Geographic Information - Selected Information by Geographic Area (Detail) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues	$ 7,125,692	$ 6,673,038	$ 21,419,234	$ 18,737,115
Total assets	59,780,696		59,780,696		36,868,664
Total Long-lived Assets	12,851,796		12,851,796		966,109
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues	1,026,022	2,598,514	2,928,348	6,443,375
Total assets	19,359,366		19,359,366		31,898,401
Total Long-lived Assets	354,961		354,961		171,167
Switzerland [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues	5,456,152	4,074,524	17,822,060	12,293,740
Total assets	4,088,611		4,088,611		1,189,183
Total Long-lived Assets	21,966		21,966		59,582
United Kingdom [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total assets	36,103,352		36,103,352		3,538,446
Total Long-lived Assets	12,473,761		12,473,761		734,280
Other Countries [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues	643,518		668,826
Total assets	229,367		229,367		242,634
Total Long-lived Assets	$ 1,108		$ 1,108		$ 1,080