Related party transactions (Tables)

12 Months Ended

Dec. 31, 2014

Related party transactions

Schedule of amounts incurred to companies that are principally owned by executives, directors or stockholders of the Company or their families

	Year ended December 31,
	2014		2013		2012
Rent	$	503,995	$	422,882	$	500,785
Consulting and professional fees		9,103		56,986		132,103