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Computation of Earnings per Share (Detail Textuals) - shares
3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
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Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Anti-dilutive common stock Share purchase (in shares) 54,034 821,838 54,034 821,838