Note 14 - Shareholders' Equity (Detail) - Activity in the Company’s Share-Based Plans (USD $)	3 Months Ended
	Mar. 31, 2013
At March 31, 2013 (in Dollars per share)	$ 7.84
Options Granted	0
Options Granted	0
Stock Options [Member] | Beginning Balance [Member]
At December 31, 2012	3,119,692
At December 31, 2012 (in Dollars per share)	$ 7.84
At December 31, 2012	5 years 98 days
At December 31, 2012 (in Dollars)	$ 0
At March 31, 2013	5 years 98 days
Options Granted	0
Options Granted	0
Options Granted (in Dollars per share)	$ 0
Options Granted (in Dollars per share)	$ 0
Exercised	312
Exercised	(312)
Exercised (in Dollars per share)	$ 3.22
Exercised (in Dollars)	0
Expired and forfeited	0
Expired and forfeited (in Dollars per share)	$ 0
Expired and forfeited (in Dollars per share)	$ 0
Stock Options [Member] | Ending Balance [Member]
At December 31, 2012	5 years 7 days
At March 31, 2013	3,119,380
At March 31, 2013 (in Dollars per share)	$ 7.84
At March 31, 2013	5 years 7 days
At March 31, 2013 (in Dollars)	27,555,000
Stock Options [Member]
Exercisable at March 31, 2013	2,596,635
Exercisable at March 31, 2013 (in Dollars per share)	$ 8.15
Exercisable at March 31, 2013	4 years 186 days
Exercisable at March 31, 2013 (in Dollars)	0
Exercised	312
Exercised	(312)
Exercised (in Dollars per share)	$ 3.22
Restricted Stock [Member] | Restricted Stock [Member] | Beginning Balance [Member]
Restricted Shares Granted	72,000
Restricted Shares Granted (in Dollars per share)	$ 5.60
Restricted Shares Granted (in Dollars)	406,080
Restricted Stock [Member] | Beginning Balance [Member]
At December 31, 2012	646,260
At December 31, 2012 (in Dollars per share)	$ 4.01
At December 31, 2012 (in Dollars)	3,379,940
Exercised	0
Exercised (in Dollars per share)	$ 0
Exercised (in Dollars)	0
Expired and forfeited	0
Expired and forfeited (in Dollars per share)	$ 0
Expired and forfeited (in Dollars)	0
Restricted Stock [Member] | Ending Balance [Member]
At March 31, 2013	718,260
At March 31, 2013 (in Dollars per share)	$ 4.17
At March 31, 2013 (in Dollars)	$ 4,050,986
Restricted Stock [Member]
Restricted Shares Granted	72,000
Beginning Balance [Member]
At December 31, 2012	390,236
Options Granted	0
Options Granted	0
Exercised	0
Exercised	0
Expired and forfeited	0
Ending Balance [Member]
At March 31, 2013	390,236