Stockholders' Equity

12 Months Ended

Dec. 31, 2014

Equity [Abstract]

Stockholders' Equity

10. Stockholders’ Equity

Under a Stockholder Rights Plan adopted by the Board of Directors on November 24, 2008, each share of common stock includes one right to purchase from the Company a unit consisting of one one-hundredth of a share (a “Fractional Share”) of Series A Junior Participating Preferred Stock at a specific purchase price per Fractional Share, subject to adjustment in certain events. The rights will cause substantial dilution to any person or group that attempts to acquire the Company without the approval of the Company’s Board of Directors.