Note 12 - Stock Plans (Details) - Option Activity (USD $)	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012
Option Activity [Abstract]
Outstanding - beginning of year	112,151
Outstanding - beginning of year	$ 12.54
Granted (2)	42,910	[1]
Granted (2)	$ 4.83	[1]
Exercised	(1,398)		0
Exercised	$ 4.27
Exercised	$ 9,780	[2]
Cancelled/forfeited	(12,833)
Cancelled/forfeited	$ 6.46
Expired	(30,959)
Expired	$ 15.55
Outstanding at December 31, 2013	109,871		112,151
Outstanding at December 31, 2013	$ 9.49		$ 12.54
Outstanding at December 31, 2013	4 years 219 days
Outstanding at December 31, 2013	491,723,000	[2]
Exercisable at December 31, 2013	53,186
Exercisable at December 31, 2013	$ 13.40
Exercisable at December 31, 2013	1 year 73 days
Exercisable at December 31, 2013	$ 63,414,000	[2]

[1] The weighted-average grant date fair value of options granted during 2013 and 2012 was $1.75 and $2.43, respectively.

[2] The intrinsic value of a stock option is the amount by which the market value of the underlying stock exceeds the exercise price of the option. The per share market value of the Company's common stock, as determined by the closing price on December 31, 2013 (the last trading day of the fiscal year), was $13.38. During the year ended December 31, 2013, the intrinsic value for options exercised was $9,780. No options were exercised in 2012.