8. Fair Value Measurements (Details) - Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis - USD ($) $ in Thousands	Jul. 31, 2016	[1]	Jan. 31, 2016
Assets measured at fair value
Company-owned life insurance	$ 21,907		$ 21,888
Mortgage note receivable	1,561		1,575
Pension plan assets	11,585		0
Fair Value, Inputs, Level 1 [Member]
Assets measured at fair value
Company-owned life insurance	0		0
Mortgage note receivable	0		0
Pension plan assets	11,585		0
Fair Value, Inputs, Level 2 [Member]
Assets measured at fair value
Company-owned life insurance	21,907		21,888
Mortgage note receivable	0		0
Pension plan assets	0		0
Fair Value, Inputs, Level 3 [Member]
Assets measured at fair value
Company-owned life insurance	0		0
Mortgage note receivable	1,561		1,575
Pension plan assets	$ 0		$ 0

[1] February 2, 2016 for Pension plan assets