000 - Document - Document And Entity Information link:calculationLink link:definitionLink link:presentationLink 001 - Statement - Balance Sheets (Current Period Unaudited) link:calculationLink link:definitionLink link:presentationLink 002 - Statement - Balance Sheets (Current Period Unaudited) (Parentheticals) link:calculationLink link:definitionLink link:presentationLink 003 - Statement - Statements of Income (Unaudited) link:calculationLink link:definitionLink link:presentationLink 004 - Statement - Statements of Changes in Stockholders' Equity (Unaudited) link:calculationLink link:definitionLink link:presentationLink 005 - Statement - Statements of Cash Flows (Unaudited) link:calculationLink link:definitionLink link:presentationLink 006 - Disclosure - Note 1 - Basis of Financial Statement Presentation link:calculationLink link:definitionLink link:presentationLink 007 - Disclosure - Note 2 - Segment Reporting link:calculationLink link:definitionLink link:presentationLink 008 - Disclosure - Note 3 - Management Contracts Purchased link:calculationLink link:definitionLink link:presentationLink 009 - Disclosure - Note 4 - Investment Advisory Agreements link:calculationLink link:definitionLink link:presentationLink 010 - Disclosure - Note 5 - Fair Value Measurements link:calculationLink link:definitionLink link:presentationLink 011 - Disclosure - Note 6 - Leases link:calculationLink link:definitionLink link:presentationLink 012 - Disclosure - Note 7 - Accrued Liabilities and Accounts Payable link:calculationLink link:definitionLink link:presentationLink 013 - Disclosure - Note 8 - Debt link:calculationLink link:definitionLink link:presentationLink 014 - Disclosure - Note 9 - Income Taxes link:calculationLink link:definitionLink link:presentationLink 015 - Disclosure - Note 10 - Commitments and Contingencies link:calculationLink link:definitionLink link:presentationLink 016 - Disclosure - Note 11 - Equity link:calculationLink link:definitionLink link:presentationLink 017 - Disclosure - Note 12 - Earnings per Share and Dividends per Share link:calculationLink link:definitionLink link:presentationLink 018 - Disclosure - Note 13 - Recently Issued and Adopted Accounting Standards link:calculationLink link:definitionLink link:presentationLink 019 - Disclosure - Note 14 - Subsequent Events link:calculationLink link:definitionLink link:presentationLink 995466 - Disclosure - Note 5 - Fair Value Measurements (Tables) link:calculationLink link:definitionLink link:presentationLink 995467 - Disclosure - Note 6 - Leases (Tables) link:calculationLink link:definitionLink link:presentationLink 995468 - Disclosure - Note 7 - Accrued Liabilities and Accounts Payable (Tables) link:calculationLink link:definitionLink link:presentationLink 995469 - Disclosure - Note 11 - Equity (Tables) link:calculationLink link:definitionLink link:presentationLink 995470 - Disclosure - Note 12 - Earnings per Share and Dividends per Share (Tables) link:calculationLink link:definitionLink link:presentationLink 995471 - Disclosure - Note 1 - Basis of Financial Statement Presentation (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995472 - Disclosure - Note 2 - Segment Reporting (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995473 - Disclosure - Note 3 - Management Contracts Purchased (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995474 - Disclosure - Note 4 - Investment Advisory Agreements (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995475 - Disclosure - Note 5 - Fair Value Measurements - Assets Categorized on Basis of Various Levels (Details) link:calculationLink link:definitionLink link:presentationLink 995476 - Disclosure - Note 6 - Leases (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995477 - Disclosure - Note 6 - Leases - Schedule of Supplemental Lease Information (Details) link:calculationLink link:definitionLink link:presentationLink 995478 - Disclosure - Note 6 - Leases - Schedule of Future Maturities of Operating Lease Liabilities (Details) link:calculationLink link:definitionLink link:presentationLink 995479 - Disclosure - Note 7 - Accrued Liabilities and Accounts Payable - Schedule of Accrued Liabilities and Accounts Payable (Details) link:calculationLink link:definitionLink link:presentationLink 995480 - Disclosure - Note 8 - Debt (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995481 - Disclosure - Note 9 - Income Taxes (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995482 - Disclosure - Note 10 - Commitments and Contingencies (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995483 - Disclosure - Note 11 - Equity (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995484 - Disclosure - Note 11 - Equity - Schedule of RSU Activity (Details) link:calculationLink link:definitionLink link:presentationLink 995485 - Disclosure - Note 12 - Earnings per Share and Dividends per Share (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995486 - Disclosure - Note 12 - Earnings per Share and Dividends per Share - Schedule of Weighted Average Number Shares (Details) link:calculationLink link:definitionLink link:presentationLink