Note 4 - Earnings Per Share (Details) - Basic and Diluted EPS - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		3 Months Ended		6 Months Ended		12 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Numerators:
Net income (in Dollars)		$ 2,390	$ 2,206	$ 4,191	$ 2,771	$ 5,727
Less:
Preferred cash dividends (in Dollars)		50	50	100	100
Net income available to common shareholders (in Dollars)		$ 2,340	$ 2,156	$ 4,091	$ 2,671
Denominators:
Weighted average number of common shares outstanding - basic		13,338	13,378	13,320	13,658
Effect of potentially dilutive common shares (1)	[1]	32	48	33	47
Weighted average number of common shares outstanding - diluted		13,370	13,426	13,353	13,705
Earnings per common share:
Basic (in Dollars per share)		$ 0.18	$ 0.16	$ 0.31	$ 0.20
Diluted (in Dollars per share)		$ 0.18	$ 0.16	$ 0.31	$ 0.19
Employee Stock Option [Member]
Earnings per common share:
Anti-dilutive options not included in earnings per share calculation		129	82	151	82

[1] Represents the effects of the assumed exercise of stock options