Quarterly report pursuant to Section 13 or 15(d)

Public Offering of Common Stock (Details)

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Public Offering of Common Stock (Details) - USD ($)
$ / shares in Units, $ in Millions
Feb. 13, 2015
Feb. 05, 2015
Jun. 30, 2015
Dec. 31, 2014
Public Offering of Common Stock        
Offering, issuance and sale of common shares under Underwriting Agreement   4,728,000    
Par value of common stock   $ 0.01 $ 0.01  
Shares of common stock sold 5,437,200   24,932,392 19,488,814
Public offering price (in dollars per share) $ 2.75 $ 2.75    
Number of days to underwriter to sell additional common shares   30 days    
Additional Common Shares to cover over-allotments   709,200    
Gross proceeds from issuance of common stock $ 15.0      
Underwriting discounts, commissions and other estimated offering expenses $ 1.4