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13. SEGMENT REPORTING (Details) (USD $) | 3 Months Ended | 12 Months Ended
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Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2014 | Dec. 31, 2013
Sales, net | $ 4,445,000 us-gaap_SalesRevenueNet | $ 4,046,000 us-gaap_SalesRevenueNet | $ 3,693,000 us-gaap_SalesRevenueNet | $ 2,972,000 us-gaap_SalesRevenueNet | $ 3,577,000 us-gaap_SalesRevenueNet | $ 3,044,000 us-gaap_SalesRevenueNet | $ 3,609,000 us-gaap_SalesRevenueNet | $ 3,042,000 us-gaap_SalesRevenueNet | $ 15,156,159 us-gaap_SalesRevenueNet | $ 13,271,914 us-gaap_SalesRevenueNet
Cost of Sales |  |  |  |  |  |  |  |  | 6,139,553 us-gaap_CostOfGoodsAndServicesSold | 5,588,439 us-gaap_CostOfGoodsAndServicesSold
Gross Margin | 2,554,000 us-gaap_GrossProfit | 2,500,000 us-gaap_GrossProfit | 2,241,000 us-gaap_GrossProfit | 1,722,000 us-gaap_GrossProfit | 2,023,000 us-gaap_GrossProfit | 1,759,000 us-gaap_GrossProfit | 2,144,000 us-gaap_GrossProfit | 1,757,000 us-gaap_GrossProfit | 9,016,606 us-gaap_GrossProfit | 7,683,475 us-gaap_GrossProfit
Selling Expenses |  |  |  |  |  |  |  |  | 3,719,761 us-gaap_SellingExpense | 3,079,060 us-gaap_SellingExpense
Contribution Margin |  |  |  |  |  |  |  |  | 5,296,845 WVVI_ContributionMargin | 4,604,415 WVVI_ContributionMargin
Percent of Sales |  |  |  |  |  |  |  |  | 100.00%WVVI_PercentOfSales | 100.00%WVVI_PercentOfSales
Direct Sales |  |  |  |  |  |  |  |  |  |
Sales, net |  |  |  |  |  |  |  |  | 5,197,121 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = WVVI_DirectSalesMember | 3,768,963 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = WVVI_DirectSalesMember
Cost of Sales |  |  |  |  |  |  |  |  | 1,307,687 us-gaap_CostOfGoodsAndServicesSold / us-gaap_StatementBusinessSegmentsAxis = WVVI_DirectSalesMember | 989,262 us-gaap_CostOfGoodsAndServicesSold / us-gaap_StatementBusinessSegmentsAxis = WVVI_DirectSalesMember
Gross Margin |  |  |  |  |  |  |  |  | 3,889,434 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = WVVI_DirectSalesMember | 2,779,701 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = WVVI_DirectSalesMember
Selling Expenses |  |  |  |  |  |  |  |  | 2,435,865 us-gaap_SellingExpense / us-gaap_StatementBusinessSegmentsAxis = WVVI_DirectSalesMember | 1,757,128 us-gaap_SellingExpense / us-gaap_StatementBusinessSegmentsAxis = WVVI_DirectSalesMember
Contribution Margin |  |  |  |  |  |  |  |  | 1,453,569 WVVI_ContributionMargin / us-gaap_StatementBusinessSegmentsAxis = WVVI_DirectSalesMember | 1,022,573 WVVI_ContributionMargin / us-gaap_StatementBusinessSegmentsAxis = WVVI_DirectSalesMember
Percent of Sales |  |  |  |  |  |  |  |  | 34.30%WVVI_PercentOfSales / us-gaap_StatementBusinessSegmentsAxis = WVVI_DirectSalesMember | 28.40%WVVI_PercentOfSales / us-gaap_StatementBusinessSegmentsAxis = WVVI_DirectSalesMember
Distributor Sales |  |  |  |  |  |  |  |  |  |
Sales, net |  |  |  |  |  |  |  |  | 9,959,038 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = WVVI_DistributorSalesMember | 9,502,951 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = WVVI_DistributorSalesMember
Cost of Sales |  |  |  |  |  |  |  |  | 4,831,866 us-gaap_CostOfGoodsAndServicesSold / us-gaap_StatementBusinessSegmentsAxis = WVVI_DistributorSalesMember | 4,599,177 us-gaap_CostOfGoodsAndServicesSold / us-gaap_StatementBusinessSegmentsAxis = WVVI_DistributorSalesMember
Gross Margin |  |  |  |  |  |  |  |  | 5,127,172 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = WVVI_DistributorSalesMember | 4,903,774 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = WVVI_DistributorSalesMember
Selling Expenses |  |  |  |  |  |  |  |  | 1,283,896 us-gaap_SellingExpense / us-gaap_StatementBusinessSegmentsAxis = WVVI_DistributorSalesMember | 1,321,932 us-gaap_SellingExpense / us-gaap_StatementBusinessSegmentsAxis = WVVI_DistributorSalesMember
Contribution Margin |  |  |  |  |  |  |  |  | $ 3,843,276 WVVI_ContributionMargin / us-gaap_StatementBusinessSegmentsAxis = WVVI_DistributorSalesMember | $ 3,581,842 WVVI_ContributionMargin / us-gaap_StatementBusinessSegmentsAxis = WVVI_DistributorSalesMember
Percent of Sales |  |  |  |  |  |  |  |  | 65.70%WVVI_PercentOfSales / us-gaap_StatementBusinessSegmentsAxis = WVVI_DistributorSalesMember | 71.60%WVVI_PercentOfSales / us-gaap_StatementBusinessSegmentsAxis = WVVI_DistributorSalesMember

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- Definition The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.2(a),(d)) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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- Definition Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1,2) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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- Definition Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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- Definition Expenses recognized in the period that are directly related to the selling and distribution of products or services. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.4) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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- Definition No authoritative reference available. + References No definition available. + Details
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Balance Type: | na
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- Details
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Namespace Prefix: |
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Period Type: |

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- Details
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