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20. Commitments and contingencies (Details Narrative) In Thousands, unless otherwise specified | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Dec. 31, 2012 USD ($) | Dec. 31, 2011 USD ($) | Dec. 31, 2010 USD ($) | Dec. 31, 2012 CNY | Dec. 31, 2011 CNY | Dec. 31, 2010 CNY
Commitments And Contingencies Details Narrative |  |  |  |  |  |
Rental expenses | $ 291 | $ 356 | $ 384 |  |  |
Future minimum rental payments | 262 |  |  |  |  |
Future minimum rental payments due in 2013 | 232 |  |  |  |  |
Future minimum rental payments due 2014 to 2016 | 30 |  |  |  |  |
Banking facilities |  |  |  |  |  |
Amount available for draw in overdraft, import and export credits and foreign exchange contracts | 1,538 | 1,154 | 2,564 |  |  |
Amount of banking facilities utilized for issuance of bank guarantees |  |  |  | 285 | 474 | 188

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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 2, 4 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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