| Years ended December 31, | |||||
| Notes | 2011 | 2010 | 2009 | ||
| Net sales | 2P | $ | 188,938 | 178,260 | 197,801 |
| Cost of sales | 2Q | (135,068) | (128,307) | (139,672) | |
| Gross profit | 53,870 | 49,953 | 58,129 | ||
| Administrative and selling expenses | (25,718) | (25,871) | (28,611) | ||
| Distribution expenses | (16,169) | (13,239) | (13,678) | ||
| Total operating expenses | 2Q | (41,887) | (39,110) | (42,289) | |
| Operating income | 11,983 | 10,843 | 15,840 | ||
| Other expenses, net | 2R | (4,241) | (6,672) | (5,529) | |
| Operating income after other expenses, net | 7,742 | 4,171 | 10,311 | ||
| Comprehensive financing result: | |||||
| Financial expense | 12 | (17,927) | (16,302) | (13,513) | |
| Financial income | 484 | 439 | 385 | ||
| Results from financial instruments | 12 | (4,112) | (956) | (2,127) | |
| Foreign exchange results | (1,804) | 926 | (266) | ||
| Monetary position result | 2S | 159 | 266 | 415 | |
| Comprehensive financing result | (23,200) | (15,627) | (15,106) | ||
| Equity in income of associates | 9A | (409) | (524) | 154 | |
| Loss before income tax | (15,867) | (11,980) | (4,641) | ||
| Income tax | 15 | (3,297) | (4,509) | 10,566 | |
| Income (loss) before discontinued operations | (19,164) | (16,489) | 5,925 | ||
| Discontinued operations | 3B | - | - | (4,276) | |
| Consolidated net income (loss) | (19,164) | (16,489) | 1,649 | ||
| Non-controlling interest net income (loss) | (37) | 27 | 240 | ||
| CONTROLLING INTEREST NET INCOME (LOSS) | $ | (19,127) | (16,516) | 1,409 | |
| BASIC EARNINGS (LOSS) PER SHARE OF CONTINUING OPERATIONS | 18 | $ | (0.61) | (0.53) | 0.20 |
| Basic earnings (loss) per share of discontinued operations | 18 | $ | - | - | (0.15) |
| DILUTED EARNINGS (LOSS) PER SHARE OF CONTINUING OPERATIONS | 18 | $ | - | - | (0.20) |
| Diluted loss per share of discontinued operations | 18 | $ | - | - | (0.15) |