Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity Dividend Reinvestment and Direct Stock Purchase Plan (Details)

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Stockholders' Equity Dividend Reinvestment and Direct Stock Purchase Plan (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Class of Stock [Line Items]    
Common Stock, Capital Shares Reserved for Future Issuance 7,500,000  
Stock Issued and Outstanding, Shares, Dividend Reinvestment Plan 297,940  
Stock Issued and Outstanding, Value, Dividend Reinvestment Plan $ 3,069  
Stock Issued During Period, Shares, Dividend Reinvestment Plan 14,648 19,412
Stock Issued During Period, Value, Dividend Reinvestment Plan $ 110 $ 200