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Other Long-Term Liabilities (Details) (USD $) | 1 Months Ended | 3 Months Ended |
--- | --- | --- | ---
Jan. 31, 2013 | Jan. 31, 2012 | Jan. 31, 2011 | Mar. 31, 2013 | Mar. 31, 2012 | Dec. 31, 2012
Other Long-Term Liabilities |  |  |  |  |  |
Deferred Rent |  |  |  | $ 434,000 |  | $ 434,000
Net Deferred Tax Liability related to IPR&D |  |  |  | 4,661,000 |  | 4,661,000
Deferred Income from Sale of Tax Benefits |  |  |  | 1,630,000 |  | 1,118,000
Loan Payable |  |  |  | 457,000 |  | 472,000
Other |  |  |  | 43,000 |  | 39,000
Total |  |  |  | 7,225,000 |  | 6,724,000
Less Current Portion |  |  |  | (557,000) |  | (388,000)
Long-Term Portion |  |  |  | 6,668,000 |  | 6,336,000
Amount at which New Jersey tax benefit agreed to be sold | 800,000 | 800,000 | 600,000 | 200,000 | 100,000 |
Amount of sale of New Jersey tax benefit | $ 800,000 | $ 700,000 | $ 500,000 |  |  |
Period for which base of operations must be maintained |  |  |  | 5 years |  |

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- Definition The cumulative difference between the rental payments required by a lease agreement and the rental income or expense recognized on a straight-line basis, or other systematic and rational basis more representative of the time pattern in which use or benefit is granted or derived from the leased property, expected to be recognized in income or expense over the term of the leased property by the lessor or lessee, respectively. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 13 -Paragraph 19 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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-Publisher FASB -Name FASB Technical Bulletin (FTB) -Number 85-3 -Paragraph 2 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 25 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=7501430&loc=d3e39896-112707 + Details
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