Summary of Significant Accounting Policies Calculation of Basic and Diluted Net Income Per Share from Continuing Operations (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Aug. 31, 2016	Aug. 31, 2015	Aug. 31, 2016	Aug. 31, 2015
Basic net income per common share:
Net income available to common shareholders	$ 335	$ 4,394	$ 3,021	$ 5,919
Impact of conversion of preferred stock into common stock	$ 0		$ 0
Basic shares:
Basic weighted average common shares outstanding (in shares)	12,047	10,950	11,922	10,884
Impact of equity awards (in shares)	252	309	121	402
Impact of conversion of preferred stock into common stock (in shares)	0	554	0	561
Diluted shares:
Diluted weighted average common shares outstanding (in shares)	12,299	11,813	12,043	11,847
Basic net income per common share:
Net income available to common shareholders from continuing operations, per basic shares (in dollars per share)	$ 0.03	$ 0.40	$ 0.25	$ 0.54
Diluted net income per common share:
Net income available to common shareholders from continuing operations, per dilutive shares (in dollars per share)	$ 0.03	$ 0.37	$ 0.25	$ 0.50