Note 5 - Earnings Per Share (Details) - Computation of Basic and Diluted Earnings Per Share (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Computation of Basic and Diluted Earnings Per Share [Abstract]
Numerator for basic and diluted earnings per share - net income (in Dollars)	$ 2,172	$ 1,894	$ 4,468	$ 4,302
Denominator for basic earnings per share - weighted average shares outstanding	3,285,052	3,243,867	3,280,532	3,238,020
Effect of dilutive securities - employee stock options	12,390	12,088	11,560	11,048
Denominator for diluted earnings per share - adjusted weighted average shares outstanding	3,297,442	3,255,955	3,292,092	3,249,068
Earnings per share - basic (in Dollars per share)	$ 0.66	$ 0.58	$ 1.36	$ 1.33
Earnings per share - diluted (in Dollars per share)	$ 0.66	$ 0.58	$ 1.36	$ 1.32