|
CONSOLIDATED BALANCE SHEETS (Parentheticals) (USD $)
|
Jun. 30, 2011
|
Dec. 31, 2010
|
|---|---|---|
| Statement Of Financial Position [Abstract] | Â | Â |
| Allowance for doubtful accounts for accounts receivable | $ 727,754 | $ 470,998 |
| Accumulated depreciation on Leasehold improvements and equipment | $ 13,041,942 | $ 12,428,434 |