|
8. FAIR VALUE MEASUREMENTS (Details 2) (USD $)
In Thousands, unless otherwise specified |
Jun. 30, 2013
|
Dec. 31, 2012
|
|---|---|---|
| Assets: | ||
| Assets | $ 660 | $ 189 |
| Liabilities: | ||
| Liabilities | 11,447 | 5,059 |
|
Commodity contracts [Member]
|
||
| Assets: | ||
| Assets | 660 | 189 |
| Liabilities: | ||
| Liabilities | 1,020 | 167 |
|
Warrants [Member]
|
||
| Liabilities: | ||
| Liabilities | 6,717 | 4,892 |
|
Conversion Features [Member]
|
||
| Liabilities: | ||
| Liabilities | 3,710 | |
|
Level 1 [Member]
|
||
| Assets: | ||
| Assets | 660 | 189 |
| Liabilities: | ||
| Liabilities | 1,020 | 167 |
|
Level 1 [Member] | Commodity contracts [Member]
|
||
| Assets: | ||
| Assets | 660 | 189 |
| Liabilities: | ||
| Liabilities | 1,020 | 167 |
|
Level 1 [Member] | Warrants [Member]
|
||
| Liabilities: | ||
| Liabilities | ||
|
Level 1 [Member] | Conversion Features [Member]
|
||
| Liabilities: | ||
| Liabilities | ||
|
Level 2 [Member]
|
||
| Assets: | ||
| Assets | ||
| Liabilities: | ||
| Liabilities | ||
|
Level 2 [Member] | Commodity contracts [Member]
|
||
| Assets: | ||
| Assets | ||
| Liabilities: | ||
| Liabilities | ||
|
Level 2 [Member] | Warrants [Member]
|
||
| Liabilities: | ||
| Liabilities | ||
|
Level 2 [Member] | Conversion Features [Member]
|
||
| Liabilities: | ||
| Liabilities | ||
|
Level 3 [Member]
|
||
| Assets: | ||
| Assets | ||
| Liabilities: | ||
| Liabilities | 10,427 | 4,892 |
|
Level 3 [Member] | Commodity contracts [Member]
|
||
| Assets: | ||
| Assets | ||
| Liabilities: | ||
| Liabilities | ||
|
Level 3 [Member] | Warrants [Member]
|
||
| Liabilities: | ||
| Liabilities | 6,717 | 4,892 |
|
Level 3 [Member] | Conversion Features [Member]
|
||
| Liabilities: | ||
| Liabilities | $ 3,710 |