v2.4.1.9
Income Taxes - Components of Net Deferred Income Taxes (Detail) (USD $)
Mar. 28, 2015
Current deferred tax assets:  
Warranty reserve $ 475,914us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsWarrantyReserves
Repurchase reserve 80,158dvly_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsRepurchaseReserve
Loan loss reserve 37,595us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses
Allowance for doubtful accounts 7,072us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts
Inventory reserve 9,318us-gaap_DeferredTaxAssetsInventory
Total current deferred tax asset 610,057us-gaap_DeferredTaxAssetsGrossCurrent
Non-current deferred tax assets:  
Goodwill impairment 1,494,838dvly_DeferredTaxAssetsGoodwillImpairment
Total non-current deferred tax assets 1,494,838us-gaap_DeferredTaxAssetsNetNoncurrent
Current deferred tax liabilities:  
Prepaid insurance (76,803)us-gaap_DeferredTaxLiabilitiesPrepaidExpenses
Total current deferred tax liabilities (76,803)us-gaap_DeferredTaxLiabilitiesCurrent
Non-current deferred tax liability:  
Accelerated depreciation (78,168)dvly_NonCurrentDeferredTaxLiabilitiesAcceleratedDepreciation
Sale of assets 8,468dvly_NonCurrentDeferredTaxLiabilitiesSaleOfAssets
Total non-current deferred tax liability (69,700)us-gaap_DeferredTaxLiabilitiesNoncurrent
Total deferred tax assets (liabilities) - net $ 1,958,392us-gaap_DeferredTaxAssetsLiabilitiesNet