Note 3 - Stock-Based Compensation (Detail) - Option Activity (USD $)	9 Months Ended
	Sep. 30, 2012
Outstanding - beginning of year	127,884
Outstanding - beginning of year (in Dollars per share)	$ 14.80
Granted	14,018
Granted (in Dollars per share)	$ 7.45
Exercised	0
Exercised (in Dollars per share)	$ 0
Exercised (in Dollars)	$ 0	[1]
Cancelled/forfeited	(18,448)
Cancelled/forfeited (in Dollars per share)	$ 12.74
Expired	(14,789)
Expired (in Dollars per share)	$ 21.28
Outstanding at September 30, 2012	108,665
Outstanding at September 30, 2012 (in Dollars per share)	$ 13.32
Outstanding at September 30, 2012	2 years 292 days
Outstanding at September 30, 2012 (in Dollars)	0	[1]
Exercisable at September 30, 2012	69,204
Exercisable at September 30, 2012 (in Dollars per share)	$ 14.75
Exercisable at September 30, 2012	1 year 328 days
Exercisable at September 30, 2012 (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 September 28, 2012 (the last trading day of the quarter), was $3.64.