Note 3 - Other Revenues (Detail) - Other Revenues (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Other Revenues	$ 14,028	$ 13,939	$ 28,001	$ 29,334
Management and Accounting Services Fees [Member]
Other Revenues	5,018	4,731	9,979	10,623
Rental Income [Member]
Other Revenues	4,761	4,753	9,523	9,612
Insurance Services [Member]
Other Revenues	3,906	4,011	7,831	8,096
Other Income [Member]
Other Revenues	$ 343	$ 444	$ 668	$ 1,003