5. Accounts Receivable (Details) - Accounts Receivable - USD ($) $ in Thousands	Jul. 31, 2016	Jan. 31, 2016
Accounts Receivable [Abstract]
Trade accounts receivable	$ 69,585	$ 25,520
Receivable from factor	1,698	3,688
Allowance for doubtful accounts	(3,848)	(1,032)
Accounts receivable	$ 67,435	$ 28,176