Note 3 - Stock-Based Compensation (Detail) - Option Activity (USD $)	6 Months Ended
	Jun. 30, 2012
Outstanding - beginning of year	127,884
Outstanding - beginning of year (in Dollars per share)	$ 14.80
Granted	10,504
Granted (in Dollars per share)	$ 8.55
Exercised	0
Exercised (in Dollars per share)	$ 0
Exercised (in Dollars)	$ 0	[1]
Cancelled/forfeited	(17,373)
Cancelled/forfeited (in Dollars per share)	$ 12.86
Expired	(13,352)
Expired (in Dollars per share)	$ 22.12
Outstanding at June 30, 2012	107,663
Outstanding at June 30, 2012 (in Dollars per share)	$ 13.59
Outstanding at June 30, 2012	3 years
Outstanding at June 30, 2012 (in Dollars)	0	[1]
Exercisable at June 30, 2012	41,298
Exercisable at June 30, 2012 (in Dollars per share)	$ 15.96
Exercisable at June 30, 2012	1 year 219 days
Exercisable at June 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 June 29, 2012 (the last trading day of the quarter), was $4.78.