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Reconciliation Of Reported Segment Information From Segments To Consolidated Financial Statement Items (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2013 | Jun. 30, 2012 | Jun. 30, 2013 | Jun. 30, 2012 | Dec. 31, 2012
Other income (expenses) | $ 0 | $ (317) | $ 0 | $ (307) |
Interest expense | 0 | 8 | 0 | 11 |
Interest expense | 174 | 48 | 269 | 104 |
Total interest expense | 174 | 56 | 269 | 115 |
Depreciation and amortization | 119 | 8 | 240 | 11 |
Segment income (loss) | (1,281) | (701) | (2,281) | 49 |
Patent licensing revenue | 0 | 0 | 200 | 0 |
Income tax expense (recovery) | (500) | (287) | (853) | 26 |
Net income (loss) from continuing operations | (743) | (421) | (1,390) | (31) |
Segment assets | 58,060 | 56,020 | 58,060 | 56,020 | 61,310
Reportable Segments [Member] |  |  |  |  |
Other income (expenses) | 0 | (318) | 0 | (308) |
Interest expense | 174 | 48 | 269 | 104 |
Depreciation and amortization | 119 | 8 | 240 | 11 |
Segment income (loss) | (932) | (160) | (1,519) | 1,065 |
Segment assets | 25,126 | 20,472 | 25,126 | 20,472 |
Unallocated Amount to Segment [Member] |  |  |  |  |
Other income (expenses) | 0 | 1 | 0 | 1 |
Interest expense | 0 | 8 | 0 | 11 |
Depreciation and amortization | 0 | 0 | 0 | 0 |
Patent licensing revenue | 0 | 0 | 200 | 0 |
Other income (expense) and earnings (loss) of other equity accounted investments | 38 | (6) | 38 | (53) |
Other corporate expenses (primarily corporate level interest, general and administrative expenses) | (349) | (542) | (962) | (1,017) |
Segment assets | $ 32,934 | $ 35,548 | $ 32,934 | $ 35,548 |

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