Note 9 - Income Taxes (Details) - Income Tax Expense (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Expense [Abstract]
Currently payable	$ 4,908	$ 3,953	$ 1,580
Deferred	(473)	(1,043)	(2,227)
Total applicable to operations	4,435	2,910	(647)
Deferred tax charged (credited) to components of shareholders’ equity:
Unfunded status of postretirement benefits	1,589	(92)	(500)
Net unrealized securities (losses) gains	(7,019)	214	3,593
Total income taxes	$ (995)	$ 3,032	$ 2,446