Condensed Consolidated Balance Sheets (Parentheticals) (USD $)	Mar. 31, 2012	Dec. 31, 2011
Allowance for doubtful accounts (in Dollars)	$ 109,000	$ 103,000
Common stock, par value (in Dollars per share)	$ 1	$ 1
Common stock, shares authorized	4,000,000	4,000,000
Common stock, shares issued	1,723,888	1,723,888
Common stock, shares outstanding	1,482,680	1,482,680
Less common stock held in treasury, shares	241,208	241,208