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Stockholders' Equity (Detail Textuals)
$ / shares in Units, $ in Millions
 2 Months Ended 3 Months Ended 12 Months Ended
Dec. 07, 2016
$ / shares
Aug. 02, 2010
Director
Sep. 06, 2016
$ / shares
May 26, 2016
$ / shares
Mar. 29, 2016
$ / shares
Dec. 31, 2015
USD ($)
$ / shares
shares
Dec. 31, 2016
USD ($)
share
Quarter
Director
$ / shares
shares
Stockholders' equity              
Preferred stock, shares issued | shares           335,273 335,273
Preferred stock, shares outstanding | shares           335,273 335,273
Preferred stock, par value (in dollars per share)           $ 0.001 $ 0.001
Redemption price per share (in dollars per share)             $ 10.00
Convertible Exchangeable ("Preferred Stock")              
Stockholders' equity              
Preferred stock, shares issued | shares             335,273
Preferred stock, shares outstanding | shares             335,273
Preferred stock, par value (in dollars per share)             $ 10.00
Dividends Payable | $           $ 0.7 $ 0.7
Dividends Payable per share           $ 1.95 $ 1.95
Dividend rate (as a percent)             6.00%
Liquidation preference (in dollars per share)             $ 10.00
Number of shares to be issued for each preferred stock upon conversion | share             0.00507
Conversion price (in dollars per share)             $ 1,974
Shares reserved for future issuance upon conversion | shares             1,698
Minimum bid price per share (in dollars per share)             $ 2,961
Percentage of the closing sales price of the entity's common stock that the conversion price must exceed in order for the preferred stock to be convertible             150.00%
Number of trading days within 30 trading days in which the closing price of the entity's common stock must exceed the conversion price for the preferred stock to be convertible             20 days
Number of trading days during which the closing price of the entity's common stock must exceed the conversion price for at least 20 days in order for the preferred stock to be convertible             30 days
Number of trading days prior to notice of automatic conversion             5 days
Number of quarters in which no preferred stock dividends have been paid | Quarter             6
Number of Board of Directors to be elected by Preferred Stock holders if entity fails to pay dividends on Preferred Stock | Director             2
Number of Board of Directors elected by the Preferred Stock holders when the entity failed to pay dividends on Preferred Stock | Director   2          
Interest rate (as a percent)             6.00%
Debt principal amount per share, basis for exchange (in dollars per share)             $ 10.00
Debt instrument, term             25 years
Dividend declared, date     Sep. 06, 2016 May 26, 2016 Mar. 29, 2016 Dec. 31, 2015  
Declared dividend per share     $ 0.15 $ 0.15 $ 0.15 $ 0.15  
Dividend paid, date     Nov. 01, 2016 Aug. 01, 2016 May 02, 2016    
Dividend paid, date           May 1, August 1 and November 2, 2015, and February 1, 2016  
Dividend, record date     Oct. 17, 2016 Jul. 17, 2017 Apr. 18, 2016    
Convertible Exchangeable ("Preferred Stock") | Board of Directors              
Stockholders' equity              
Dividend declared, date Dec. 07, 2016            
Declared dividend per share $ 0.15            
Dividend paid, date Feb. 01, 2017            
Dividend, record date Jan. 18, 2017