Note 15 - Stock-Based Compensation (Detail) - Stock Option Activity (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Number of Shares Outstanding	249,000	337,000
Weighted Average Exercise Price Outstanding (in Dollars per share)	$ 3.28	$ 3.26
Number of Shares Exercised		(10,000)
Weighted Average Exercise Price Exercised (in Dollars per share)		$ 3.04
Number of Shares Canceled	(30,000)	(78,000)
Weighted Average Exercise Price Canceled (in Dollars per share)	$ 4.11	$ 3.20
Number of Shares Outstanding	219,000	249,000
Weighted Average Exercise Price Outstanding (in Dollars per share)	$ 3.17	$ 3.28