Long-Term Debt (Details) (USD $)	3 Months Ended		3 Months Ended			3 Months Ended
	Jun. 30, 2012	Mar. 31, 2012	Jun. 30, 2011 Recoupable Advance [Member]	Jun. 30, 2012 Recoupable Advance [Member]	Jun. 30, 2012 Non-recoupable Advance [Member]	Jun. 30, 2012 Replication Services Agreement Advance [Member]	Jun. 30, 2011 Replication Services Agreement Advance [Member]
Debt Instrument [Line Items]
Term of contract	3 years
Debt Instrument, Face Amount				$ 2,500,000	$ 750,000	$ 2,000,000
Debt Instrument, Payment Terms	to be repaid at $0.15 per disc manufactured until the advance is repaid						to be repaid at $0.10 per IMHE disc manufactured until the advance is repaid
Debt Instrument, Unamortized Discount				218,000		174,000
Imputed interest rate (in hundredths)			5.50%			5.50%
Amortization of Debt Discount			32,000			14,000	20,000
Amortization of deferred charges			58,000
Subordinated manufacturing advance obligation, less debt discount of $28-June 30, 2012; $42-March 31, 2012	906,000	1,013,000
Current portion of long-term debt, less debt discount of $28-June 30, 2012; $40-March 31, 2012	720,000	664,000
Long-term debt, less current portion, less debt discount	186,000	349,000
Debt repayment						121,000	161,000
Long-term Debt, Gross						$ 934,000	$ 1,100,000