Note 1 - Summary of Significant Accounting Policies (Details) - Effect of Accounting Change on Interim Financial Statements: Interim Condensed Consolidated Statement of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net Income	$ 64,613	$ 59,300	$ 64,990
Deferred income taxes	2,404	(1,416)	(2,577)
Obligation to provide future services	1,898	(2,461)	(1,800)
Deferred revenue	(110)	(91)	(206)
Net cash provided by operating activities	102,348	64,373	82,358
Entrance fee refunds	40	(1,310)	(1,704)
Net cash used in financing activities	(31,044)	(27,455)	(18,082)
Previously Reported [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net Income		57,957	64,072
Deferred income taxes		558	1,990
Deferred revenue		(31)	(35)
Net cash provided by operating activities		64,693	82,824
Entrance fee refunds		(1,630)	(2,170)
Net cash used in financing activities		(27,775)	(18,548)
Adjustments for New Accounting Pronouncement [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net Income		1,343	918
Deferred income taxes		858	587
Obligation to provide future services		(2,461)	(1,800)
Deferred revenue		(60)	(171)
Net cash provided by operating activities		(320)	(466)
Entrance fee refunds		320	466
Net cash used in financing activities		320	466
As Adjusted [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net Income		59,300	64,990
Deferred income taxes		1,416	2,577
Obligation to provide future services		(2,461)	(1,800)
Deferred revenue		(91)	(206)
Net cash provided by operating activities		64,373	82,358
Entrance fee refunds		(1,310)	(1,704)
Net cash used in financing activities		$ (27,455)	$ (18,082)