XML 21 R28.htm IDEA: XBRL DOCUMENT v2.4.0.6
Prepaid Expenses and Other Current Assets (Details) (USD $)
Sep. 30, 2012
Dec. 31, 2011
Prepaid Expenses [Abstract]    
Advance payment to suppliers $ 223,349 $ 290,373
Prepaid income taxes 249,346 76,557
Certificates of deposit - restricted 86,411 83,598
Prepaid insurance and other 377,858 172,760
Prepaid expenses and other current assets $ 936,964 $ 623,288