Note 20 - Consolidated Quarterly Financial Data (Unaudited) (Details) - Unaudited Quarterly Results of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended																12 Months Ended
	Dec. 31, 2013		Sep. 30, 2013		Jun. 30, 2013		Mar. 31, 2013		Dec. 31, 2012		Sep. 30, 2012		Jun. 30, 2012		Mar. 31, 2012		Dec. 31, 2013	Dec. 31, 2012
Unaudited Quarterly Results of Operations [Abstract]
Interest income	$ 7,606		$ 7,678		$ 7,624		$ 7,676		$ 8,015		$ 8,276		$ 8,424		$ 8,633		$ 30,584	$ 33,348
Interest expense	1,176		1,226		1,288		1,343		1,420		1,553		1,648		1,827		5,033	6,448
Net interest income	6,430		6,452		6,336		6,333		6,595		6,723		6,776		6,806		25,551	26,900
Provision for loan losses	150		150		100				300		300				300		400	900
Non-interest income	1,273		1,553		1,239		1,748		1,392		1,125		1,326		1,566		5,813	5,409
Non-interest expense	5,072		5,123		5,091		4,940		5,012		4,934		4,828		4,851		20,226	19,625
Income before income taxes	2,481		2,732		2,384		3,141		2,675		2,614		3,274		3,221		10,738	11,784
Provision for income taxes	519		604		490		733		550		540		769		750		2,346	2,609
Net Income	$ 1,962		$ 2,128		$ 1,894		$ 2,408		$ 2,125		$ 2,074		$ 2,505		$ 2,471		$ 8,392	$ 9,175
Earnings Per Share - basic * (in Dollars per share)	$ 0.60	[1]	$ 0.65	[1]	$ 0.58	[1]	$ 0.75	[1]	$ 0.66	[1]	$ 0.65	[1]	$ 0.79	[1]	$ 0.78	[1]	$ 2.58	$ 2.87
Earnings Per Share - diluted * (in Dollars per share)	$ 0.60	[1]	$ 0.65	[1]	$ 0.58	[1]	$ 0.74	[1]	$ 0.66	[1]	$ 0.64	[1]	$ 0.78	[1]	$ 0.77	[1]	$ 2.57	$ 2.86

[1] Due to rounding, quarterly earnings per share may not sum to annual earnings per share