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Restructuring Charges (Tables) | 12 Months Ended
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Dec. 31, 2017
Restructuring Cost and Reserve [Line Items] |
Restructuring and Related Activities Disclosure [Text Block] | Restructuring Charges During 2017 and 2016, the Company did not initiate any restructuring programs. The 2015 Plan During 2015, the Company initiated a restructuring program to reduce overall corporate expenses which is expected to improve future profitability by reducing spending on sales, general and administrative programs and refining some of its research and development efforts ("the 2015 Plan"). In connection with this restructuring program, the Company initiated a plan of termination resulting in a reduction of 8% of the Company's headcount. The Company estimated that it would incur a cash payout related to the reduction in force of approximately $3.0 million, which is related to severance and termination benefits. The estimated non-cash expense was expected to be approximately $1.0 million. During the year ended December 31, 2015, the Company recorded a charge of $3.6 million related primarily to the reduction in workforce, of which $1.4 million was related to the MID reportable segment, $0.1 million was related to the RSD reportable segment, $1.2 million was related to the Other segment and $0.9 million was related to corporate support functions. The 2015 Plan was completed in 2016. The following table summarizes the 2015 Plan restructuring activities during the years ended December 31, 2016 and 2015:
|  | Employee Severance and Related Benefits |  | Facilities |  | Total
|  | (In thousands)
Balance at December 31, 2014 |  | $ | — |  |  | $ | — |  |  | $ | — |
Charges |  | 2,993 |  |  | 583 |  |  | 3,576 |
Payments |  | (1,765 | ) |  | — |  |  | (1,765 | )
Non-cash settlements |  | — |  |  | (583 | ) | * | (583 | )
Balance at December 31, 2015 |  | $ | 1,228 |  |  | $ | — |  |  | $ | 1,228 |
Payments |  | (1,228 | ) |  | — |  |  | (1,228 | )
Balance at December 31, 2016 |  | $ | — |  |  | $ | — |  |  | $ | — |
______________________________________ *The non-cash charge of $583 thousand was related to the write down of fixed assets related to the Other segment.
2015 Plan [Member] |
Restructuring Cost and Reserve [Line Items] |
Restructuring and Related Costs [Table Text Block] | The following table summarizes the 2015 Plan restructuring activities during the years ended December 31, 2016 and 2015:
|  | Employee Severance and Related Benefits |  | Facilities |  | Total
|  | (In thousands)
Balance at December 31, 2014 |  | $ | — |  |  | $ | — |  |  | $ | — |
Charges |  | 2,993 |  |  | 583 |  |  | 3,576 |
Payments |  | (1,765 | ) |  | — |  |  | (1,765 | )
Non-cash settlements |  | — |  |  | (583 | ) | * | (583 | )
Balance at December 31, 2015 |  | $ | 1,228 |  |  | $ | — |  |  | $ | 1,228 |
Payments |  | (1,228 | ) |  | — |  |  | (1,228 | )
Balance at December 31, 2016 |  | $ | — |  |  | $ | — |  |  | $ | — |
______________________________________ *The non-cash charge of $583 thousand was related to the write down of fixed assets related to the Other segment.

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- Definition The entire disclosure for restructuring and related activities. Description of restructuring activities such as exit and disposal activities, include facts and circumstances leading to the plan, the expected plan completion date, the major types of costs associated with the plan activities, total expected costs, the accrual balance at the end of the period, and the periods over which the remaining accrual will be settled. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -URI http://asc.fasb.org/topic&trid=2175745 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Tabular disclosure of costs incurred for restructuring including, but not limited to, exit and disposal activities, remediation, implementation, integration, asset impairment, and charges against earnings from the write-down of assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 5.P.3) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140864-122747 + Details
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