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Level 4 Nature of Operations and Consolidation (Details)
12 Months Ended 12 Months Ended
Dec. 31, 2013
Feb. 11, 2013
IPO [Member]
Dec. 31, 2013
Secondary public offerings [Member]
Shares of common stock issued in IPO 13,529,412    
Ownership percentage of majority stockholder 19.80% 68.70%  
Registered shares of common stock     18,050,000
Treasury stock, shares acquired 3,864,062