XML 60 R23.htm IDEA: XBRL DOCUMENT v2.4.0.8
Inventories - Inventory components (Details) (USD $)
Jun. 30, 2013
Dec. 31, 2012
Inventory Disclosure [Abstract]    
Raw materials and sub-assemblies $ 957,083 $ 921,677
Finished goods 75,083 19,390
Total $ 1,032,166 $ 941,067