Restructuring charges (Tables)

12 Months Ended

Dec. 31, 2014

Restructuring charges

Schedule of cash components and activity associated with the realignment of workforce and business

	Balance as of January 1, 2014		Charges		Cash Payment		Balance as of December 31, 2014
Severance and benefits	$	—	$	987,994	$	792,221	$	195,773
Legal expenses and other	$	—		54,373		54,373		—
Total restructuring charges	$	—	$	1,042,367	$	846,594	$	195,773