Annual report pursuant to Section 13 and 15(d)

Per Share Data (Narrative) (Details)

v2.4.1.9
Per Share Data (Narrative) (Details)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Earnings Per Share [Abstract]      
Antidilutive securities excluded from computation of earnings per share, amount 3,215,621us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount 55,398,631us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount 54,837,515us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount