Debt 5 year repayment (Details) - USD ($) $ in Thousands	Jan. 31, 2018	Jan. 31, 2017
Debt Instrument [Line Items]
Revolving lines current	$ 7,273	$ 3,813
Mortgage notes	7,723	7,463
Term loans	0	80
Capitalized lease obligations	846	283
Total debt	15,965
Capital Leases, Future Minimum Payments Due, Next Twelve Months	274
Capital Leases Future Minimum Payments Due In Two Years without interest	224
Capital Leases, Future Minimum Payments Due in Three Years	240
Capital Leases, Future Minimum Payments Due in Four Years	86
Repayments of Long-term Capital Lease Obligations	22
Capital Leases, Future Minimum Payments Due Thereafter	0
Current maturities of long-term debt	8,037	4,517
Total debt principal in Year Two	596
Total debt principal in Year Three	617
Total debt principal in Year Four	469
Total debt principal after Year Five	411
Total debt principal Thereafter	5,835
North America [Member]
Debt Instrument [Line Items]
Revolving lines current	7,273	3,813
Revolving line current	7,273
Revolving line current	0
Mortgages [Member]
Debt Instrument [Line Items]
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months	367
Long-term Debt, Maturities, Repayments of Principal in Year Two	372
Long-term Debt, Maturities, Repayments of Principal in Year Three	377
Long-term Debt, Maturities, Repayments of Principal in Year Four	383
Long-term Debt, Maturities, Repayments of Principal in Year Five	389
Total debt principal Thereafter	5,835
Foreign Line of Credit [Member]
Debt Instrument [Line Items]
Revolving lines current	123	$ 301
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months	123
Long-term Debt, Maturities, Repayments of Principal in Year Two	0
Long-term Debt, Maturities, Repayments of Principal in Year Three	0
Long-term Debt, Maturities, Repayments of Principal in Year Four	0
Long-term Debt, Maturities, Repayments of Principal in Year Five	0
Total debt principal Thereafter	$ 0