Note 14 - Share Repurchase Program (Detail) - Share Repurchase Programs (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended		24 Months Ended	1 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012	Sep. 30, 2011 August 25 2011 Through September 30 2011 [Member]	Dec. 31, 2011 October 1 2011 Through December 31 2011 [Member]	Dec. 31, 2012 January 1 2012 Through March 31 2012 [Member]	Jun. 30, 2012 April 1 2012 Through June 30 2012 [Member]	Sep. 30, 2012 July 1 2012 through September 30 2012 [Member]
Phase One Program
Total Number Of Shares Purchased (in Shares)		2,306,590	2,306,590	571,554	130,160	334,636	1,124,797	145,443
Average Price Paid Per Share (in Dollars per share)			$ 5.20	$ 5.89	$ 5.71	$ 5.64	$ 4.70	$ 4.88
Total Cost	$ (7,889)	$ (4,111)	$ 12,000	$ 3,367	$ 744	$ 1,889	$ 5,290	$ 710
Maximum Dollar Value of Shares That May Yet Be Purchased Under the Program				$ 2,633	$ 1,889		$ 710