Note 16 - Share-Based Compensation (Detail) - Restricted Stock Award Transactions (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010
Non-vested awards at beginning of year (in Shares)	978	653
Non-vested awards at beginning of year	$ 11.99	$ 11.94
Non-vested awards at end of year (in Shares)	1,011	978
Non-vested awards at end of year	$ 11.92	$ 11.99
Granted (in Shares)	490	448
Granted	$ 12.08	$ 13.26
Vested (in Shares)	(358)	(108)
Vested	$ 11.77	$ 16.90
Forfeited (in Shares)	(99)	(15)
Forfeited	$ 13.95	$ 11.99
Granted [Member]
Granted (in Shares)	26
Granted	$ 12.08
Balance End of Period [Member]
Non-vested awards at end of year (in Shares)	26
Non-vested awards at end of year	$ 12.08