2.4.0.80019 - Disclosure - 2. Summary of significant accounting policies (Tables)truefalsefalse1false falsefalseFrom2013-01-01to2013-06-30http://www.sec.gov/CIK0000828878duration2013-01-01T00:00:002013-06-30T00:00:001true 1GCIH_SummaryOfSignificantAccountingPoliciesDetailsAbstractGCIH_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Summary Of Significant Accounting Policies Tables2false 2us-gaap_PropertyPlantAndEquipmentTextBlockus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1falsefalsefalse00<table cellspacing="0" cellpadding="0" style="font: 8pt Times New Roman, Times, Serif; width: 100%"> <tr style="vertical-align: bottom; background-color: #CCEEFF"> <td style="width: 80%"><font style="font-size: 8pt">Buildings</font></td> <td style="width: 20%; text-align: right"><font style="font-size: 8pt">8-26 years</font></td></tr> <tr style="vertical-align: bottom; background-color: white"> <td><font style="font-size: 8pt">Equipment</font></td> <td style="text-align: right"><font style="font-size: 8pt">5 years</font></td></tr> <tr style="vertical-align: bottom; background-color: #CCEEFF"> <td><font style="font-size: 8pt">Automobile</font></td> <td style="text-align: right"><font style="font-size: 8pt">5 years</font></td></tr> <tr style="vertical-align: bottom; background-color: white"> <td><font style="font-size: 8pt">Office furniture and fixtures</font></td> <td style="text-align: right"><font style="font-size: 8pt">5 years</font></td></tr> </table>falsefalsefalsenonnum:textBlockItemTypenaTabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 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 210.5-02.13) -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 13 -Subparagraph b -Article 5 false0Property and equipmentfalse2. Summary of significant accounting policies (Tables)UnKnownUnKnownUnKnownUnKnowntruefalsefalseSheethttp://greatchinaholdings.com/role/SummaryOfSignificantAccountingPoliciesTables12