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Unaudited Interim Condensed Consolidated Statements of Stockholders Equity (USD $)
In Thousands, except Share data
Total
Common Stock
Additional Paid-in Capital
Accumulated deficit
BALANCE, value at Dec. 31, 2011 $ 434,213 $ 54 $ 520,261 $ (86,102)
BALANCE, number of shares at Dec. 31, 2011   5,357,224    
Net Income / (Loss) (4,460)     (4,460)
Issuance of vested and non-vested shares and amortization of stock-based compensation, value (Note 13) 1,402 1 1,401  
Issuance of vested and non-vested shares and amortization of stock-based compensation, shares (Note 13)   105,333    
Dividends declared and paid ($0.45) (2,416)     (2,416)
Repurchase and cancellation of common shares, value (Note 9) (861) (1) (860)  
Repurchase and cancellation of common shares, shares (Note 9)   (61,730)    
BALANCE, value at Jun. 30, 2012 427,878 54 520,802 (92,978)
BALANCE, number of shares at Jun. 30, 2012   5,400,827    
BALANCE, value at Dec. 31, 2012 116,746 54 520,946 (404,254)
BALANCE, number of shares at Dec. 31, 2012   5,400,810    
Net Income / (Loss) 1,964     1,964
Issuance of vested and non-vested shares and amortization of stock-based compensation, value (Note 13) 600   600  
Issuance of vested and non-vested shares and amortization of stock-based compensation, shares (Note 13)   12,000    
Repurchase and cancellation of common shares, value (Note 9) 0      
BALANCE, value at Jun. 30, 2013 $ 119,310 $ 54 $ 521,546 $ (402,290)
BALANCE, number of shares at Jun. 30, 2013   5,412,810