Note 4 - Acquisitions (Tables)

12 Months Ended

Dec. 31, 2012

Business Acquisition, Pro Forma Information [Table Text Block]

	Year Ended December 31,
	2011		2010
Total revenues	$	764,870	$	667,231
Income from operations	$	63,832	$	51,001
Basic income per share	$	3.30	$	2.27
Diluted income per share	$	3.25	$	2.24

Ideal Image [Member]

Schedule of Purchase Price Allocation [Table Text Block]

Accounts receivable	$	5,875
Other current assets		3,061
Property and equipment		6,666
Goodwill and intangible assets		241,360
Other assets		327
Accounts payable		(2,419	)
Deferred tax liability		(18,075	)
Deferred revenue		(63,223	)
Accrued expenses		(5,696	)
Common stock and additional paid-in capital		(5,660	)
Cash used in acquisition, net of cash acquired	$	162,216

Schedule of Acquired Finite-Lived Intangible Assets by Major Class [Table Text Block]

	At December 31, 2011
	Life	Fair Value
Trade names	Indefinite	$	44,300
Leases	Lease term		329
Employment agreement	Two years		135
Franchise agreement	Franchise term		1,520
		$	46,284

Cortiva and Onboard [Member]

Schedule of Purchase Price Allocation [Table Text Block]

Accounts receivable	$	8,465
Inventories		54
Other current assets		3,047
Property and equipment		1,256
Other assets		272
Goodwill and intangible assets		35,709
Accounts payable		(389	)
Gift certificate liability		(285	)
Deferred tuition revenue		(10,257	)
Accrued expenses		(5,812	)
Cash used in acquisition, net of cash acquired	$	32,060

Schedule of Acquired Finite-Lived Intangible Assets by Major Class [Table Text Block]

	At December 31, 2011
	Life	Fair Value
Trade names	Indefinite	$	4,606
Title IV rights	Indefinite		11,640
Non-compete	Five years		840
Leases	Lease term		1,706
		$	18,792