Stock-Based Compensation (Details) (USD $)		1 Months Ended		12 Months Ended							1 Months Ended		12 Months Ended						12 Months Ended
	Mar. 31, 2013	May 31, 2013 Performance Stock Units [Member]	Apr. 30, 2012 Performance Stock Units [Member]	Mar. 31, 2013 Performance Stock Units [Member]	Apr. 01, 2012 Performance Stock Units [Member]	Mar. 27, 2011 Performance Stock Units [Member]	Mar. 31, 2013 Stock Options [Member]	Apr. 01, 2012 Stock Options [Member]	Mar. 27, 2011 Stock Options [Member]	Mar. 31, 2013 Restricted Stock [Member]	May 31, 2013 Restricted Stock [Member] Non-Employee Director [Member]	May 31, 2012 Restricted Stock [Member] Non-Employee Director [Member]	Mar. 31, 2013 Restricted Stock [Member] Non-Employee Director [Member]	Apr. 01, 2012 Restricted Stock [Member] Non-Employee Director [Member]	Apr. 01, 2012 Second Amended and Restated 1994 Stock and Incentive Plan [Member]	May 14, 2013 Second Amended and Restated 1994 Stock and Incentive Plan [Member]	Mar. 31, 2013 Second Amended and Restated 1994 Stock and Incentive Plan [Member]	Jul. 21, 2011 Second Amended and Restated 1994 Stock and Incentive Plan [Member]	Mar. 31, 2013 Second Amended and Restated 1994 Stock and Incentive Plan [Member] Performance Stock Units [Member]	Mar. 31, 2013 Second Amended and Restated 1994 Stock and Incentive Plan [Member] Restricted Stock [Member]	Mar. 31, 2013 Second Amended and Restated 1994 Stock and Incentive Plan [Member] Restricted Stock [Member] Chief Executive Officer [Member]	Apr. 01, 2012 Second Amended and Restated 1994 Stock and Incentive Plan [Member] Restricted Stock [Member] Chief Executive Officer [Member]	Apr. 01, 2007 Second Amended and Restated 1994 Stock and Incentive Plan [Member] Restricted Stock [Member] Chief Executive Officer [Member]	Mar. 31, 2013 Team Member Stock Purchase Plan [Member]	Apr. 01, 2012 Team Member Stock Purchase Plan [Member]	Mar. 27, 2011 Team Member Stock Purchase Plan [Member]	Mar. 26, 2000 Team Member Stock Purchase Plan [Member]	Mar. 31, 2013 Selling, General and Administrative Expenses [Member] Performance Stock Units [Member]	Apr. 01, 2012 Selling, General and Administrative Expenses [Member] Performance Stock Units [Member]	Mar. 27, 2011 Selling, General and Administrative Expenses [Member] Performance Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-cash stock-based compensation																								$ 59,400	$ 47,800	$ 51,200		$ 2,536,800	$ 2,928,200	$ 2,274,000
Income tax benefit from share-based compensation				979,800	1,127,400	809,500
Number of shares authorized (in shares)																											450,000
Purchase price of common stock (in hundredths)																											85.00%
Number of additional shares authorized (in shares)															690,000				109,000	15,000
Number of shares available for grant before amendment																		2,638,125
Number of shares available for grant (in shares)																447,430	536,303	3,553,125
Measurement period																			1 year
Unrecognized compensation costs				2,500,000			0			500,000			200,000
Unrecognized compensation cost related to new grant													300,000
Unrecognized compensation costs, period for recognition				2 years 8 months 12 days						3 years		3 years	2 years
Total fair value of shares vested during period				6,304,300	2,191,500	3,639,100
Annual vesting percentage (in hundredths)				25.00%								25.00%	25.00%	25.00%
Minimum calculated estimated forfeiture rate (in hundredths)	1.00%
Nonvested PSU shares, Outstanding [Roll Forward]
Outstanding, non-vested beginning of period (in shares)			604,844	604,844	696,089	679,627
Granted (in shares)				156,200	260,000	274,500
Vested (in shares)				(288,765)	(201,546)	(238,163)															(22,500)	(22,500)
Forfeited/cancelled (in shares)		(35,127)	(2,800)	(16,300)	(149,699)	(19,875)													(13,500)
Outstanding, non-vested end of period (in shares)				455,979	604,844	696,089				67,500
Nonvested PSU shares, Weighted-Average Grant Date Fair Value [Roll Forward]
Outstanding, non-vested beginning of period (in dollars per share)			$ 9.81	$ 9.81	$ 10.15	$ 6.75
Granted (in dollars per share)				$ 19.31	$ 10.97	$ 16.00
Vested (in dollars per share)				$ 8.64	$ 8.20	$ 7.24
Forfeited/cancelled (in dollars per share)				$ 17.69	$ 15.55	$ 9.42
Outstanding, non-vested end of period (in dollars per share)				$ 12.77	$ 9.81	$ 10.15
Nonvested PSU shares, Expected to Vest - Fiscal Year Maturity [Abstract]
2013 (in shares)				198,130
2014 (in shares)				112,401
2015 (in shares)				83,451
2016 (in shares)				26,870
Total shares earned but not yet vested (in shares)				420,852
Option granted (in shares)							0	0	0
Option exercised (in shares)							0
Total intrinsic value, options exercised								$ 2,087,800	$ 299,300
Shares of common stock granted (in shares)											15,000		20,100	36,000									225,000
Vesting period																							10 years
Weighted-average grant date fair value (in dollars per share)																							$ 10.56
Share released and vested (in shares)				288,765	201,546	238,163															22,500	22,500
Shares sold to employees (in shares)																								11,009	12,503	16,662
Weighted-average market value (in dollars per share)																								$ 15.80	$ 11.18	$ 8.95