Stock-Based Compensation, (Non-vested Stock Options and SARs) (Details) - Non Vested Stock Options And SARS [Member]	9 Months Ended
	Oct. 31, 2015 $ / shares shares
Number of Shares [Roll Forward]
Non-vested, beginning of period (in shares) | shares	69,763
Vested (in shares) | shares	(69,763)
Weighted Average Grant Date Fair Value [Abstract]
Non-vested, beginning of period (in dollars per share) | $ / shares	$ 8.69
Vested (in dollars per share) | $ / shares	$ 8.69