arrangements. In addition, $7.7 million of availability was used to support letters of credit to guarantee amounts committed for inventory purchases and project completion guarantees. At July 31, 2016, borrowings under these credit arrangements totaled $0.8 million; an additional $20.6 million remained unused. The foreign revolving lines balances as of July 31, 2016 and January 31, 2016 were included as current maturities of long-term debt in the consolidated balance sheets.

On February 1, 2016, the Company executed a promissory note in favor of United Pipeline Systems Limited, an affiliate of Aegion, Inc. for $2.0 million. The promissory note was paid on July 28, 2016. In addition, the Company on July 28, 2016 paid off the balance of $2.2 million in previously affiliated debt to Aegion in its Canadian subsidiary which was acquired in the purchase of BPPC.

On July 28, 2016, the Company borrowed $8.0 million CAD (approximately $6.1 million USD at the prevailing exchange rate on the transaction date) from a bank in Canada under a mortgage note secured by the manufacturing facility located in Alberta, Canada that matures on December 23, 2042. The interest rate is variable, currently at 4.7% with monthly payments of $31 thousand CAD (approximately $24 thousand USD) for interest; principal payments begin January 2017.