Restricted cash Restricted cash (Tables)

9 Months Ended

Oct. 31, 2017

Restricted Cash and Cash Equivalents Items [Line Items]

Restrictions on Cash and Cash Equivalents [Table Text Block]

	Nine Months Ended October 31,
	2017		2016
Cash and cash equivalents		$8,373		$9,008
Restricted cash	898		946
Cash, cash equivalents and restricted cash shown in the statement of cashflows		$9,271		$9,954