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Discontinued Operations Discontinued Operations - Schedule of Discontinued Operations (Details) - USD ($) |  | 12 Months Ended
--- | --- | ---
Jul. 06, 2015 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Net income (loss) from discontinued operations |  | $ (255,000) | $ 79,410,000 | $ 10,644,000
Stock-based compensation expense |  | 0 | 1,533,000 | 1,099,000
Capital expenditures |  | 0 | 482,000 | 631,000
Sisd [Member] | Discontinued Operations, Disposed of by Sale [Member] |  |  |  |
Revenue |  | 0 | 23,248,000 | 59,821,000
Cost of revenue |  | 0 | (11,291,000) | (26,953,000)
Research, development, and engineering expenses |  | 0 | (2,126,000) | (4,089,000)
Selling, general, and administrative expenses |  | 0 | (7,800,000) | (12,968,000)
Foreign currency loss |  | 0 | (177,000) | (170,000)
Operating income from discontinued business |  | 0 | 1,854,000 | 15,641,000
Gain (loss) on sale of discontinued business | $ 125,357,000 | (404,000) | 125,357,000 | 0
Income from discontinued operations before income tax expense |  | (404,000) | 127,211,000 | 15,641,000
Income tax expense (benefit) on discontinued operations | $ 47,175,000 | (149,000) | 47,801,000 | 4,997,000
Net income (loss) from discontinued operations |  | (255,000) | 79,410,000 | 10,644,000
Stock-based compensation expense |  | 0 | 1,533,000 | 1,099,000
Depreciation expense |  | 0 | 401,000 | 777,000
Amortization expense |  | 0 | 165,000 | 364,000
Capital expenditures |  | $ 0 | $ 482,000 | $ 631,000

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- Definition Amount of capital expenditure attributable to discontinued operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 5B -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721673-107760 + Details
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- Definition Amount of tax expense (benefit) related to a discontinued operation. Includes, but is not limited to, tax expense (benefit) related to income (loss) from operations during the phase-out period, tax expense (benefit) related to gain (loss) on disposal, tax expense (benefit) related to gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and tax expense (benefit) related to adjustments of a prior period gain (loss) on disposal. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32672-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 3B -URI http://asc.fasb.org/extlink&oid=65878427&loc=SL51721525-107759 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 3A -URI http://asc.fasb.org/extlink&oid=65878427&loc=SL51721523-107759 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=64827811&loc=d3e1361-107760 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 5B -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721673-107760 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 20 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=65896914&loc=d3e38679-109324 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 5C -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721675-107760 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=65878427&loc=d3e1012-107759 + Details
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