SHAREHOLDERS' EQUITY (Preferred and Common Stock) (Details) - $ / shares	Jun. 30, 2020	Dec. 31, 2019
Class of Stock [Line Items]
Preferred stock, par value	$ 1	$ 1
Preferred stock, shares authorized (in shares)	500,000	500,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value	$ 1	$ 1
Common stock, shares authorized (in shares)	3,000,000	3,000,000
Common stock, shares issued (in shares)	2,533,315	2,531,552
Treasury (in shares)	1,867	436
Common stock, shares outstanding (in shares)	2,531,448	2,531,116
Class A Common Stock
Class of Stock [Line Items]
Common stock, par value	$ 1	$ 1
Common stock, shares authorized (in shares)	2,000,000	2,000,000
Common stock, shares issued (in shares)	0	0
Common stock, shares outstanding (in shares)	0	0