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Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 31 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.31(a)(3)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 false2Retained earnings37false 6us-gaap_StockholdersEquityBeforeTreasuryStockus-gaap_truecreditinstantfalsefalsefalsefalsefalsefalsefalsefalsetotalLabel1truefalsefalse5585600155856001USD$falsefalsefalse2truefalsefalse4750481047504810USD$falsefalsefalsexbrli:monetaryItemTypemonetaryTotal amount of stockholders' equity (deficit) items including stock value, paid in capital, retained earnings and including equity attributable to noncontrolling interests and before deducting the carrying value of treasury stock.No definition available.true2Stockholders equity before treasury stock38false 6us-gaap_TreasuryStockValueus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsetruenegatedLabel1truefalsefalse-1019840-1019840USD$falsefalsefalse2truefalsefalse-882022-882022USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThe amount allocated to treasury stock. 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