Investments in Other Equity Securities	12 Months Ended
Dec. 31, 2017
Investments, All Other Investments [Abstract]
Cost-method Investments	INVESTMENTS IN OTHER EQUITY SECURITIES Vislink In 2014, the Company acquired a 3.3% interest in Vislink plc (“Vislink”), a U.K. public company listed on the AIM exchange, for $3.3 million. The investment in Vislink is being accounted for as a cost method investment as the Company does not have significant influence over the operational and financial policies of Vislink. Since the Vislink investment is also an available-for-sale security, its value is marked to market for the difference in fair value at period end. The accumulated unrealized gain (loss) arising from the change in Vislink’s fair value for each reporting period is included in the Consolidated Balance Sheet as a component of “Accumulated other comprehensive loss (AOCI)”. Since mid-2016, Vislink’s stock price has traded below its cost basis since mid-2016. The Company assessed this available-for-sale investment on an individual basis to determine if the decline in fair value was other than temporary. The assessment as to the nature of a decline in fair value is based on, among other things, the length of time and the extent to which the market value has been less than the Company’s cost basis; the financial condition and near-term prospects of the investment; and the Company’s intent and ability to retain the investment for a period of time sufficient to allow for any anticipated recovery in market value. As a result of these assessments, impairment charges of $1.5 million and $1.2 million were recognized in the first and third quarter of 2016, respectively, reflecting new reduced cost basis at September 30, 2016. In the fourth quarter of 2016, Vislink’s stock price recovered 67% from September 30, 2016, and the carrying value as of December 31, 2016 was $0.8 million. Vislinks accumulated unrealized gain recorded in AOIC was $0.3 million at December 31, 2016. On February 3, 2017, Vislink (from thereon, referred to as Pebble Beach Systems) completed the disposal of its hardware division and changed its name to Pebble Beach Systems. On February 6, 2017, Pebble Beach Systems announced its financial results for fiscal 2016 which showed a significant increase in operating losses and at the same time Pebble Beach Systems announced the consideration to sell the company. Since February 2017, Pebble Beach Systems’ stock price began to decline to below the Company’s reduced cost basis. In view of Pebble Beach Systems’ potential sale opportunity, the Company determined that the decline in the fair value of Pebble Beach Systems’ investment in the first nine months of 2017 was not considered permanent yet. However, in the fourth quarter of 2017, Pebble Beach announced that it had withdrawn from the sale process due to a lack of viable offers and that it would work on refinancing their debts and revising the bank covenants to improve its liquidity. Based on Pebble Beach Systems’ fourth quarter announcement, without the sale opportunity and its highly leveraged financial conditions, the Company believes that it is more-likely-than-not that Pebble Beach Systems’ investment is recoverable. As a result, during the fourth quarter of 2017, the Company wrote off the remaining carrying value and released all the balances in the AOCI to earnings, resulting in an impairment charge of $0.5 million in the fourth quarter of 2017. Unconsolidated Variable Interest Entities (“VIE”) From time to time, the Company may enter into investments in entities that are considered variable interest entities under Accounting Standards Codification (ASC) Topic 810. If the Company is the primary beneficiary of a variable interest entity (“VIE”), it is required to consolidate it. To determine if the Company is the primary beneficiary of a VIE, the Company evaluates whether it has (1) the power to direct the activities that most significantly impact the VIE’s economic performance, and (2) the obligation to absorb losses or the right to receive benefits from the VIE that could potentially be significant to the VIE. The assessment of whether the Company is the primary beneficiary of its VIE requires significant assumptions and judgments. EDC In 2014, the Company acquired an 18.4% interest in Encoding.com, Inc. (“EDC”), a video transcoding service company headquartered in San Francisco, California, for $3.5 million by purchasing EDC’s Series B preferred stock. EDC is considered a VIE but the Company determined that it is not the primary beneficiary of EDC. As a result, EDC is accounted for as a cost method investment. The Company determined that there were no indicators existing at December 31, 2017 that would indicate that the EDC investment was impaired. The Company’s maximum exposure to loss from the EDC’s investment at December 31, 2017 was limited to its investment cost of $3.6 million, including $0.1 million of transaction costs. VJU In 2014, the Company acquired a 19.8% interest in VJU ITV Development GmbH (“VJU”), a software company based in Austria, for $2.5 million. In March 2015, at the VJU board meeting, the Company was made aware of significant decreases in VJU’s business prospects, VJU’s existing working capital and prospects for additional funding. Based on the Company’s assessment, of VJU’s expected cash flows, the entire investment is expected to be non-recoverable. As a result, the Company recorded an impairment charge of $2.5 million in the first quarter of 2015. The VJU investment was sold for $6,000 in the fourth quarter of 2017.

INVESTMENTS IN OTHER EQUITY SECURITIES

Vislink

In 2014, the Company acquired a 3.3% interest in Vislink plc (“Vislink”), a U.K. public company listed on the AIM exchange, for $3.3 million. The investment in Vislink is being accounted for as a cost method investment as the Company does not have significant influence over the operational and financial policies of Vislink. Since the Vislink investment is also an available-for-sale security, its value is marked to market for the difference in fair value at period end. The accumulated unrealized gain (loss) arising from the change in Vislink’s fair value for each reporting period is included in the Consolidated Balance Sheet as a component of “Accumulated other comprehensive loss (AOCI)”.

Since mid-2016, Vislink’s stock price has traded below its cost basis since mid-2016. The Company assessed this available-for-sale investment on an individual basis to determine if the decline in fair value was other than temporary. The assessment as to the nature of a decline in fair value is based on, among other things, the length of time and the extent to which the market value has been less than the Company’s cost basis; the financial condition and near-term prospects of the investment; and the Company’s intent and ability to retain the investment for a period of time sufficient to allow for any anticipated recovery in market value. As a result of these assessments, impairment charges of $1.5 million and $1.2 million were recognized in the first and third quarter of 2016, respectively, reflecting new reduced cost basis at September 30, 2016. In the fourth quarter of 2016, Vislink’s stock price recovered 67% from September 30, 2016, and the carrying value as of December 31, 2016 was $0.8 million. Vislinks accumulated unrealized gain recorded in AOIC was $0.3 million at December 31, 2016.

On February 3, 2017, Vislink (from thereon, referred to as Pebble Beach Systems) completed the disposal of its hardware division and changed its name to Pebble Beach Systems. On February 6, 2017, Pebble Beach Systems announced its financial results for fiscal 2016 which showed a significant increase in operating losses and at the same time Pebble Beach Systems announced the consideration to sell the company. Since February 2017, Pebble Beach Systems’ stock price began to decline to below the Company’s reduced cost basis. In view of Pebble Beach Systems’ potential sale opportunity, the Company determined that the decline in the fair value of Pebble Beach Systems’ investment in the first nine months of 2017 was not considered permanent yet. However, in the fourth quarter of 2017, Pebble Beach announced that it had withdrawn from the sale process due to a lack of viable offers and that it would work on refinancing their debts and revising the bank covenants to improve its liquidity. Based on Pebble Beach Systems’ fourth quarter announcement, without the sale opportunity and its highly leveraged financial conditions, the Company believes that it is more-likely-than-not that Pebble Beach Systems’ investment is recoverable. As a result, during the fourth quarter of 2017, the Company wrote off the remaining carrying value and released all the balances in the AOCI to earnings, resulting in an impairment charge of $0.5 million in the fourth quarter of 2017.

Unconsolidated Variable Interest Entities (“VIE”)

From time to time, the Company may enter into investments in entities that are considered variable interest entities under Accounting Standards Codification (ASC) Topic 810. If the Company is the primary beneficiary of a variable interest entity (“VIE”), it is required to consolidate it. To determine if the Company is the primary beneficiary of a VIE, the Company evaluates whether it has (1) the power to direct the activities that most significantly impact the VIE’s economic performance, and (2) the obligation to absorb losses or the right to receive benefits from the VIE that could potentially be significant to the VIE. The assessment of whether the Company is the primary beneficiary of its VIE requires significant assumptions and judgments.

EDC

In 2014, the Company acquired an 18.4% interest in Encoding.com, Inc. (“EDC”), a video transcoding service company headquartered in San Francisco, California, for $3.5 million by purchasing EDC’s Series B preferred stock. EDC is considered a VIE but the Company determined that it is not the primary beneficiary of EDC. As a result, EDC is accounted for as a cost method investment.

The Company determined that there were no indicators existing at December 31, 2017 that would indicate that the EDC investment was impaired. The Company’s maximum exposure to loss from the EDC’s investment at December 31, 2017 was limited to its investment cost of $3.6 million, including $0.1 million of transaction costs.

VJU

In 2014, the Company acquired a 19.8% interest in VJU ITV Development GmbH (“VJU”), a software company based in Austria, for $2.5 million. In March 2015, at the VJU board meeting, the Company was made aware of significant decreases in VJU’s business prospects, VJU’s existing working capital and prospects for additional funding. Based on the Company’s assessment, of VJU’s expected cash flows, the entire investment is expected to be non-recoverable. As a result, the Company recorded an impairment charge of $2.5 million in the first quarter of 2015. The VJU investment was sold for $6,000 in the fourth quarter of 2017.