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Share Repurchase (Narrative) (Details) (USD $)
3 Months Ended 0 Months Ended 3 Months Ended 7 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Aug. 15, 2013
August 2013 Share Repurchase Agreement
Mar. 31, 2014
August 2013 Share Repurchase Agreement
Mar. 31, 2014
August 2013 Share Repurchase Agreement
Equity, Class of Treasury Stock [Line Items]          
Stock repurchase program, authorized amount     $ 7,000,000    
Treasury stock, shares acquired         127,510
Purchase of treasury shares 0 513,000     1,300,000
Stock repurchase program, remaining authorized repurchase amount       $ 5,700,000