v2.4.1.9
Income Taxes - Components of Net Deferred Income Taxes (Detail) (USD $)
Dec. 27, 2014
Dec. 28, 2013
Current Deferred Tax Assets:    
Warranty Reserve $ 475,914us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsWarrantyReserves $ 452,978us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsWarrantyReserves
Repurchase Reserve 68,449dvly_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsRepurchaseReserve 58,298dvly_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsRepurchaseReserve
Allowance for Loan Losses 35,030us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses 77,201us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses
Allowance for Doubtful Accounts 7,072us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts 5,734us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts
Inventory Reserve 9,552us-gaap_DeferredTaxAssetsInventory 5,531us-gaap_DeferredTaxAssetsInventory
Accrued Legal Fees   3,823us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsLegalSettlements
Total Current Deferred Tax Asset 596,017us-gaap_DeferredTaxAssetsGrossCurrent 603,565us-gaap_DeferredTaxAssetsGrossCurrent
Non-Current Deferred Tax Assets:    
Goodwill Impairment 1,509,238dvly_DeferredTaxAssetsGoodwillImpairment 1,706,420dvly_DeferredTaxAssetsGoodwillImpairment
Total Non-Current Deferred Tax Assets 1,509,238us-gaap_DeferredTaxAssetsNetNoncurrent 1,706,420us-gaap_DeferredTaxAssetsNetNoncurrent
Current Deferred Tax Liabilities:    
Prepaid insurance (17,089)us-gaap_DeferredTaxLiabilitiesPrepaidExpenses (35,872)us-gaap_DeferredTaxLiabilitiesPrepaidExpenses
Total Current Deferred Tax Liabilities (17,089)us-gaap_DeferredTaxLiabilitiesCurrent (35,872)us-gaap_DeferredTaxLiabilitiesCurrent
Non-Current Deferred Tax Liability:    
Accelerated Depreciation (78,168)dvly_NonCurrentDeferredTaxLiabilitiesAcceleratedDepreciation (93,709)dvly_NonCurrentDeferredTaxLiabilitiesAcceleratedDepreciation
Sale of Assets 8,468dvly_NonCurrentDeferredTaxLiabilitiesSaleOfAssets 8,468dvly_NonCurrentDeferredTaxLiabilitiesSaleOfAssets
Total Non-Current Deferred Tax Liability (69,700)us-gaap_DeferredTaxLiabilitiesNoncurrent (85,241)us-gaap_DeferredTaxLiabilitiesNoncurrent
Total Deferred Tax Assets (Net) $ 2,018,466us-gaap_DeferredTaxAssetsLiabilitiesNet $ 2,188,872us-gaap_DeferredTaxAssetsLiabilitiesNet