Summary of Significant Accounting Policies - Additional Information (Details) (USD $) Share data in Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2015 employee facility	Mar. 31, 2014	Mar. 31, 2013
Summary of Significant Accounting Policies (Textual) [Abstract]
Number of warehousing facilities	10
Number of employee represented by labor union	90
Number of employee employed by the entity	1,250
Number of seasonal employees	1,450
Held-to-maturity short-term investments	$ 69,845,000	$ 29,862,000
LIFO inventory amount	279,000	465,000
Computer equipment under capital leases	0	0
Depreciation expense	6,027,000	5,917,000	5,948,000
Impairment of intangible assets	0	0	0
Impairment of long-lived assets	0	0	0
Interest expense	281,000	283,000	291,000
Interest income	274,000	92,000	342,000
Product development costs capitalized	4,321,000	3,778,000
Product development expense	7,172,000	5,716,000	6,785,000
Antidilutive securities excluded from computation of net income per share	138	151	182
Other Current Assets [Member]
Summary of Significant Accounting Policies (Textual) [Abstract]
Product development costs capitalized	3,938,000
Other Long-Term Assets [Member]
Summary of Significant Accounting Policies (Textual) [Abstract]
Product development costs capitalized	383,000
Foreign exchange contract [Member]
Summary of Significant Accounting Policies (Textual) [Abstract]
Realized gains and (losses)	183,000	123,000	(40,000)
Number of Open forward exchange contracts	0	0
Paper Magic Assets Group [Member]
Summary of Significant Accounting Policies (Textual) [Abstract]
Reduction of goodwill	2,711,000
Minimum [Member]
Summary of Significant Accounting Policies (Textual) [Abstract]
FIFO inventory amount	$ 838,000	$ 820,000
Minimum [Member] | Other Seasonal [Member]
Summary of Significant Accounting Policies (Textual) [Abstract]
Period for which production cost capitalized	18 months
Selling season in which production capitalized cost amortized	2 months
Minimum [Member] | All Occasion [Member]
Summary of Significant Accounting Policies (Textual) [Abstract]
Period for which production cost capitalized	6 months
Selling season in which production capitalized cost amortized	6 months
Maximum [Member] | Other Seasonal [Member]
Summary of Significant Accounting Policies (Textual) [Abstract]
Period for which production cost capitalized	20 months
Selling season in which production capitalized cost amortized	4 months
Maximum [Member] | All Occasion [Member]
Summary of Significant Accounting Policies (Textual) [Abstract]
Period for which production cost capitalized	9 months
Selling season in which production capitalized cost amortized	12 months