Significant Accounting Policies (Details) (USD $)	12 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2011	Mar. 31, 2010
Significant Accounting Policies [Line Items]
Cash in foreign bank accounts	$ 2,900,000
Cash in foreign bank accounts to be used for international expansion	900,000
Asset impairment charges - intangible assets, finite-lived	0	0	0
Total landlord incentives	2,400,000	1,900,000
Quarterly amortization of landlord incentives related to renovations	43,000
Quarterly amortization of landlord incentives related to free rent	13,000
Valuation allowance recorded against deferred tax assets	14,100,000	4,100,000
Deferred tax liabilities, net	610,000	31,000
Unrecognized tax benefits	1,080,000	1,003,000	1,275,000	958,000
Accrued tax penalties and interest related to unrecognized tax benefits	124,000	91,000
Customer Concentration Risk
Significant Accounting Policies [Line Items]
Number of customers providing 10% or more of total revenues	0		0
Other Assets
Significant Accounting Policies [Line Items]
Number of long term cost method investments	1	1
Long term cost method investment	500,000	500,000
HE
Significant Accounting Policies [Line Items]
Guaranteed minimum revenues	11,300,000	13,000,000	15,800,000
Advertising expense	1,700,000	1,700,000	1,700,000
Reimbursements received for direct and indirect advertising expenses	1,600,000	1,400,000	1,700,000
Unaccountable advertising reimbursements	1,500,000	1,300,000	1,600,000
HE | Customer Concentration Risk
Significant Accounting Policies [Line Items]
Major customer percent of total revenues		11.00%
Number of customers providing 10% or more of total revenues		1
HE | Accounts Receivable | Customer Concentration Risk
Significant Accounting Policies [Line Items]
Major customer/supplier, percent of total	14.00%	16.00%
Number of major customers with concentration risk	1	1
Furniture and fixtures
Significant Accounting Policies [Line Items]
Estimated useful lives	3 years
Equipment | Minimum
Significant Accounting Policies [Line Items]
Estimated useful lives	3 years
Equipment | Maximum
Significant Accounting Policies [Line Items]
Estimated useful lives	10 years
Capitalized software
Significant Accounting Policies [Line Items]
Asset impairment charges - internally developed software	0	0
Estimated useful lives	5 years
Capitalized software costs, net of accumulated amortization	7,800,000	6,800,000
Costs associated with software still in application development phase	1,900,000	1,500,000
Capitalized software | Entertainment Essentials
Significant Accounting Policies [Line Items]
Asset impairment charges - internally developed software			$ 8,000