Accounts Receivable (Tables)

6 Months Ended

Jun. 30, 2012

Account Receivable [Abstract]

Accounts receivable

	June 30,			December 31,
	2012			2011
Account receivables	$	2,051,250		$	2,150,981
Less: Allowance for doubtful accounts		(235,765	)		(233,282	)
	$	1,815,485		$	1,917,699