Consolidated Balance Sheets (Parentheticals) (USD $)	Dec. 31, 2012	Dec. 31, 2011
Allowance for doubtful accounts (in Dollars)	$ 239,274	$ 260,568
Common Class A [Member]
Common stock par value (in Dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	20,000,000	20,000,000
Common stock, shares issued	13,221,404	13,221,404
Common stock, shares outstanding	13,221,404	13,221,404