Basis of Presentation (Product Returns) Narrative) (Details) (USD $)	Mar. 31, 2013	Mar. 31, 2012
Basis Of Presentation Product Returns Narrative Details
Allowance for product returns	$ 145,000	$ 0

Current regulatory liabilities generally represent obligations to make refunds to customers for various reasons including overpayment.

No definition available.

Name:	us-gaap_CustomerRefundLiabilityCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant