Accrued Expenses (Tables)

12 Months Ended

Dec. 31, 2012

Accounts Payable and Accrued Liabilities [Abstract]

Schedule of accrued expenses

Accrued expenses at December 31, 2012 and 2011 consisted of the following:

	2012		2011
Payroll and vacation	$	121,362	$	112,121
Other		44,383		70,437
Total accrued expenses	$	165,745	$	182,597