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Unaudited Interim Condensed Consolidated Statements of Stockholders' Equity (USD $)
Common Stock [Member]
Additional Paid-in Capital [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
Retained Earnings [Member]
Total
Net income at Dec. 31, 2010       $ (189,112,000) $ (189,112,000)
Balance at Dec. 31, 2010 5,000 282,435,000 37,000 (26,995,000) 255,482,000
Balance (in Shares) at Dec. 31, 2010 488,581        
Stock-based compensation (in Shares) 7,138        
Issuance of common stock, net (Note 10) 19,000 6,883,000     6,902,000
Issuance of common stock, net (Note 10) (in Shares) 1,953,931        
Balance at Dec. 31, 2011 24,000 292,730,000 37,000 (216,107,000) 76,684,000
Balance (in Shares) at Dec. 31, 2011 2,449,648        
Net income at Dec. 31, 2012       2,726,000 2,726,000
Balance at Dec. 31, 2012 24,000 293,109,000 37,000 (280,091,000) 13,079,000
Balance (in Shares) at Dec. 31, 2012 2,449,648       2,449,648
Stock-based compensation   69,000     69,000
Stock-based compensation (in Shares) 7,142        
Balance at Mar. 31, 2013 24,000 293,178,000 37,000 (277,365) 15,874,000
Balance (in Shares) at Mar. 31, 2013 2,456,790        
Net income at Dec. 31, 2012       1,408,000 1,408,000
Balance at Dec. 31, 2012 24,000   37,000 (280,091,000) 13,079,000
Balance (in Shares) at Dec. 31, 2012 2,449,648       2,449,648
Stock-based compensation (in Shares) 20,000        
Balance at Dec. 31, 2013 25,000 293,453,000   (278,683,000) 14,795,000
Balance (in Shares) at Dec. 31, 2013 2,469,648       2,469,648
Net income at Dec. 31, 2013       54,000 54,000
Stock-based compensation (in Shares) 7,142        
Issuance of common stock, net (Note 10) 58,000 40,775,000     40,833,000
Issuance of common stock, net (Note 10) (in Shares) 5,833,214        
Excess of consideration over acquired assets (Note 1)   (28,246,000)     (28,246,000)
Balance at Mar. 31, 2014 $ 83,000 $ 305,982,000   $ (278,629,000) $ 27,436,000
Balance (in Shares) at Mar. 31, 2014 8,310,004       8,310,004