Segment Information (Narrative) (Details)	3 Months Ended		6 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Revenue, Major Customer and Geographic Information
Entity Wide Revenue By Major Customer Percent Of Revenue Did Not Exceed Ten Percent			10.00%
Sales Revenue, Goods, Net [Member] | Customer Concentration Risk [Member] | GameStop Corp
Revenue, Major Customer and Geographic Information
Entity Wide Revenue By Major Customer Percent Of Revenue	16.00%	17.00%	12.00%	15.00%
Switzerland [Member]
Revenue, Major Customer and Geographic Information
Disclosure on Geographic Areas, Revenue from External Customers Attributed to Foreign Countries	136	92	539	365
Disclosure on Geographic Areas, Revenue from External Customers Attributed to Foreign Countries, Percentage	20.00%	13.00%	33.00%	22.00%
United States [Member]
Revenue, Major Customer and Geographic Information
Disclosure on Geographic Areas, Revenue from External Customers Attributed to Entity's Country of Domicile			99.00%