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Income (Loss) Per Share (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Net income (loss) attributable to common stockholders - Basic and diluted:    
Net income (loss) attributable to the Company $ (13) $ (134)
Less: Dividends on preferred stock (1,673) (894)
Undistributed net income (loss) allocated to common stockholders (6,836) (3,909)
Distributed and undistributed net income (loss) - basic and diluted $ (1,803) $ (1,072)
Weighted average common shares outstanding:    
Weighted average common shares outstanding – basic and diluted (in shares) 27,267 28,343
Income (loss) per share - basic and diluted:    
Net income (loss) allocated to common stockholders per share (in dollars per share) $ (0.07) $ (0.04)
Performance Shares    
Net income (loss) attributable to common stockholders - Basic and diluted:    
Dividends $ (67) $ (35)
Restricted Stock [Member]    
Net income (loss) attributable to common stockholders - Basic and diluted:    
Dividends (50) (9)
Accumulated Deficit    
Net income (loss) attributable to common stockholders - Basic and diluted:    
Net income (loss) attributable to the Company (13)  
Common Stock    
Net income (loss) attributable to common stockholders - Basic and diluted:    
Dividends $ (5,033) $ (2,837)