Sale of Investment in Software Company	12 Months Ended
Dec. 31, 2019
Investment in Software Company [Abstract]
Investment in Software Company	Sale of Investment in Software Company As of December 31, 2017, the Company held an investment reported in other assets, non-current, totaling $3.1 million in convertible preferred stock of BriefCam, Ltd. ("BriefCam"), a privately-held Israeli company. During 2018, Canon Inc. (“Canon”) acquired all of the outstanding shares of BriefCam and the Company received $9.7 million from the closing proceeds for its shares of BriefCam, as well as received $100,000 following the satisfaction of a contingency, resulting in a gain on sale of $6.6 million during the year ended December 31, 2018. Additionally, during the year ended December 31, 2019, the Company recognized a gain of $41,000 related to the release of cash from escrow in connection with the sale. Prior to its sale, the investment did not have a readily determinable fair value and was recorded at cost, less impairment, if any, plus or minus changes resulting from observable price changes in market-based transactions for an identical or similar investment of the same issuer and is included in other non-current assets. The Company's ownership interest was less than 20%. From the date of the Company's adoption of ASU 2016-01, Financial Instruments – Overall, on January 1, 2018 to the sale of BriefCam, there were no observable price changes or impairments related to the Company’s non-marketable investment in the equity security. The gain on sale was taxable in the U.S. and was offset for federal income tax purposes by current or prior-year tax losses but was subject to applicable state income taxes. The gain on sale was not taxable in Israel.

Sale of Investment in Software Company

As of December 31, 2017, the Company held an investment reported in other assets, non-current, totaling $3.1 million in convertible preferred stock of BriefCam, Ltd. ("BriefCam"), a privately-held Israeli company. During 2018, Canon Inc. (“Canon”) acquired all of the outstanding shares of BriefCam and the Company received $9.7 million from the closing proceeds for its shares of BriefCam, as well as received $100,000 following the satisfaction of a contingency, resulting in a gain on sale of $6.6 million during the year ended December 31, 2018. Additionally, during the year ended December 31, 2019, the Company recognized a gain of $41,000 related to the release of cash from escrow in connection with the sale.

Prior to its sale, the investment did not have a readily determinable fair value and was recorded at cost, less impairment, if any, plus or minus changes resulting from observable price changes in market-based transactions for an identical or similar investment of the same issuer and is included in other non-current assets. The Company's ownership interest was less than 20%. From the date of the Company's adoption of ASU 2016-01, Financial Instruments – Overall, on January 1, 2018 to the sale of BriefCam, there were no observable price changes or impairments related to the Company’s non-marketable investment in the equity security. The gain on sale was taxable in the U.S. and was offset for federal income tax purposes by current or prior-year tax losses but was subject to applicable state income taxes. The gain on sale was not taxable in Israel.