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Document and Entity Information
Financial Statements
Balance Sheets
Balance Sheets [Parenthetical]
Statements of Operations and Comprehensive Income (Loss)
Statements of Cash Flows
Statement of Changes in Stockholders' Equity
Notes to Financial Statements
Organization and Operations
Significant Accounting Policies
Earnings (Loss) Per Share
Investments in Available-for-Sale Securities
Investment in ClearSign
Redeemable Convertible Preferred Stock
Stock-based Compensation
Income Taxes
Related Party Transactions
Commitments and Contingencies
Subsequent Event
Accounting Policies
Significant Accounting Policies (Policies)
Notes Tables
Investments in Available-for-Sale Securities (Tables)
Stock-based Compensation (Tables)
Notes Details
Significant Accounting Policies (Details Textual)
Earnings (Loss) Per Share (Details Textual)
Investments in Available-for-Sale Securities (Details)
Investments in Available-for-Sale Securities (Details 1)
Investments in Available-for-Sale Securities (Details Textual)
Investment in ClearSign (Details Textual)
Redeemable Convertible Preferred Stock (Details Textual)
Stock-based Compensation (Details)
Stock-based Compensation (Details 1)
Stock-based Compensation (Details Textual)
Income Taxes (Details Textual)
Related Party Transactions (Details Textual)
Subsequent Event (Details Textual)
All Reports
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