Earnings Per Common Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013		Mar. 31, 2012
Earnings Per Share Reconciliation [Abstract]
Net Income Applicable to Common Stock	$ 4,712		$ 2,448
Convertible preferred stock dividends	1,095		1,056
Net income applicable to common stock for calculation of diluted earnings per share	$ 5,807		$ 3,504
Weighted average shares outstanding (in shares)	9,266	[1]	8,534	[1]
Effect of convertible preferred stock (in shares)	12,026		38,618
Restricted stock units (in shares)	361		140
Stock units for deferred compensation plan for non-employee directors (in shares)	117		26
Effect of stock options (in shares)	61		0
Weighted average shares outstanding for calculation of diluted earnings per share (in shares)	21,831		47,318
Net income (loss) per common share [Abstract]
Basic (in dollars per share)	$ 0.51	[1]	$ 0.29	[1]
Diluted (in dollars per share)	$ 0.27		$ 0.07
Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive shares excluded from computation of diluted loss per share (in shares)	40,000		200,000
Warrant [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)	346,154		346,154

[1] Basic net income per common share includes weighted average common shares outstanding during the period and participating share awards.