Note 3 - Other Revenues (Detail) - Other Revenues (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Other Revenues	$ 15,948	$ 13,937
Management and Accounting Services Fees [Member]
Other Revenues	4,832	4,962
Rental Income [Member]
Other Revenues	4,737	4,761
Insurance Services [Member]
Other Revenues	6,127	3,925
Other Income [Member]
Other Revenues	$ 252	$ 289