CONSOLIDATED BALANCE SHEETS (Parenthenticals) (USD $) | Sep. 30, 2011 | Dec. 31, 2010 |
|---|---|---|
| Statement Of Financial Position [Abstract] | ||
| Allowance for doubtful accounts for accounts receivable | $ 727,754 | $ 470,998 |
| Accumulated depreciation on Leasehold improvements and equipment | $ 13,325,120 | $ 12,428,434 |