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Related Party Transactions (Detail) (USD $)
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2012
Sep. 30, 2011
Dec. 31, 2011
Dec. 31, 2010
Revenue from Related Parties $ 0 $ 277,056 $ 0 $ 902,638 $ 902,638 $ 1,491,875
Accounts Receivable, Related Parties 0   0   28,289 565,170
Related Party Transaction, Description of Transaction         three-year renewable lease agreement  
Operating Leases, Rent Expense 118,900 49,463 409,900 56,394 193,700 13,200
Due to Related Parties, Current         0 197,776
Diamond Sofa [Member]
           
Revenue from Related Parties 0   0   0 1,154,971
Diamond Bar [Member]
           
Revenue from Related Parties   277,056   902,638 902,638 336,904
Operating Leases, Rent Expense         15,192  
Monthly Rent Expense [Member]
           
Operating Leases, Rent Expense     38,100   38,100  
Rental Expense [Member]
           
Operating Leases, Rent Expense $ 96,000   $ 341,000   $ 163,300