CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY (Unaudited) (USD $)	Total	Preferred Stock [Member]	Common Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Treasury Stock [Member]
Balance at Dec. 31, 2012	$ 170,760,000		$ 128,026,000	$ 86,345,000	$ 6,682,000	$ (50,293,000)
Balance, shares at Dec. 31, 2012			33,027,886
Net income	7,788,000			7,788,000
Other comprehensive income (loss)	(38,006,000)				(38,006,000)
Stock option exercises, net value	155,000			(1,051,000)		1,206,000
Stock option exercises, net shares			104,142
Stock option expenses, net	15,000		15,000
Restricted stock awards, value	260,000		218,000	9,000		33,000
Restricted stock awards, shares			3,066
Issuance of common stock, net value	20,509,000		18,431,000	(5,880,000)		7,958,000
Issuance of common stock, shares			9,148,273
Issuance of preferred stock, value	21,841,000	15,090,000	6,751,000
Issuance of preferred stock, shares		7,942
Amortization of preferred stock discount	(6,751,000)	6,751,000		(6,751,000)
Conversion of preferred stock to common stock		(21,841,000)	21,841,000
Conversion of preferred stock to common stock, shares		(7,942)	7,942,000
Balance at Sep. 30, 2013	183,322,000		175,282,000	80,460,000	(31,324,000)	(41,096,000)
Balance, shares at Sep. 30, 2013			50,225,367
Balance at Dec. 31, 2013	175,074,000		174,719,000	81,515,000	(41,665,000)	(39,495,000)
Balance, shares at Dec. 31, 2013			50,339,089
Net income	47,398,000			47,398,000
Other comprehensive income (loss)	15,355,000				15,355,000
Stock option exercises, net value	173,000			(700,000)		873,000
Stock option exercises, net shares	85,000		85,000
Stock option expenses, net	19,000		19,000
Restricted stock grants, value			(958,000)	(1,613,000)		2,571,000
Restricted stock grants, shares			248,213
Restricted stock forfeitures, value	(101,000)		147,000	133,000		(381,000)
Restricted stock forfeitures, shares			(54,611)
Restricted stock amortization	356,000		356,000
Dividend payments	(504,000)			(504,000)
Treasury stock purchases	(4,064,000)					(4,064,000)
Treasury stock purchases, Shares			(935,400)
Conversion of preferred stock to common stock	6,750,700
Conversion of preferred stock to common stock, shares	7,942,000
Balance at Sep. 30, 2014	$ 233,706,000		$ 174,283,000	$ 126,229,000	$ (26,310,000)	$ (40,496,000)
Balance, shares at Sep. 30, 2014			49,682,291