Note 3 - Stock-Based Compensation (Details) - Option Activity (USD $)	9 Months Ended
	Sep. 30, 2013
Option Activity [Abstract]
Outstanding - beginning of year	112,151
Outstanding - beginning of year (in Dollars per share)	$ 12.54
Granted	42,910
Granted (in Dollars per share)	$ 4.83
Exercised	0
Exercised (in Dollars per share)	$ 0
Exercised (in Dollars)	$ 0	[1]
Cancelled/forfeited	(9,716)
Cancelled/forfeited (in Dollars per share)	$ 5.88
Expired	(30,959)
Expired (in Dollars per share)	$ 15.55
Outstanding at September 30, 2013	114,386
Outstanding at September 30, 2013 (in Dollars per share)	$ 9.40
Outstanding at September 30, 2013	5 years
Outstanding at September 30, 2013 (in Dollars)	214,069	[1]
Exercisable at September 30, 2013	54,584
Exercisable at September 30, 2013 (in Dollars per share)	$ 13.17
Exercisable at September 30, 2013	1 year 292 days
Exercisable at September 30, 2013 (in Dollars)	$ 12,277	[1]

[1] The intrinsic value of outstanding and exercisable stock options is determined based on the amount by which the market value of the underlying stock exceeds the exercise price of the option. The per share market value of our Common Stock, as determined by the closing price on September 30, 2013 (the last trading day of the quarter), was $8.96.