v2.4.0.8

Income Taxes (Details) - Deferred tax assets and liabilities (USD $) In Thousands, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012
--- | --- | ---
Deferred tax assets: |  |
Research and development credits | $ 1,824 | $ 1,707
Other credits | 378 | 347
Operating loss carry forwards | 12,592 | 10,562
Inventories | 338 | 469
Allowance for doubtful accounts | 118 | 563
Depreciation | 349 | 246
Deferred research and development expenses for income tax | 327 | 327
Non-cash compensation | 957 | 706
Other | 794 | 536
Total gross deferred tax assets | 17,677 | 15,463
Valuation allowance | (17,293) | (14,906)
Net deferred tax assets | 384 | 557
Deferred tax liabilities |  |
Other identifiable intangible assets | (1,070) | (1,354)
Total gross deferred tax liabilities | (1,070) | (1,354)
Net deferred tax liabilities | $ (686) | $ (797)

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