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
	Mar. 31, 2014	Mar. 31, 2013
Computation of Basic and Diluted Earnings Per Share [Abstract]
Numerator for basic and diluted earnings per share - net income (in Dollars)	$ 2,296	$ 2,408
Denominator for basic earnings per share - weighted average shares outstanding	3,275,961	3,232,109
Effect of dilutive securities - employee stock options	11,108	9,919
Denominator for diluted earnings per share - adjusted weighted average shares outstanding	3,287,069	3,242,028
Earnings per share - basic (in Dollars per share)	$ 0.70	$ 0.75
Earnings per share - diluted (in Dollars per share)	$ 0.70	$ 0.74