Quarterly report pursuant to sections 13 or 15(d)

Shareholders' Equity - Capital Stock (Details)

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Shareholders' Equity - Capital Stock (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
3 Months Ended 1 Months Ended
Jun. 24, 2013
Mar. 31, 2014
Series A Preferred Stock
May 02, 2014
Series A Preferred Stock
Subsequent event
Class of Stock [Line Items]      
At the market preferred stock, shares authorized 3,000,000    
At the market shares sold   609,486 448,886
Proceeds from Issuance of public offering   $ 13,969 $ 10,078
Offering expenses   279 201
Dividends paid   $ 3,225  
Dividends paid per share on monthly basis   $ 0.17