Comprehensive Income

3 Months Ended

Apr. 30, 2011

Comprehensive Income [Abstract]

Comprehensive Income [Text Block]

Comprehensive Income

Comprehensive income consists of two components, net income and other comprehensive income. Other comprehensive income refers to revenue, expenses, gains, and losses that under U.S. generally accepted accounting principles are recorded as an element of shareholders’ equity but are excluded from net income.

The components of total comprehensive income follow:

	Three Months Ended
	April 30, 2011		April 30, 2010
Net income	$	15,716	$	12,945
Other comprehensive income:
Foreign currency translation	139		97
Amortization of postretirement benefit plan actuarial losses, net of income tax of $15	29		27
Total other comprehensive income	168		124
Total comprehensive income	$	15,884	$	13,069