v2.4.1.9
Accrued Expenses - Schedule of Accrued Expenses (Detail) (USD $)
Dec. 27, 2014
Dec. 28, 2013
Payables and Accruals [Abstract]    
Accrued dealer incentive program $ 347,421dvly_AccruedDealerIncentiveProgramCurrent $ 230,429dvly_AccruedDealerIncentiveProgramCurrent
Accrued third party billings 572,844us-gaap_AccountsPayableTradeCurrent 542,079us-gaap_AccountsPayableTradeCurrent
Accrued compensation 410,143us-gaap_EmployeeRelatedLiabilitiesCurrent 339,743us-gaap_EmployeeRelatedLiabilitiesCurrent
Accrued insurance 86,644us-gaap_AccruedInsuranceCurrent 65,197us-gaap_AccruedInsuranceCurrent
Accrued interest 3,930us-gaap_InterestPayableCurrent 11,985us-gaap_InterestPayableCurrent
Accrued repurchase commitment 179,065dvly_AccruedRepurchaseCommitmentCurrent 152,510dvly_AccruedRepurchaseCommitmentCurrent
Other 190,385us-gaap_OtherAccruedLiabilitiesCurrent 172,067us-gaap_OtherAccruedLiabilitiesCurrent
Total Accrued Expenses $ 1,790,432us-gaap_AccruedLiabilitiesCurrent $ 1,514,010us-gaap_AccruedLiabilitiesCurrent