Note 3 - Stock-Based Compensation (Details) - Option Activity (USD $)	6 Months Ended
	Jun. 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	(8,892)
Cancelled/forfeited (in Dollars per share)	$ 5.34
Expired	(20,060)
Expired (in Dollars per share)	$ 16.84
Outstanding at June 30, 2013	126,109
Outstanding at June 30, 2013 (in Dollars per share)	$ 9.74
Outstanding at June 30, 2013	4 years 292 days
Outstanding at June 30, 2013 (in Dollars)	0	[1]
Exercisable at June 30, 2013	50,215
Exercisable at June 30, 2013 (in Dollars per share)	$ 13.72
Exercisable at June 30, 2013	1 year 146 days
Exercisable at June 30, 2013 (in Dollars)	$ 0	[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 June 28, 2013 (the last trading day of the quarter), was $6.44.