Note 8 - Income Taxes (Detail) - Federal and state income tax expense (benefit) summary (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Current:
Federal			$ (504)
State and local	974	359	554
State and local - reserve for uncertain tax positions	(1,015)	(905)	(513)
Current income tax benefit	(41)	(546)	(463)
Deferred:
Federal	16,854	4,860	13,869
State and local	2,375	225	41
Deferred income tax expense	19,229	5,085	13,910
Total income tax expense	$ 19,188	$ 4,539	$ 13,447