8. Fair Value Measurements (Details) - USD ($) $ in Thousands	Jul. 31, 2016		Feb. 02, 2016	Jan. 31, 2016
8. Fair Value Measurements (Details) [Line Items]
Long-term Debt, Fair Value	$ 17,100
Line of Credit Facility, Maximum Borrowing Capacity	90,000
Notes Receivable, Fair Value Disclosure	1,561	[1]		$ 1,575
Employee-related Liabilities, Current	$ 5,668			$ 4,834
Pension Plan [Member]
8. Fair Value Measurements (Details) [Line Items]
Defined Benefit Pension Plan, Liabilities			$ 6,200
Defined Benefit Plan, Expected Future Benefit Payments, Next Twelve Months			1,200
Employee-related Liabilities, Current			$ 4,900

[1] February 2, 2016 for Pension plan assets