Available-for-sale Securities, Amortized cost, Maturity less than twelve months No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. The dollar amount of transfers between the three levels of fair value hierarchy. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Available-for-sale Securities, Amortized cost, Greater than twelve months No authoritative reference available. Marketable securities treated as available for sale securities No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Dividends Paid Date Day Month And Year No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Debt instrument maturity date in months No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Available-for-sale Securities, Fair Value, Maturity less than twelve months No authoritative reference available. Average Lease Term Minimum No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Description of the stock split arrangement where the financial statements were issued prior to the stock split effective date. No authoritative reference available. No authoritative reference available. No authoritative reference available. Average Lease Term Maximum No authoritative reference available. Options To Purchase Shares of Common Stock No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Stock Split Date of Record Day Month and Year No authoritative reference available. Operating Leases Text Block No authoritative reference available. Stock Split Date Declared Day Month And Year No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. The quantity of shares issuable on stock options awarded under the plan subsequent to the reporting period. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Weighted-Average Exercise Prices of Options No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Weighted Average Number of Shares Assumed Upon Exercise of Stock Options No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Stock Options Grant Date No authoritative reference available. No authoritative reference available. No authoritative reference available. Authorized and Issued Shares [Table Text Block] No authoritative reference available. Available-for-sale Securities, Fair Value, Maturity greater than twelve months No authoritative reference available. Schedule Of Fair Value Assumptions For Options Granted Text Block No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Schedule Of Comprehensive and Other Comprehensive Income [Table Text Block] No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Stock options strike price. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Total volume of purchase from all suppliers maximum limits No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Loss on disposal reserve No authoritative reference available. No authoritative reference available. No authoritative reference available. Renewal Options For Noncancellable Leases No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Common Stock Dividends Per Share Cash Paid and Declared No authoritative reference available. Schedule Of Stock Options Granted Text Block No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Schedule of Dividends Information [Table Text Block] No authoritative reference available. Stock Split Effective Date Day Month and Year No authoritative reference available. Additional share of common stock for every share of common stock owned No authoritative reference available. Litigation claim amount No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Maturities of our available for sale securities No authoritative reference available. Tabular disclosure of the reconciliation of basic net earnings per share (or unit) to diluted earnings per share (or unit). No authoritative reference available. No authoritative reference available. No authoritative reference available. Share-Based Compensation Arrangement by Share-Based Payment Award, Options Vested, Number No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. The Entity's closing stock price on the date of grant of stock options. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Term Of Noncancellable Lease No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. 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