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License Agreements - Additional Information (Detail) (USD $) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2013 | Mar. 31, 2012 | Dec. 31, 2012
Licenses Agreements [Line Items] |  |  |
Royalty payments on products | $ 800,000 | $ 700,000 |
Payments made relating to the manufacturing of the products | 3,900,000 |  | 3,600,000
Inventory write down |  |  | 1,700,000
Current asset, warrant claim | 418,000 |  | 2,038,000
Reclassification from Inventory to prepaid expenses | 400,000 |  |
Reclassification from Inventory to accounts payable | 500,000 |  |
Product Warranty |  |  |
Licenses Agreements [Line Items] |  |  |
Current asset, warrant claim | 300,000 |  | 1,800,000
Royalty |  |  |
Licenses Agreements [Line Items] |  |  |
Royalties owed | 700,000 |  | 800,000
Royalty | Platelet system |  |  |
Licenses Agreements [Line Items] |  |  |
Royalty rate applied towards sale of products | 10.00% |  |
Royalty | Plasma system |  |  |
Licenses Agreements [Line Items] |  |  |
Royalty rate applied towards sale of products | 3.00% |  |
Royalty | Red blood cell system |  |  |
Licenses Agreements [Line Items] |  |  |
Royalty rate applied towards sale of products | 5.00% |  |
Royalty | Illuminators |  |  |
Licenses Agreements [Line Items] |  |  |
Royalty rate applied towards sale of products | 6.50% |  |
Manufacturing Costs |  |  |
Licenses Agreements [Line Items] |  |  |
Royalties owed | $ 3,900,000 |  | $ 6,200,000

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- Definition Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 15 -Subparagraph 5 -Article 9 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.15(5)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.15(a)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 15 -Subparagraph a -Article 7 + Details
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- Definition Charge to cost of goods sold that represents the reduction of the carrying amount of inventory, generally attributable to obsolescence or market conditions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Concepts (CON) -Number 6 -Paragraph 86 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 43 -Section 7 -Paragraph 14 -Chapter 4 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.2) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 330 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6386783&loc=d3e4542-108314 + Details
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