00 - Document - Document and Entity Information link:presentationLink link:definitionLink link:calculationLink 01 - Statement - Condensed Balance Sheets (Unaudited) link:presentationLink link:definitionLink link:calculationLink 011 - Statement - Condensed Balance Sheets (Unaudited) (Parenthetical) link:presentationLink link:definitionLink link:calculationLink 02 - Statement - Condensed Statements of Operations (Unaudited) link:presentationLink link:definitionLink link:calculationLink 03 - Statement - Condensed Statements of Cash Flows (Unaudited) link:presentationLink link:definitionLink link:calculationLink 06001 - Disclosure - Basis of Presentation link:presentationLink link:definitionLink link:calculationLink 06002 - Disclosure - Recent Accounting Pronouncements link:presentationLink link:definitionLink link:calculationLink 06003 - Disclosure - Note Receivable and Subsequent Event link:presentationLink link:definitionLink link:calculationLink 06004 - Disclosure - Changes in Shareholders' Equity link:presentationLink link:definitionLink link:calculationLink 06005 - Disclosure - Debt link:presentationLink link:definitionLink link:calculationLink 06006 - Disclosure - Other Income link:presentationLink link:definitionLink link:calculationLink 06007 - Disclosure - Track Maintenance Agreement link:presentationLink link:definitionLink link:calculationLink 06008 - Disclosure - Income (Loss) per Common Share link:presentationLink link:definitionLink link:calculationLink 06009 - Disclosure - Commitments and Contingent Liabilities link:presentationLink link:definitionLink link:calculationLink 06010 - Disclosure - Dividends link:presentationLink link:definitionLink link:calculationLink