CONSOLIDATED BALANCE SHEETS PARENTHETICALS - USD ($) |
Dec. 31, 2016 |
Dec. 31, 2015 |
|---|---|---|
| Parentheticals | ||
| Allowance for doubtful accounts on trade accounts receivable | $ 15,664,496 | $ 29,352,806 |
| Allowance for doubtful accounts on other receivables | $ 71,548 | $ 74,400 |
| Preferred stock, par value | $ 0.001 | $ 0.001 |
| Preferred stock, shares authorized | 5,000,000 | 5,000,000 |
| Preferred stock, shares issued | 0 | 0 |
| Preferred stock, shares outstanding | 0 | 0 |
| Common stock, par value | $ 0.001 | $ 0.001 |
| Common stock, shares authorized | 95,000,000 | 95,000,000 |
| Common stock, shares issued | 43,579,557 | 43,579,557 |
| Common stock, shares outstanding | 43,579,557 | 43,579,557 |