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Long-Term Debt (Details) (USD $)
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3 Months Ended | 3 Months Ended | 3 Months Ended | ||||
|---|---|---|---|---|---|---|---|
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Jun. 30, 2012
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Mar. 31, 2012
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Jun. 30, 2011
Recoupable Advance [Member]
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Jun. 30, 2012
Recoupable Advance [Member]
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Jun. 30, 2012
Non-recoupable Advance [Member]
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Jun. 30, 2012
Replication Services Agreement Advance [Member]
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Jun. 30, 2011
Replication Services Agreement Advance [Member]
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| 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 | |||||