XML 55 R56.htm IDEA: XBRL DOCUMENT v2.4.1.9
Inventory - Additional Information (Detail) (USD $)
Dec. 31, 2014
Dec. 31, 2013
Inventory Disclosure [Abstract]    
Non-current inventory $ 5,110,967us-gaap_InventoryNoncurrent $ 5,206,318us-gaap_InventoryNoncurrent