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Preferred Shares
12 Months Ended
Dec. 31, 2019
Equity [Abstract]  
Preferred Shares

8.    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 16, “Rights Agreement” for information concerning a rights agreement pursuant to which shares of the Series A Junior Participating Preferred Stock may be issued.