CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Accounts receivable, allowance for doubtful accounts	$ 960,182	$ 850,123
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	75,000,000	75,000,000
Common stock, shares issued	27,603,336	27,603,336
Common stock, shares outstanding	27,541,491	27,541,491
Treasury stock, shares	61,845	61,845