INCOME TAXES (Tables)

12 Months Ended

Jan. 31, 2016

INCOME TAXES

Components of Company's Income Tax Expense

	2017			2016		2015
Current:
Federal	$	29,681		$	16,458	$	15,249
State	6,188			5,423		4,767
	35,869			21,881		20,016
Deferred:
Federal	1,277			2,950		788
State	(40		)	471		108
	1,237			3,421		896
Income tax expense	$	37,106		$	25,302	$	20,912

Actual Income Tax Expense Amounts

	2017			2016			2015
Computed “expected” income tax	$	40,086		$	26,427		$	22,528
Increase (decrease) resulting from:
State income taxes, net of federal benefit	4,001			4,030			3,284
Stock option exercises	(4,969		)	—			—
Domestic production activities deduction	(2,906		)	(1,635		)	(1,504		)
Exclusion of noncontrolling interests	(2,484		)	(4,823		)	(4,582		)
Other permanent differences	1,933			1,557			902
Adjustments and other differences	1,445			(254		)	284
Income tax expense	$	37,106		$	25,302		$	20,912

Schedule of Tax Effects of Temporary Differences that Gave Rise to Deferred Tax Assets and Liabilities

	2017			2016
Assets:
Net operating loss (“NOL”) carryforwards	$	3,487		$	3,345
Stock options	1,594			2,354
Purchased intangibles	1,592			2,233
Accrued expenses and other	2,052			2,144
	8,725			10,076
Liabilities:
Purchased intangibles	$	(4,428	)	$	(4,375	)
Construction contracts	(2,862		)	(3,681		)
Property and equipment and other	(2,389		)	(2,244		)
	(9,679		)	(10,300		)
Net deferred tax liabilities	$	(954	)	$	(224	)