Consolidated Statements of Equity (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Number of shares of common stock issued under stock option plan	11,888	20,435	48,389
Number of common stock shares purchased	251,120	135,103	173,956
Common stock	$ 1.370	$ 1.250	$ 1.130
Common Stock [Member]
Number of shares of common stock issued under stock option plan	11,888	20,435	48,389
Additional Paid-in Capital [Member]
Number of shares of common stock issued under stock option plan	11,888	20,435	48,389
Treasury Stock [Member]
Number of common stock shares purchased	251,120	135,103	173,956