Summary of Significant Accounting Policies (Policies)	6 Months Ended
Jun. 30, 2025
Accounting Policies [Abstract]
Principles of Consolidation and Basis of Presentation	Principles of Consolidation and Basis of Presentation The accompanying unaudited Condensed Consolidated Financial Statements were prepared in accordance with generally accepted accounting principles in the United States of America (“GAAP”) and include the accounts of the Company, its subsidiary, NGSG Properties, LLC, which owns the Company’s headquarters office building, and the rabbi trust associated with our deferred compensation plan. All significant intercompany accounts and transactions for the periods presented have been eliminated in consolidation. These financial statements include all adjustments, consisting of normal recurring adjustments, considered necessary for the fair presentation of our financial position as of June 30, 2025, and the results of our operations for the three and six months ended June 30, 2025, and 2024, respectively. As permitted by the rules and regulations of the Securities and Exchange Commission (the “SEC”), the accompanying Condensed Consolidated Financial Statements do not include all disclosures normally required by GAAP. These financial statements should be read in conjunction with the Consolidated Financial Statements included in our Annual Report on Form 10-K for the year ended December 31, 2024, as filed with the SEC. In our opinion, the Condensed Consolidated Financial Statements provide a fair representation of our financial position, results of operations, changes in stockholders’ equity and cash flows for the periods presented. Although we review our service and product offerings to analyze the nature of our revenue, costs and expenses, the net income and non-GAAP financial measures including EBITDA and Adjusted gross margin are not captured or analyzed by these categories. Our chief executive officer (“CEO”) serves as the chief operating decision maker and does not make resource allocation decisions or assess the performance of the business based on these categories, but rather on the entire entity in the aggregate. Accordingly, the measures of profit and loss and total assets are effectively those of the Company as a whole as reflected in these Condensed Consolidated Financial Statements. Based on these facts and circumstances, we have concluded that we operate in one business segment. Certain reclassifications have been made to prior periods to conform to the current presentation. In our Condensed Consolidated Statements of Operations, (gains) and losses on the sale of assets have been reclassified from selling, general and administrative expenses to a stand-alone caption included within total operating income. The results of operations for the three and six months ended June 30, 2025 are not necessarily indicative of the results of operations to be expected for the full fiscal year ending December 31, 2025.
Recently Issued Accounting Pronouncements	Recently Issued Accounting Pronouncements In November 2024, the Financial Accounting Standards Board issued ASU 2024-03 “Income Statement-Reporting Comprehensive Income-Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expense” (“ASU 2024-03”) which expands annual and interim disclosures for certain types of expenses (including purchases of inventory, employee compensation, depreciation, amortization, and depletion) in commonly presented expense captions (such as cost of sales, selling, general & administrative expenses, and research and development). ASU 2024-03 is effective for our annual periods beginning January 1, 2027, and for interim periods beginning January 1, 2028, with early adoption permitted. The adoption of ASU 2024-03 is not expected to have a material impact on our Consolidated Financial Statements or disclosures.

Summary of Significant Accounting Policies (Policies)

Principles of Consolidation and Basis of Presentation

The accompanying unaudited Condensed Consolidated Financial Statements were prepared in accordance with generally accepted accounting principles in the United States of America (“GAAP”) and include the accounts of the Company, its subsidiary, NGSG Properties, LLC, which owns the Company’s headquarters office building, and the rabbi trust associated with our deferred compensation plan. All significant intercompany accounts and transactions for the periods presented have been eliminated in consolidation.

These financial statements include all adjustments, consisting of normal recurring adjustments, considered necessary for the fair presentation of our financial position as of June 30, 2025, and the results of our operations for the three and six months ended June 30, 2025, and 2024, respectively. As permitted by the rules and regulations of the Securities and Exchange Commission (the “SEC”), the accompanying Condensed Consolidated Financial Statements do not include all disclosures normally required by GAAP. These financial statements should be read in conjunction with the Consolidated Financial Statements included in our Annual Report on Form 10-K for the year ended December 31, 2024, as filed with the SEC. In our opinion, the Condensed Consolidated Financial Statements provide a fair representation of our financial position, results of operations, changes in stockholders’ equity and cash flows for the periods presented.

Although we review our service and product offerings to analyze the nature of our revenue, costs and expenses, the net income and non-GAAP financial measures including EBITDA and Adjusted gross margin are not captured or analyzed by these categories. Our chief executive officer (“CEO”) serves as the chief operating decision maker and does not make resource allocation decisions or assess the performance of the business based on these categories, but rather on the entire entity in the aggregate. Accordingly, the measures of profit and loss and total assets are effectively those of the Company as a whole as reflected in these Condensed Consolidated Financial Statements. Based on these facts and circumstances, we have concluded that we operate in one business segment.

Certain reclassifications have been made to prior periods to conform to the current presentation. In our Condensed Consolidated Statements of Operations, (gains) and losses on the sale of assets have been reclassified from selling, general and administrative expenses to a stand-alone caption included within total operating income.

The results of operations for the three and six months ended June 30, 2025 are not necessarily indicative of the results of operations to be expected for the full fiscal year ending December 31, 2025.

Recently Issued Accounting Pronouncements

In November 2024, the Financial Accounting Standards Board issued ASU 2024-03 “Income Statement-Reporting Comprehensive Income-Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expense” (“ASU 2024-03”) which expands annual and interim disclosures for certain types of expenses (including purchases of inventory, employee compensation, depreciation, amortization, and depletion) in commonly presented expense captions (such as cost of sales, selling, general & administrative expenses, and research and development). ASU 2024-03 is effective for our annual periods beginning January 1, 2027, and for interim periods beginning January 1, 2028, with early adoption permitted. The adoption of ASU 2024-03 is not expected to have a material impact on our Consolidated Financial Statements or disclosures.