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Stockholders' Equity
 12 Months Ended
Dec. 31, 2021
Stockholders' Equity [Abstract]  
Stockholders' Equity
12. Stockholders’ Equity

We have authority to issue 500,000 shares of preferred stock, $20 par value, and our Board of Directors is vested with the authority to establish and designate any series of preferred, to fix the number of shares therein and the variations in relative rights as between each series. In December 1995, our Board of Directors established a new series of preferred shares designated as Series A Participating Preferred Stock. The number of shares constituting the Series A Preferred Stock is 30,000. The Series A Preferred Stock is designed to participate in dividends, ranks senior to our common stock as to dividends and liquidation rights and has voting rights. Each share of the Series A Preferred Stock shall entitle the holder to one thousand votes on all matters submitted to a vote of the stockholders of the Company. No such shares were outstanding at December 31, 2021 and 2020.

In March 2020, our Board of Directors authorized the purchase of up to $20 million of our common stock under a stock repurchase program.  Stock repurchases under this program, during the years ended December 31, 2021 and 2020, were 150,273 and 323,867 shares of our common stock, respectively, at a total cost of $6.5 million and $13.5 million, respectively, thereby completing the 2020 Board of Directors authorization.

In February 2021, our Board of Directors authorized the purchase of up to an additional $20 million of our common stock under a stock repurchase program.  Stock repurchases under this program, during the year ended December 31, 2021, were 464,992 shares of our common stock at a total cost of $20 million, thereby completing the 2021 Board of Directors authorization.

In October 2021, our Board of Directors authorized the purchase of up to an additional $30 million of our common stock under a stock repurchase program.  Stock will be purchased under the program from time to time, in the open market or through private transactions, as market conditions warrant.  Stock repurchases under this program, during the year ended December 31, 2021, were 7,000 shares of our common stock, at a total cost of $0.3 million.  As of December 31, 2021, there was approximately $29.7 million available for future stock purchases under the program.  During the period from January 1, 2022 through February 17, 2022, we have repurchased an additional 64,482 shares of our common stock at a total cost of $3.1 million, thereby reducing the availability under the program to $26.6 million.