Summary of Significant Accounting Policies	12 Months Ended
Dec. 31, 2017
Accounting Policies [Abstract]
Significant Accounting Policies [Text Block]	Recently Issued Accounting Standards In May 2014, the Financial Accounting Standards Board (the “FASB”) issued Accounting Standards Board Update No. 2014-09: Revenue from Contracts with Customers (Topic 606) (“ASU 2014-09”). ASU 2014-09 supersedes the existing revenue recognition guidance and most industry-specific guidance applicable to revenue recognition. According to the new guidance, an entity will apply a principles-based five step model to recognize revenue upon the transfer of promised goods or services to customers and in an amount that reflects the consideration for which the entity expects to be entitled in exchange for those goods or services. Additionally, in March 2016, the FASB issued Accounting Standards Board Update No. 2016-08, Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net), which clarifies the implementation guidance on principal versus agent considerations. In April 2016, the FASB issued Accounting Standards Board Update No. 2016-10, Revenue from Contracts with Customers (Topic 606): Identifying Performance Obligations and Licensing, which clarifies the identification of performance obligations and the licensing implementation guidance. In May 2016, the FASB issued Accounting Standards Board Update No. 2016-12, Revenue from Contracts with Customers (Topic 606): Narrow-Scope Improvements and Practical Expedients, which provides clarifying guidance in certain narrow areas and adds some practical expedients. In December 2016, the FASB issued Accounting Standards Board Update No. 2016-20, Technical Corrections and Improvements to Topic 606: Revenue from Contracts with Customers, which facilitates 13 technical corrections and improvements to Topic 606 and other Topics amended by ASU 2014-09 to increase stakeholders’ awareness of the proposals and to expedite improvements to ASU 2014-09. In September 2017, the FASB issued Accounting Standards Board Update No. 2017-13: Revenue Recognition (Topic 605), Revenue from Contracts with Customers (Topic 606), Leases (Topic 840), and Leases (Topic 842), which clarifies transition provisions for certain public business entities. The effective dates for the ASUs issued in 2016 and 2017 are the same as the effective date for ASU 2014-09. The revised effective date for ASU 2014-09 is for annual and interim periods beginning on or after December 15, 2017. Entities have the option of using either a full retrospective approach or a modified retrospective approach to adopt the guidance in ASU 2014-09. The Company will utilize the modified retrospective approach. The Company has mostly completed its evaluation process to assess the impact of the new guidance on its ongoing financial reporting. The evaluation process included tasks such as performing an analysis to identify relevant revenue streams, reviewing current revenue-based contracts and evaluating revenue recognition requirements in order to prepare a high-level road map and implementation work plan. Based on the evaluation, our current contracts and revenue streams, revenue recognition is mostly consistent under both the previous and new standard. In July 2015, the FASB issued Accounting Standards Board Update No. 2015-11: Inventory (Topic 330) - Simplifying the Measurement of Inventory (“ASU 2015-11”). ASU 2015-11 has changed the measurement requirement of inventory within the scope of this guidance from lower of cost or market to the lower of cost and net realizable value. The guidance is also defining net realizable value as: the estimated selling price in the ordinary course of business, less reasonably predictable costs of completion, disposal, and transportation. The guidance is effective for annual periods beginning after December 15, 2016, including interim periods within that reporting period and amendments to be applied prospectively with earlier application permitted as of the beginning of an interim or annual reporting period. The adoption of the requirements of ASU 2015-11 during 2017 did not significantly impact the Company’s financial statements. In February 2016, the FASB issued Accounting Standards Board Update No. 2016-02: Leases (ASC 842) (“ASU 2016-02”). Pursuant to the guidance in ASU 2016-02, lessees will need to recognize almost all leases on their balance sheet as a right-of-use asset and a lease liability. It will be critical to identify leases embedded in a contract to avoid misstating the lessee’s balance sheet. For income statement purposes, the FASB retained a dual model, requiring leases to be classified as either operating or finance. Classification will be based on criteria that are largely similar to those applied in current lease accounting, but without explicit bright lines. In September 2017, the FASB issued Accounting Standards Board Update No. 2017-13: Revenue Recognition (Topic 605), Revenue from Contracts with Customers (Topic 606), Leases (Topic 840), and Leases (Topic 842), which clarifies transition provisions for certain public business entities. In January 2018, the FASB issued Accounting Standards Board Update No. 2018-01: Leases (Topic 842), which permits an entity to elect an optional transition practical expedient related to land easements. The effective dates for the ASUs issued in 2017 and 2018 are the same as the effective date for ASU 2016-02. ASU 2016-02 is effective for public companies for annual reporting periods beginning after December 15, 2018, and interim periods within those fiscal years. The Company is currently evaluating the effect of the standard on its ongoing financial reporting. In August 2016, the FASB issued Accounting Standards Board Update No. 2016-15: Statement of Cash Flows (Topic 230) - Classification of Certain Cash Receipts and Cash Payments (“ASU 2016-15”). ASU 2016-15 provides new guidance designed to reduce existing diversity in practice of how certain cash receipts and cash payments are presented and classified in the statement of cash flows. The ASU addresses eight specific cash flow issues, of which the following are expected to be applicable to the Company: 1) debt prepayment and extinguishment costs, 2) proceeds from settlement of insurance claims, 3) distributions received from equity method investments, and 4) separately identifiable cash flows and application of the predominance principle. In addition, in November 2016, the FASB issued Accounting Standards Board Update No. 2016-18: Statement of Cash Flows (Topic 230), Restricted Cash ("ASU 2016-18"). ASU 2016-18 clarifies certain existing principles in ASC 230, including providing additional guidance related to transfers between cash and restricted cash and how entities present, in their statement of cash flows, the cash receipts and cash payments that directly affect the restricted cash accounts. These ASUs will be effective for the Company’s fiscal year beginning January 1, 2018 and subsequent interim periods, with retrospective application to each period presented being required and early adoption is permitted. The adoption of ASU 2016-15 and ASU 2016-18 will modify the Company's current disclosures and reclassifications within the consolidated statement of cash flows but they are not expected to have a material effect on the Company’s consolidated financial statements. In January 2017, the FASB issued Accounting Standards Board Update No. 2017-01: Business Combinations (Topic 805) - Clarifying the Definition of a Business (“ASU 2017-01”). The ASU clarifies the definition of business with the objective of adding guidance to assist entities with evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. ASU 2017-01 will be effective for the Company’s fiscal year beginning January 1, 2018 and subsequent interim periods with prospective application with impacts on the Company’s consolidated financial statements that may vary depending on each specific acquisition. Early adoption is conditionally permitted. In January 2017, the FASB issued Accounting Standards Board Update No. 2017-04, Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment (“ASU 2017-04”). The ASU 2017-04 eliminates Step 2 of the current goodwill impairment test, which requires a hypothetical purchase price allocation to measure goodwill impairment. A goodwill impairment loss will instead be measured at the amount by which a reporting unit's carrying value exceeds its fair value, not to exceed the recorded amount of goodwill. The provisions of this ASU are effective for years beginning after December 15, 2019, with early adoption permitted for any impairment test performed on testing dates after January 1, 2017. The Company early adopted this standard as of October 1, 2017 and this ASU did not have a significant impact on its financial statements or disclosures. In February 2017 the FASB issued Accounting Standards Board Update No. 2017-05: Other Income - Gains and Loss from Derecognition of Nonfinancial Assets (subtopic 610-20). The amendments in this ASU provide clarification that nonfinancial assets within the scope of ASC 610-20 may include nonfinancial assets transferred within a legal entity to a counterparty and that an entity should allocate consideration to each distinct asset by applying the guidance in ASC 606 on allocating the transaction price to performance obligations. The amendments in this ASU also require entities to de-recognize a distinct non-financial asset or distinct in substance non-financial asset in a partial sale transaction when it (1) does not have (or ceases to have) a controlling financial interest in the legal entity that holds the asset in accordance with ASC 810 and (2) transfers control of the asset in accordance with ASC 606. The amendments to this ASU are effective in fiscal years beginning after December 15, 2017, including interim periods within those annual periods. The Company does not expect the adoption of the amendments in this ASU to have a significant impact on the Company’s consolidated financial statements. In March 2017 the FASB issued Accounting Standards Board Update No. 2017-07: Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost. The ASU requires entities to: 1) disaggregate the current-service-cost component from the other components of net benefit cost (the “other components”) and present it with other current compensation costs for related employees in the income statement and 2) present the other components elsewhere in the income statement and outside of income from operations if that subtotal is presented. In addition, the ASU requires entities to disclose the income statement lines that contain the other components if they are not presented on appropriately described separate lines. The ASU’s amendments are effective for interim and annual periods beginning after December 15, 2017. The Company is currently assessing this ASU’s impact on its financial statements. In May 2017 the FASB issued Accounting Standards Board Update No. 2017-09: Compensation - Stock Compensation (Topic 718). The amendments in the ASU provide guidance about which changes to the terms or conditions of a share-based payment award require an entity to apply modification accounting in Topic 718. The ASU’s amendments are effective for interim and annual periods beginning after December 15, 2017. Early adoption is permitted. An entity need to apply the amendments in this ASU on a prospective basis to an award modified on or after the adoption date. The impact on the Company’s consolidated financial statements would vary depending on the nature of any potential future changes to share-based payment awards. All other new accounting pronouncements issued but not yet effective or adopted have been deemed to be not relevant to the Company and, accordingly, are not expected to have an impact once adopted.

Recently Issued Accounting Standards

In May 2014, the Financial Accounting Standards Board (the “FASB”) issued Accounting Standards Board Update No. 2014-09: Revenue from Contracts with Customers (Topic 606) (“ASU 2014-09”). ASU 2014-09 supersedes the existing revenue recognition guidance and most industry-specific guidance applicable to revenue recognition. According to the new guidance, an entity will apply a principles-based five step model to recognize revenue upon the transfer of promised goods or services to customers and in an amount that reflects the consideration for which the entity expects to be entitled in exchange for those goods or services. Additionally, in March 2016, the FASB issued Accounting Standards Board Update No. 2016-08, Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net), which clarifies the implementation guidance on principal versus agent considerations. In April 2016, the FASB issued Accounting Standards Board Update No. 2016-10, Revenue from Contracts with Customers (Topic 606): Identifying Performance Obligations and Licensing, which clarifies the identification of performance obligations and the licensing implementation guidance. In May 2016, the FASB issued Accounting Standards Board Update No. 2016-12, Revenue from Contracts with Customers (Topic 606): Narrow-Scope Improvements and Practical Expedients, which provides clarifying guidance in certain narrow areas and adds some practical expedients. In December 2016, the FASB issued Accounting Standards Board Update No. 2016-20, Technical Corrections and Improvements to Topic 606: Revenue from Contracts with Customers, which facilitates 13 technical corrections and improvements to Topic 606 and other Topics amended by ASU 2014-09 to increase stakeholders’ awareness of the proposals and to expedite improvements to ASU 2014-09. In September 2017, the FASB issued Accounting Standards Board Update No. 2017-13: Revenue Recognition (Topic 605), Revenue from Contracts with Customers (Topic 606), Leases (Topic 840), and Leases (Topic 842), which clarifies transition provisions for certain public business entities. The effective dates for the ASUs issued in 2016 and 2017 are the same as the effective date for ASU 2014-09. The revised effective date for ASU 2014-09 is for annual and interim periods beginning on or after December 15, 2017. Entities have the option of using either a full retrospective approach or a modified retrospective approach to adopt the guidance in ASU 2014-09. The Company will utilize the modified retrospective approach. The Company has mostly completed its evaluation process to assess the impact of the new guidance on its ongoing financial reporting. The evaluation process included tasks such as performing an analysis to identify relevant revenue streams, reviewing current revenue-based contracts and evaluating revenue recognition requirements in order to prepare a high-level road map and implementation work plan. Based on the evaluation, our current contracts and revenue streams, revenue recognition is mostly consistent under both the previous and new standard.

In July 2015, the FASB issued Accounting Standards Board Update No. 2015-11: Inventory (Topic 330) - Simplifying the Measurement of Inventory (“ASU 2015-11”). ASU 2015-11 has changed the measurement requirement of inventory within the scope of this guidance from lower of cost or market to the lower of cost and net realizable value. The guidance is also defining net realizable value as: the estimated selling price in the ordinary course of business, less reasonably predictable costs of completion, disposal, and transportation. The guidance is effective for annual periods beginning after December 15, 2016, including interim periods within that reporting period and amendments to be applied prospectively with earlier application permitted as of the beginning of an interim or annual reporting period. The adoption of the requirements of ASU 2015-11 during 2017 did not significantly impact the Company’s financial statements.

In February 2016, the FASB issued Accounting Standards Board Update No. 2016-02: Leases (ASC 842) (“ASU 2016-02”). Pursuant to the guidance in ASU 2016-02, lessees will need to recognize almost all leases on their balance sheet as a right-of-use asset and a lease liability. It will be critical to identify leases embedded in a contract to avoid misstating the lessee’s balance sheet. For income statement purposes, the FASB retained a dual model, requiring leases to be classified as either operating or finance. Classification will be based on criteria that are largely similar to those applied in current lease accounting, but without explicit bright lines. In September 2017, the FASB issued Accounting Standards Board Update No. 2017-13: Revenue Recognition (Topic 605), Revenue from Contracts with Customers (Topic 606), Leases (Topic 840), and Leases (Topic 842), which clarifies transition provisions for certain public business entities. In January 2018, the FASB issued Accounting Standards Board Update No. 2018-01: Leases (Topic 842), which permits an entity to elect an optional transition practical expedient related to land easements. The effective dates for the ASUs issued in 2017 and 2018 are the same as the effective date for ASU 2016-02. ASU 2016-02 is effective for public companies for annual reporting periods beginning after December 15, 2018, and interim periods within those fiscal years. The Company is currently evaluating the effect of the standard on its ongoing financial reporting.

In August 2016, the FASB issued Accounting Standards Board Update No. 2016-15: Statement of Cash Flows (Topic 230) - Classification of Certain Cash Receipts and Cash Payments (“ASU 2016-15”). ASU 2016-15 provides new guidance designed to reduce existing diversity in practice of how certain cash receipts and cash payments are presented and classified in the statement of cash flows. The ASU addresses eight specific cash flow issues, of which the following are expected to be applicable to the Company: 1) debt prepayment and extinguishment costs, 2) proceeds from settlement of insurance claims, 3) distributions received from equity method investments, and 4) separately identifiable cash flows and application of the predominance principle. In addition, in November 2016, the FASB issued Accounting Standards Board Update No. 2016-18: Statement of Cash Flows (Topic 230), Restricted Cash ("ASU 2016-18"). ASU 2016-18 clarifies certain existing principles in ASC 230, including providing additional guidance related to transfers between cash and restricted cash and how entities present, in their statement of cash flows, the cash receipts and cash payments that directly affect the restricted cash accounts. These ASUs will be effective for the Company’s fiscal year beginning January 1, 2018 and subsequent interim periods, with retrospective application to each period presented being required and early adoption is permitted. The adoption of ASU 2016-15 and ASU 2016-18 will modify the Company's current disclosures and reclassifications within the consolidated statement of cash flows but they are not expected to have a material effect on the Company’s consolidated financial statements.

In January 2017, the FASB issued Accounting Standards Board Update No. 2017-01: Business Combinations (Topic 805) - Clarifying the Definition of a Business (“ASU 2017-01”). The ASU clarifies the definition of business with the objective of adding guidance to assist entities with evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. ASU 2017-01 will be effective for the Company’s fiscal year beginning January 1, 2018 and subsequent interim periods with prospective application with impacts on the Company’s consolidated financial statements that may vary depending on each specific acquisition. Early adoption is conditionally permitted.

In January 2017, the FASB issued Accounting Standards Board Update No. 2017-04, Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment (“ASU 2017-04”). The ASU 2017-04 eliminates Step 2 of the current goodwill impairment test, which requires a hypothetical purchase price allocation to measure goodwill impairment. A goodwill impairment loss will instead be measured at the amount by which a reporting unit's carrying value exceeds its fair value, not to exceed the recorded amount of goodwill. The provisions of this ASU are effective for years beginning after December 15, 2019, with early adoption permitted for any impairment test performed on testing dates after January 1, 2017. The Company early adopted this standard as of October 1, 2017 and this ASU did not have a significant impact on its financial statements or disclosures.

In February 2017 the FASB issued Accounting Standards Board Update No. 2017-05: Other Income - Gains and Loss from Derecognition of Nonfinancial Assets (subtopic 610-20). The amendments in this ASU provide clarification that nonfinancial assets within the scope of ASC 610-20 may include nonfinancial assets transferred within a legal entity to a counterparty and that an entity should allocate consideration to each distinct asset by applying the guidance in ASC 606 on allocating the transaction price to performance obligations. The amendments in this ASU also require entities to de-recognize a distinct non-financial asset or distinct in substance non-financial asset in a partial sale transaction when it (1) does not have (or ceases to have) a controlling financial interest in the legal entity that holds the asset in accordance with ASC 810 and (2) transfers control of the asset in accordance with ASC 606. The amendments to this ASU are effective in fiscal years beginning after December 15, 2017, including interim periods within those annual periods. The Company does not expect the adoption of the amendments in this ASU to have a significant impact on the Company’s consolidated financial statements.

In March 2017 the FASB issued Accounting Standards Board Update No. 2017-07: Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost. The ASU requires entities to: 1) disaggregate the current-service-cost component from the other components of net benefit cost (the “other components”) and present it with other current compensation costs for related employees in the income statement and 2) present the other components elsewhere in the income statement and outside of income from operations if that subtotal is presented. In addition, the ASU requires entities to disclose the income statement lines that contain the other components if they are not presented on appropriately described separate lines. The ASU’s amendments are effective for interim and annual periods beginning after December 15, 2017. The Company is currently assessing this ASU’s impact on its financial statements.

In May 2017 the FASB issued Accounting Standards Board Update No. 2017-09: Compensation - Stock Compensation (Topic 718). The amendments in the ASU provide guidance about which changes to the terms or conditions of a share-based payment award require an entity to apply modification accounting in Topic 718. The ASU’s amendments are effective for interim and annual periods beginning after December 15, 2017. Early adoption is permitted. An entity need to apply the amendments in this ASU on a prospective basis to an award modified on or after the adoption date. The impact on the Company’s consolidated financial statements would vary depending on the nature of any potential future changes to share-based payment awards.

All other new accounting pronouncements issued but not yet effective or adopted have been deemed to be not relevant to the Company and, accordingly, are not expected to have an impact once adopted.