Shareholders' Equity (Details) (USD $)						9 Months Ended					1 Months Ended				3 Months Ended			9 Months Ended	12 Months Ended
	Sep. 30, 2012	Dec. 31, 2011	Sep. 30, 2012 Series B Preferred Stock [Member]	Apr. 16, 2010 UST [Member] Series A Preferred Stock [Member]	Apr. 02, 2010 UST [Member] Series A Preferred Stock [Member]	Sep. 30, 2012 UST [Member] Series B Preferred Stock [Member]	Mar. 31, 2012 UST [Member] Series B Preferred Stock [Member]	Dec. 31, 2011 UST [Member] Series B Preferred Stock [Member]	Apr. 02, 2010 UST [Member] Series B Preferred Stock [Member]	Apr. 16, 2010 UST [Member] Series B Preferred Stock [Member] Amended and restated warrants [Member]	Apr. 30, 2010 UST [Member] Common Stock [Member] Amended and restated warrants [Member]	Sep. 30, 2012 UST [Member] Common Stock [Member] Amended and restated warrants [Member]	Apr. 16, 2010 UST [Member] Common Stock [Member] Amended and restated warrants [Member]	Dec. 12, 2008 UST [Member] Common Stock [Member] Amended and restated warrants [Member]	Sep. 30, 2012 Dutchess [Member] Common Stock [Member]	Jun. 30, 2012 Dutchess [Member] Common Stock [Member]	Dec. 31, 2010 Dutchess [Member] Common Stock [Member]	Sep. 30, 2012 Dutchess [Member] Common Stock [Member]	Dec. 31, 2011 Dutchess [Member] Common Stock [Member]	Apr. 30, 2011 Dutchess [Member] Common Stock [Member]	Jul. 07, 2010 Dutchess [Member] Common Stock [Member]
Class of Stock [Line Items]
Series A Fixed Rate Cumulative Perpetual Preferred Stock (in shares)					72,000
Liquidation preference (in dollars per share)					$ 1,000				$ 1,000
Warrants issued to purchase common stock (in shares)													346,154	346,154
Series B Preferred Stock issued (in shares)	74,426	74,426								74,426
Warrants, exercise price (in dollars per share)												$ 7.234
Amended warrants expiration date											Dec. 12, 2018
Accrued dividends				$ 2,400		$ 9,700,000		$ 6,600,000
Annual dividend rate (in hundredths)						5.00%
Future annual dividend rate (in hundredths)						9.00%
Number of additional directors that could be elected						2
Annual cash dividends on preferred stock						4,200,000
Annual cash dividend payable after December 13, 2013						7,600,000
Terms of Series B Preferred Stock [Abstract]
Amount of common stock in exchange of trust preferred securities						40,000,000
Minimum redeemable preferred stock			18,600,000			100,000,000
Numerator of common shares fraction (in dollars per share)						$ 750
Denominator of common stocks fraction (in dollars per share)						$ 7.234
Series B Preferred Stock convertible number of common stock (in shares)						11,200,000
Period of mandatory conversion of Series B Preferred Stock						seventh anniversary (April 16, 2017)
Numerator of common stock fraction upon mandatory liquidations (in dollars per share)						$ 1,000
Accrued dividend (in dollars per share)						$ 130		$ 89
Maximum number of common stock to be issued on conversion (in shares)						14,400,000
Preferred stock redemption price (in dollars per share)						$ 1,000
Period used to determine price of stock						20 days
Percentage of preferred stock that can be redeemed (in hundredths)						25.00%
Minimum investment repayment (in hundredths)							5.00%
Minimum investment repayment amount							100,000
Minimum investment repayment under updated guidance							3,700,000
Shares available for sale under an investment agreement (in shares)																					1,500,000
Commitment to purchase common stock																					15,000,000
Period committed to purchase common stock																		36 months
Discount on sales price of common stock (in hundredths)																					5.00%
Number of shares sold (in shares)															20,000	170,000	350,000	970,000	430,000
Aggregate purchase price of common stock sold																		2,400,000
Number of shares that require shareholder approval to sell (in shares)																					700,000
Common stock, additional shares authorized under equity line (in shares)																				2,500,000
Number of shares remaining to be sold (in shares)															3,000,000			3,000,000
Additional funds available															$ 8,200,000			$ 8,200,000