Consolidated Balance Sheets (Parentheticals) (USD $)	Sep. 30, 2013	Dec. 31, 2012
Receivables, allowance for doubtful accounts (in Dollars)	$ 137,000	$ 175,705
Preferred stock par value (in Dollars per share)	$ 1.66	$ 1.66
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares issued	0	0
Common stock par value (in Dollars per share)	$ 1.66	$ 1.66
Common stock, shares authorized	90,000,000	90,000,000
Common stock, shares issued	5,118,134	5,103,918
Common stock, shares outstanding	5,118,134	5,103,918