Note 13 - Stock Plans (Detail) - Option Activity (USD $)	12 Months Ended
	Dec. 31, 2012		Dec. 31, 2011
Outstanding - beginning of year	127,884
Outstanding - beginning of year (in Dollars per share)	$ 14.80
Granted (2)	22,790	[1]
Granted (2) (in Dollars per share)	$ 5.69	[1]
Exercised	0
Exercised (in Dollars per share)	$ 0
Exercised (in Dollars)	$ 0		$ 7,424
Cancelled/forfeited	(22,895)
Cancelled/forfeited (in Dollars per share)	$ 12.68
Expired	(15,628)
Expired (in Dollars per share)	$ 20.85
Outstanding at December 31, 2012	112,151		127,884
Outstanding at December 31, 2012 (in Dollars per share)	$ 12.54		$ 14.80
Outstanding at December 31, 2012	2 years 6 months
Outstanding at December 31, 2012 (in Dollars)	5,038,000	[2]
Exercisable at December 31, 2012	68,365
Exercisable at December 31, 2012 (in Dollars per share)	$ 14.77
Exercisable at December 31, 2012	1 year 146 days
Exercisable at December 31, 2012 (in Dollars)	$ 0

[1] 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, 2012 2011 (the last trading day of the fiscal year), was $13.23. The intrinsic value for options exercised in 2011 was $7,424. During the year ended December 31, 2012, no options were exercised.

[2] The weighted-average grant date fair value of options granted during 2012 and 2011 was $2.43 and $2.99, respectively.