Quarterly report pursuant to Section 13 or 15(d)

Stock Based and Deferred Compensation (Details Textual)

v2.4.1.9
Stock Based and Deferred Compensation (Details Textual)
3 Months Ended
Mar. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Shares of common stock authorized under stock compensation plan (up to) 10,050,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
Remaining shares available for grant 1,046,688us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
Non-Management [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Vesting period for non-vested stock awards and stock options (in years) 5 years
Management [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Vesting period for non-vested stock awards and stock options (in years) 3 years