Consolidated Balance Sheets (Parentheticals) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Accounts receivable, allowance for doubtful accounts (in Dollars)	$ 560,000	$ 725,000
Preferred stock, par value (in Dollars per share)	$ 1	$ 1
Preferred stock, shares authorized	300,000	300,000
Preferred stock, shares issued	0	0
Common stock par value (in Dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized	50,000,000	50,000,000
Common stock, shares issued	6,520,408	6,115,907
Common stock, shares outstanding	6,520,408	6,115,907