Note 7 - Federal and State Income Tax Expense (Benefit) Summary (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Federal
State and local	$ 1,259,000	$ 996,000	$ 118,000
State and local - reserve for uncertain tax positions	(581,000)	(198,000)	(136,000)
Current income tax expense (benefit)	678,000	798,000	(18,000)
Federal	24,067,000	28,231,000	12,218,000
State and local	1,703,000	2,707,000	947,000
Deferred income tax expense	25,770,000	30,938,000	13,165,000
Income tax expense as recorded	$ 26,448,000	$ 31,736,000	$ 13,147,000