Computation of Earnings Per Share (Tables)

9 Months Ended

Feb. 28, 2015

Earnings Per Share [Abstract]

Reconciliation of Denominator Used in Computation of Basic and Diluted Earnings per Share

The following is a reconciliation of the denominator used in the computation of basic and diluted earnings per share for the three and nine months ended February 28, 2015 and 2014:

	Three Months Ended   February 28,				Nine Months Ended   February 28,
	2015		2014		2015		2014
Denominator:
Denominator for basic earnings per share - weighted average common shares outstanding (including shares issuable for vested restricted stock units)	24,377		24,334		24,355		24,320
Effect of unvested restricted stock units	—		33		—		29
Diluted shares used in per share calculation	24,377		24,367		24,355		24,349
Net income	$	2,425	$	4,537	$	11,991	$	15,815
Earnings per share:
Basic	$	0.10	$	0.19	$	0.49	$	0.65
Diluted	$	0.10	$	0.19	$	0.49	$	0.65