Preferred Shares	12 Months Ended
Dec. 31, 2020
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 15, “Rights Agreement” for information concerning a rights agreement pursuant to which shares of the Series A Junior Participating Preferred Stock may be issued.

The entire disclosure for terms, amounts, nature of changes, rights and privileges, dividends, and other matters related to preferred stock.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-URI http://asc.fasb.org/topic&trid=2208762

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