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Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2012
Income Tax Expense (Benefit) [Abstract] |
Schedule of Tax Effects of Temporary Differences that Give Rise to Significant Portions of Deferred Tax Assets and Liabilities | Deferred tax assets are summarized as follows:
|  |  | December 31,
|  |  | 2012 |  |  | 2011
Deferred tax assets, current |  |  |  |  |  |
Reserves |  | $ | 3,804,000 |  | $ | 4,395,000
Other |  |  | 710,000 |  |  | 806,000
Total gross deferred tax assets, current |  |  | 4,514,000 |  |  | 5,201,000
Deferred tax assets, noncurrent |  |  |  |  |  |
Net operating loss carryforwards |  |  | 104,893,000 |  |  | 97,156,000
R&D credit carryforwards |  |  | 6,032,000 |  |  | 5,754,000
Depreciation/amortization deferred |  |  | 26,594,000 |  |  | 26,510,000
Other |  |  | 7,573,000 |  |  | 6,958,000
Total gross deferred tax assets, noncurrent |  |  | 145, 092,000 |  |  | 136,378,000
Net deferred taxes before valuation allowance |  |  | 149,606,000 |  |  | 141,579,000
Less: Valuation allowance |  |  | (149,606,000) |  |  | (141,579,000)
Deferred tax assets |  | $ | - |  | $ | -

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- Definition Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Topic 740 -SubTopic 10 -Publisher FASB -Number -Article -Subparagraph -Name Accounting Standards Codification -Paragraph 2 -Section 50 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 + Details
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