CONDENSED BALANCE SHEETS (Parenthetical) - USD ($)	Mar. 31, 2019	Dec. 31, 2018
STOCKHOLDERS' EQUITY :
Preferred Stock, Par Value	$ 1.00	$ 1.00
Preferred Stock, Shares Authorized	4,000,000	4,000,000
Preferred Stock, Liquidation Preference, Value	$ 0	$ 0
Common Stock, Par Value	$ 0.10	$ 0.10
Common Stock, Shares Authorized	200,000,000	200,000,000
Common Stock, Shares Issued	59,079,759	59,079,759
Common Stock, Shares, Outstanding	58,582,172	58,582,172
Treasury Stock, Par Value	$ 0.10	$ 0.10
Treasury Stock, Shares	497,587	497,587
Series A Convertible Preferred stock [Member]
STOCKHOLDERS' EQUITY :
Preferred Stock, Shares Authorized	50,000	50,000
Preferred Stock, Shares Issued	0	0
Preferred Stock, Shares Outstanding	0	0