Earnings per Share (Tables)

6 Months Ended

Jul. 31, 2012

Earnings per Share [Abstract]

Basic and diluted weighted average common shares used in the earnings per share calculation

	Three Months Ended July 31,				For the Six Months Ended July 31,
	2012		2011		2012		2011
	(in thousands)				(in thousands)
Basic weighted average common shares outstanding		12,665		10,970		12,646		10,447
Stock options		583		629		629		578
Unvested restricted stock		14		16		19		18
Total weighted average common share equivalents		597		645		648		596
Diluted weighted average common shares outstanding		13,262		11,615		13,294		11,043