Comprehensive Income

6 Months Ended

Jul. 31, 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					Six Months Ended
	July 31, 2011		July 31, 2010			July 31, 2011		July 31, 2010
Net income	$	12,461	$	8,353		$	28,177	$	21,298
Other comprehensive income:
Foreign currency translation	21		(49		)	160		48
Amortization of postretirement benefit plan actuarial losses, net of income tax of $7, $15, $22, and $29	12		27			41		54
Total other comprehensive income	33		(22		)	201		102
Total comprehensive income	$	12,494	$	8,331		$	28,378	$	21,400