Recent Accounting Developments (Policies)	3 Months Ended
Mar. 31, 2018
Accounting Policies [Abstract]
Recent Accounting Developments	In May 2014, the FASB issued guidance on the recognition of revenue from contracts with customers, Topic 606. Revenue recognition depicts the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The guidance also requires disclosures regarding the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with customers. We performed a review of the requirements of the new guidance and have identified which of our revenue streams will be within the scope of ASU 2014-09. We applied the five-step model of the new standard to a selection of contracts within each of our revenue streams, and compared the results to our current accounting practices. We also performed detailed contract reviews to complete necessary adjustments to our existing accounting policies, and implemented changes to our processes and internal controls to capture new data and address changes in financial reporting. We expanded our consolidated financial statement disclosures to comply with the requirements of Topic 606. We adopted the new standard using the modified retrospective method, with the cumulative effect of initially applying the guidance recognized at the date of initial application. Our adoption of Topic 606 on January 1, 2018 resulted in a $218,000 decrease in retained earnings to record the cumulative effect adjustment. Adoption of Topic 606 in the three months ended March 31, 2018 increased our revenues by less than $30,000 and decreased our net loss by less than $20,000, compared to revenue recognition under Topic 605. In January 2016, the FASB issued ASU No. 2016-01, Recognition and Measurement of Financial Assets and Liabilities, which revised the accounting related to (1) the classification and measurement of investments in equity securities and (2) the presentation of certain fair value changes for financial liabilities measured at fair value. The ASU also amended certain disclosure requirements associated with the fair value of financial instruments. The new guidance requires the fair value measurement of investments in equity securities and other ownership interests in an entity that do not result in consolidation and are not accounted for under the equity method. Entities will need to measure these investments and recognize changes in fair value in net income. Entities will no longer be able to recognize unrealized holding gains and losses on equity securities they classify under current guidance as available-for-sale in other comprehensive income. This standard is effective beginning January 1, 2018 via a cumulative-effect adjustment to beginning retained earnings, except for guidance relative to equity securities without readily determinable fair values which is applied prospectively. Our adoption of ASU 2016-01 on January 1, 2018 resulted in a $44,000 increase in retained earnings and accumulated other comprehensive loss. In February 2016, the FASB issued new lease accounting guidance (ASU No. 2016-02, Leases). Under the new guidance, at the commencement date, lessees will be required (a) to recognize a lease liability, which is a lessee's obligation to make lease payments arising from a lease, measured on a discounted basis, and (b) to record a right-of-use asset, which is an asset that represents the lessee’s right to use, or control the use of, a specified asset for the lease term. The new guidance is not applicable for leases with a term of 12 months or less. Lessor accounting is largely unchanged. U.S. public companies are required to apply the amendments in ASU 2016-02 for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. Early application is permitted. Lessees (for capital and operating leases) and lessors (for sales-type, direct financing, and operating leases) must apply a modified retrospective transition approach for leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements. The modified retrospective approach would not require any transition accounting for leases that expired before the earliest comparative period presented. Lessees and lessors may not apply a full retrospective transition approach. We are currently evaluating the impact of the new guidance on our consolidated financial statements. We are monitoring the FASB's recent deliberations surrounding a simplified transition approach and are evaluating the practical expedients provided by that approach as well as those already included in the standard. When implemented, the standard is expected to have a material impact as operating leases will be recognized on our consolidated balance sheet. The impact on our results of operations is being evaluated. The impact of this ASU is non-cash in nature and will not affect our cash flows. In January 2017, the Financial Accounting Standards Board (FASB) issued guidance on simplifying the test for goodwill impairment (ASU No. 2017-04, Simplifying the Test for Goodwill Impairment). Under the new standard, goodwill impairment would be measured as the amount by which a reporting unit's carrying value exceeds its fair value, but not in an amount in excess of the carrying value of goodwill. The new guidance eliminates the requirement to determine goodwill impairment by calculating the implied fair value of goodwill by hypothetically assigning the fair value of a reporting unit to all of its assets and liabilities as if that reporting unit had been acquired in a business combination. The new guidance is to be applied prospectively to impairment tests beginning January 1, 2020, with early adoption permitted. We are currently evaluating when we will adopt the new guidance. In February 2018, the FASB issued ASU 2018-02, Reclassification of Tax Effects from Accumulated Other Comprehensive Income, which allows entities to elect an option to reclassify the stranded tax effects related to the application of the Tax Cuts and Jobs Act from accumulated other comprehensive loss to retained earnings. The guidance is effective January 1, 2019 with early adoption permitted, and can be applied either in the period of adoption or retrospectively to all applicable periods. We are currently evaluating the impact of the new guidance on our consolidated financial statements.

Recent Accounting Developments (Policies)

3 Months Ended

Mar. 31, 2018

In May 2014, the FASB issued guidance on the recognition of revenue from contracts with customers, Topic 606. Revenue recognition depicts the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The guidance also requires disclosures regarding the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with customers. We performed a review of the requirements of the new guidance and have identified which of our revenue streams will be within the scope of ASU 2014-09. We applied the five-step model of the new standard to a selection of contracts within each of our revenue streams, and compared the results to our current accounting practices. We also performed detailed contract reviews to complete necessary adjustments to our existing accounting policies, and implemented changes to our processes and internal controls to capture new data and address changes in financial reporting. We expanded our consolidated financial statement disclosures to comply with the requirements of Topic 606. We adopted the new standard using the modified retrospective method, with the cumulative effect of initially applying the guidance recognized at the date of initial application. Our adoption of Topic 606 on January 1, 2018 resulted in a $218,000 decrease in retained earnings to record the cumulative effect adjustment. Adoption of Topic 606 in the three months ended March 31, 2018 increased our revenues by less than $30,000 and decreased our net loss by less than $20,000, compared to revenue recognition under Topic 605.

In January 2016, the FASB issued ASU No. 2016-01, Recognition and Measurement of Financial Assets and Liabilities, which revised the accounting related to (1) the classification and measurement of investments in equity securities and (2) the presentation of certain fair value changes for financial liabilities measured at fair value. The ASU also amended certain disclosure requirements associated with the fair value of financial instruments. The new guidance requires the fair value measurement of investments in equity securities and other ownership interests in an entity that do not result in consolidation and are not accounted for under the equity method. Entities will need to measure these investments and recognize changes in fair value in net income. Entities will no longer be able to recognize unrealized holding gains and losses on equity securities they classify under current guidance as available-for-sale in other comprehensive income. This standard is effective beginning January 1, 2018 via a cumulative-effect adjustment to beginning retained earnings, except for guidance relative to equity securities without readily determinable fair values which is applied prospectively. Our adoption of ASU 2016-01 on January 1, 2018 resulted in a $44,000 increase in retained earnings and accumulated other comprehensive loss.

In February 2016, the FASB issued new lease accounting guidance (ASU No. 2016-02, Leases). Under the new guidance, at the commencement date, lessees will be required (a) to recognize a lease liability, which is a lessee's obligation to make lease payments arising from a lease, measured on a discounted basis, and (b) to record a right-of-use asset, which is an asset that represents the lessee’s right to use, or control the use of, a specified asset for the lease term. The new guidance is not applicable for leases with a term of 12 months or less. Lessor accounting is largely unchanged. U.S. public companies are required to apply the amendments in ASU 2016-02 for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. Early application is permitted. Lessees (for capital and operating leases) and lessors (for sales-type, direct financing, and operating leases) must apply a modified retrospective transition approach for leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements. The modified retrospective approach would not require any transition accounting for leases that expired before the earliest comparative period presented. Lessees and lessors may not apply a full retrospective transition approach. We are currently evaluating the impact of the new guidance on our consolidated financial statements. We are monitoring the FASB's recent deliberations surrounding a simplified transition approach and are evaluating the practical expedients provided by that approach as well as those already included in the standard. When implemented, the standard is expected to have a material impact as operating leases will be recognized on our consolidated balance sheet. The impact on our results of operations is being evaluated. The impact of this ASU is non-cash in nature and will not affect our cash flows.

In January 2017, the Financial Accounting Standards Board (FASB) issued guidance on simplifying the test for goodwill impairment (ASU No. 2017-04, Simplifying the Test for Goodwill Impairment). Under the new standard, goodwill impairment would be measured as the amount by which a reporting unit's carrying value exceeds its fair value, but not in an amount in excess of the carrying value of goodwill. The new guidance eliminates the requirement to determine goodwill impairment by calculating the implied fair value of goodwill by hypothetically assigning the fair value of a reporting unit to all of its assets and liabilities as if that reporting unit had been acquired in a business combination. The new guidance is to be applied prospectively to impairment tests beginning January 1, 2020, with early adoption permitted. We are currently evaluating when we will adopt the new guidance.

In February 2018, the FASB issued ASU 2018-02, Reclassification of Tax Effects from Accumulated Other Comprehensive Income, which allows entities to elect an option to reclassify the stranded tax effects related to the application of the Tax Cuts and Jobs Act from accumulated other comprehensive loss to retained earnings. The guidance is effective January 1, 2019 with early adoption permitted, and can be applied either in the period of adoption or retrospectively to all applicable periods. We are currently evaluating the impact of the new guidance on our consolidated financial statements.