Retirement Plans (Tables)

6 Months Ended

Jul. 31, 2015

Compensation and Retirement Disclosure [Abstract]

Schedule of Defined Benefit Plans Disclosures

The net periodic pension cost (income) for the Pension Plan, the VIP Plan, and the Non-Employee Directors Retirement Plan for the three months and six months ended July 31, 2015 and 2014 were as follows (in thousands):

	Three Months Ended
	Pension Plan						VIP Plan				Non-Employee Directors Retirement Plan
	7/31/2015			7/31/2014			7/31/2015		7/31/2014		7/31/2015		7/31/2014
Service cost	$	—		$	—		$	—	$	—	$	—	$	—
Interest cost	324			315			105		88		3		4
Expected return on plan assets	(324		)	(275		)	—		—		—		—
Amortization of transition amount	—			—			—		—		—		—
Recognized (gain) loss due to curtailments	—			—			—		—		—		—
Amortization of prior service cost	—			—			—		—		—		—
Recognized net actuarial (gain) loss	375			284			120		45		—		(8		)
Benefit cost	$	375		$	324		$	225	$	133	$	3	$	(4	)

	Six Months Ended
	Pension Plan						VIP Plan				Non-Employee Directors Retirement Plan
	7/31/2015			7/31/2014			7/31/2015		7/31/2014		7/31/2015		7/31/2014
Service cost	$	—		$	—		$	—	$	—	$	—	$	—
Interest cost	648			630			210		176		6		8
Expected return on plan assets	(648		)	(550		)	—		—		—		—
Amortization of transition amount	—			—			—		—		—		—
Recognized (gain) loss due to curtailments	—			—			—		—		—		—
Amortization of prior service cost	—			—			—		—		—		—
Recognized net actuarial (gain) loss	750			568			240		90		—		(16		)
Benefit cost	$	750		$	648		$	450	$	266	$	6	$	(8	)