Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) (USD $)	Sep. 30, 2013	Dec. 31, 2012
Allowance for doubtful accounts (in Dollars)	$ 68,000	$ 67,000
Common stock, par value (in Dollars per share)	$ 1	$ 1
Common stock, shares authorized (in Shares)	4,000,000	4,000,000
Common stock, shares issued (in Shares)	1,723,888	1,723,888
Common stock, shares outstanding (in Shares)	1,482,680	1,482,680
Less common stock held in treasury, shares (in Shares)	241,208	241,208