v2.4.0.6
Inventory (Details Textual) (USD $)
9 Months Ended
Sep. 30, 2012
Dec. 31, 2011
Inventory (Textual) [Abstract]    
Increase (decrease) in inventory reserve $ 51,000  
Inventory reserve (158,000) (107,000)
Prepaid assets 1,447,000 2,485,000
Prepaid inventory [Member]
   
Inventory (Textual) [Abstract]    
Prepaid assets $ 1,037,000 $ 2,158,000