Preferred Shares

12 Months Ended

Dec. 31, 2017

Equity [Abstract]

Preferred Shares

5.    PREFERRED SHARES

The Company has authorized 5.0 million shares of $0.01 par value preferred stock, of which 400,000 shares have been designated as Series A Junior Participating Preferred Stock.  No such shares have been issued. See Note 13, “Rights Agreement” for information concerning a rights agreement pursuant to which shares of the Series A Junior Participating Preferred Stock may be issued.