Debt Narrative (Details) (USD $)	12 Months Ended
	Jan. 31, 2015 Rate	Jan. 31, 2014
Line of Credit Facility [Line Items]
Foreign line of credit	$ 2,774,000	$ 5,059,000
Restricted Cash and Cash Equivalents	428,000	439,000
Revolving line domestic	11,353,000	0
United States
Line of Credit Facility [Line Items]
Line of Credit Facility, Expiration Date	Sep. 24, 2019
Line of Credit Facility, Covenant Terms	require attainment of specific levels of profitability and cash flows when reaching certain levels of availability
Foreign Line of Credit [Member]
Line of Credit Facility [Line Items]
Foreign line of credit	2,774,000
Line of Credit Facility, Covenant Terms	Some credit arrangement covenants requires a minimum tangible net worth to be maintained
Line of Credit Facility, Covenant Compliance	in compliance with the covenant under the credit arrangement.
Line of Credit Facility, Interest Rate Description	Interest rates are 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. The Company's interest rates range from 3.5% to 6.0%
Revolving line	36,300,000
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months	2,774,000
Line of Credit Facility, Remaining Borrowing Capacity	24,000,000
Letters of Credit Outstanding, Amount	9,500,000
Line of Credit [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Maturity Date	Sep. 01, 2015
Face value of debt in local currency	50 million Saudi Riyal
Debt Instrument, Face Amount	13,300,000
Debt Instrument, Interest Rate at Period End	6.00%
Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Maturity Date	Jun. 01, 2015
Face value of debt in local currency	40 million Dirhams
Debt Instrument, Face Amount	10,900,000
Debt Instrument, Interest Rate at Period End	6.00%
Middle East [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Maturity Date	Nov. 30, 2015
Face value of debt in local currency	35.3 million Dirhams
Debt Instrument, Face Amount	9,600,000
Debt Instrument, Interest Rate at Period End	6.00%
United States
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	25,000,000
Line of Credit Facility, Covenant Compliance	in compliance with all covenants under the Credit Agreement
Description of Material Affects of Noncompliance	Subsequent to January 31, 2015, the Company was not in compliance with the specific level of Borrowing Base availability for the period ended March 31, 2015. While not a covenant violation, the financial institution has the right in the Credit Agreement to have all domestic receipts deposited in a bank account from which all funds may only be used to serve the revolving line of credit under the Credit Agreement.
Line of Credit Facility, Interest Rate Description	(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.
Revolving line domestic	11,353,000
Line of Credit Facility, Interest Rate at Period End	3.25%
Revolving line		6,951,000
Line of Credit Facility, Remaining Borrowing Capacity	8,200,000
Letters of Credit Outstanding, Amount	$ 100,000