Debt (Details) $ in Millions	3 Months Ended
	Apr. 30, 2016 USD ($) Rate
Debt [Line Items]
Debt	$ 15.3
Debt, net change	$ (0.2)
UNITED STATES
Debt [Line Items]
Maturity date	Sep. 24, 2019
Line of Credit Facility, Maximum Borrowing Capacity	$ 15.0
Line of Credit Facility, Covenant Terms	require attainment of specific levels of profitability and cash flows
Line of Credit Facility, Covenant Compliance	in compliance
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, amount outstanding	$ 7.2
Prime interest rate | Rate	3.50%
Eurodollar interest rate | Rate	2.19%
Revolving line, remaining borrowing capacity	$ 5.6
Letters of Credit Outstanding, Amount	0.3
Foreign Line of Credit [Member]
Debt [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 43.8
Line of Credit Facility, Covenant Terms	Some credit arrangement covenants require a minimum tangible net worth to be maintained
Line of Credit Facility, Covenant Compliance	in compliance with the covenants under the credit arrangements.
Line of Credit Facility, Collateral change	certain equipment, certain assets, such as accounts receivable and inventory, and a guarantee by the Company
Line of Credit Facility, Interest Rate Description	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 April 30, 2016, the Company's interest rates range from 3.5% to 6.0%
Revolving line, amount outstanding	$ 1.7
Revolving line, remaining borrowing capacity	34.7
Letters of Credit Outstanding, Amount	$ 7.4