Income Taxes (Details) (USD $)	12 Months Ended
	Mar. 31, 2013	Apr. 01, 2012	Mar. 27, 2011
Effective Income Tax Rate Reconciliation [Abstract]
Statutory federal rate (in hundredths)	35.00%	35.00%	34.40%
State taxes, net of federal benefit (in hundredths)	2.90%	2.60%	2.10%
Non-deductible expenses (in hundredths)	0.50%	0.50%	1.00%
Other (in hundredths)	0.20%	0.40%	(1.90%)
Effective rate (in hundredths)	38.60%	38.50%	35.60%
Components of Income Tax Expense (Benefit) [Abstract]
Federal: Current	$ 10,593,200	$ 8,598,000	$ 5,493,000
Deferred	(929,600)	612,500	(581,400)
State: Current	1,640,400	1,007,700	676,100
Deferred	(103,500)	55,800	(51,000)
Provision for income taxes	11,200,500	10,274,000	5,536,700
Deferred Tax Assets [Abstract]
Deferred compensation	1,448,900	1,571,700
Accrued vacation	435,400	416,600
Deferred rent	1,070,000	941,700
Allowance for doubtful accounts	448,800	312,800
Inventory reserves	1,254,000	1,126,200
Sales tax reserves	618,300	646,400
Other assets	951,900	546,100
Total deferred tax assets	6,227,300	5,561,500
Deferred Tax Liabilities [Abstract]
Depreciation and amortization	3,373,100	3,773,000
Accrued compensation	0	320,400
Prepaid expenses	429,100	422,500
Other liabilities	149,600	154,000
Total deferred tax liabilities	3,951,800	4,669,900
Gross amount of unrecognized tax benefits	631,100	561,600
Net of indirect tax benefits	416,500	370,600
Unrecognized tax benefits that would impact effective tax rate	725,500
Amount of interest and penalties	71,280	33,500	59,000
Unrecognized tax benefits liability	309,000	236,600	203,100
Reconciliation of unrecognized tax benefits [Rollforward]
Beginning balance of unrecognized tax benefit	561,600	453,800	696,000
Increases related to prior period tax positions	0	0	92,200
Increases related to current period tax positions	69,500	107,800	0
Reductions as a result of a lapse in the applicable statute of limitations	0	0	(334,400)
Ending balance of unrecognized tax benefits	$ 631,100	$ 561,600	$ 453,800