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 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Class of Stock [Line Items]        
Common Stock, Capital Shares Reserved for Future Issuance 7,500,000   7,500,000  
Stock Issued and Outstanding, Shares, Dividend Reinvestment Plan 267,554   267,554  
Stock Issued and Outstanding, Value, Dividend Reinvestment Plan $ 2,824   $ 2,824  
Stock Issued During Period, Shares, Dividend Reinvestment Plan 17,904 15,268 54,088 38,742
Stock Issued During Period, Value, Dividend Reinvestment Plan $ 177 $ 159 $ 556 $ 399