000 - Document - Document And Entity Information link:calculationLink link:definitionLink link:presentationLink 001 - Statement - Consolidated Balance Sheets (Current Period Unaudited) link:calculationLink link:definitionLink link:presentationLink 002 - Statement - Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) link:calculationLink link:definitionLink link:presentationLink 003 - Statement - Consolidated Statements of Operations and Comprehensive Income (Loss) (Unaudited) link:calculationLink link:definitionLink link:presentationLink 004 - Statement - Consolidated Statements of Operations and Comprehensive Income (Loss) (Unaudited) (Parentheticals) link:calculationLink link:definitionLink link:presentationLink 005 - Statement - Consolidated Statements of Changes in Equity (Unaudited) link:calculationLink link:definitionLink link:presentationLink 006 - Statement - Consolidated Statements of Cash Flows (Unaudited) link:calculationLink link:definitionLink link:presentationLink 007 - Disclosure - Note 1 - Organization and Nature of Operations link:calculationLink link:definitionLink link:presentationLink 008 - Disclosure - Note 2 - Basis of Presentation link:calculationLink link:definitionLink link:presentationLink 009 - Disclosure - Note 3 - Summary of Significant Accounting Policies link:calculationLink link:definitionLink link:presentationLink 010 - Disclosure - Note 4 - Other Recent Business Transactions or Events link:calculationLink link:definitionLink link:presentationLink 011 - Disclosure - Note 5 - Investment Banking and New Issue and Net Trading link:calculationLink link:definitionLink link:presentationLink 012 - Disclosure - Note 6 - Receivables from and Payables to Brokers, Dealers, and Clearing Agencies link:calculationLink link:definitionLink link:presentationLink 013 - Disclosure - Note 7 - Financial Instruments link:calculationLink link:definitionLink link:presentationLink 014 - Disclosure - Note 8 - Fair Value Disclosures link:calculationLink link:definitionLink link:presentationLink 015 - Disclosure - Note 9 - Derivative Financial Instruments link:calculationLink link:definitionLink link:presentationLink 016 - Disclosure - Note 10 - Collateralized Securities Transactions link:calculationLink link:definitionLink link:presentationLink 017 - Disclosure - Note 11 - Investments in Equity Method Affiliates link:calculationLink link:definitionLink link:presentationLink 018 - Disclosure - Note 12 - Leases link:calculationLink link:definitionLink link:presentationLink 019 - Disclosure - Note 13 - Other Receivables, Other Assets, Accounts Payable and Other Liabilities, and Accrued Compensation link:calculationLink link:definitionLink link:presentationLink 020 - Disclosure - Note 14 - Variable Interest Entities link:calculationLink link:definitionLink link:presentationLink 021 - Disclosure - Note 15 - Debt link:calculationLink link:definitionLink link:presentationLink 022 - Disclosure - Note 16 - Equity link:calculationLink link:definitionLink link:presentationLink 023 - Disclosure - Note 17 - Income Taxes link:calculationLink link:definitionLink link:presentationLink 024 - Disclosure - Note 18 - Net Capital Requirements link:calculationLink link:definitionLink link:presentationLink 025 - Disclosure - Note 19 - Earnings (Loss) Per Common Share link:calculationLink link:definitionLink link:presentationLink 026 - Disclosure - Note 20 - Commitments and Contingencies link:calculationLink link:definitionLink link:presentationLink 027 - Disclosure - Note 21 - Segment and Geographic Information link:calculationLink link:definitionLink link:presentationLink 028 - Disclosure - Note 22 - Supplemental Cash Flow Disclosure link:calculationLink link:definitionLink link:presentationLink 029 - Disclosure - Note 23 - Related Party Transactions link:calculationLink link:definitionLink link:presentationLink 030 - Disclosure - Note 24 - Due from Due to Related Parties link:calculationLink link:definitionLink link:presentationLink 031 - Disclosure - Note 25 - Subsequent Event link:calculationLink link:definitionLink link:presentationLink 995478 - Disclosure - Significant Accounting Policies (Policies) link:calculationLink link:definitionLink link:presentationLink 995479 - Disclosure - Note 5 - Investment Banking and New Issue and Net Trading (Tables) link:calculationLink link:definitionLink link:presentationLink 995480 - Disclosure - Note 6 - Receivables from and Payables to Brokers, Dealers, and Clearing Agencies (Tables) link:calculationLink link:definitionLink link:presentationLink 995481 - Disclosure - Note 7 - Financial Instruments (Tables) link:calculationLink link:definitionLink link:presentationLink 995482 - Disclosure - Note 8 - Fair Value Disclosures (Tables) link:calculationLink link:definitionLink link:presentationLink 995483 - Disclosure - Note 9 - Derivative Financial Instruments (Tables) link:calculationLink link:definitionLink link:presentationLink 995484 - Disclosure - Note 10 - Collateralized Securities Transactions (Tables) link:calculationLink link:definitionLink link:presentationLink 995485 - Disclosure - Note 11 - Investments in Equity Method Affiliates (Tables) link:calculationLink link:definitionLink link:presentationLink 995486 - Disclosure - Note 12 - Leases (Tables) link:calculationLink link:definitionLink link:presentationLink 995487 - Disclosure - Note 13 - Other Receivables, Other Assets, Accounts Payable and Other Liabilities, and Accrued Compensation (Tables) link:calculationLink link:definitionLink link:presentationLink 995488 - Disclosure - Note 14 - Variable Interest Entities (Tables) link:calculationLink link:definitionLink link:presentationLink 995489 - Disclosure - Note 15 - Debt (Tables) link:calculationLink link:definitionLink link:presentationLink 995490 - Disclosure - Note 16 - Equity (Tables) link:calculationLink link:definitionLink link:presentationLink 995491 - Disclosure - Note 17 - Income Taxes (Tables) link:calculationLink link:definitionLink link:presentationLink 995492 - Disclosure - Note 19 - Earnings (Loss) Per Common Share (Tables) link:calculationLink link:definitionLink link:presentationLink 995493 - Disclosure - Note 21 - Segment and Geographic Information (Tables) link:calculationLink link:definitionLink link:presentationLink 995494 - Disclosure - Note 23 - Related Party Transactions (Tables) link:calculationLink link:definitionLink link:presentationLink 995495 - Disclosure - Note 24 - Due from Due to Related Parties (Tables) link:calculationLink link:definitionLink link:presentationLink 995496 - Disclosure - Note 1 - Organization and Nature of Operations (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995497 - Disclosure - Note 2 - Basis of Presentation (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995498 - Disclosure - Note 3 - Summary of Significant Accounting Policies (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995499 - Disclosure - Note 4 - Other Recent Business Transactions or Events (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995500 - Disclosure - Note 5 - Investment Banking and New Issue and Net Trading (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995501 - Disclosure - Note 5 - Investment Banking and New Issue and Net Trading - Investment Banking and New Issue (Details) link:calculationLink link:definitionLink link:presentationLink 995502 - Disclosure - Note 5 - Investment Banking and New Issue and Net Trading - Net Trading (Details) link:calculationLink link:definitionLink link:presentationLink 995503 - Disclosure - Note 6 - Receivables from and Payables to Brokers, Dealers, and Clearing Agencies - Receivables from and Payables to from Brokers, Dealers and Clearing Agencies (Details) link:calculationLink link:definitionLink link:presentationLink 995504 - Disclosure - Note 7 - Financial Instruments (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995505 - Disclosure - Note 7 - Financial Instruments - Investments - Trading (Details) link:calculationLink link:definitionLink link:presentationLink 995506 - Disclosure - Note 7 - Financial Instruments - Financial Instruments Sold, Not Yet Purchased (Details) link:calculationLink link:definitionLink link:presentationLink 995507 - Disclosure - Note 7 - Financial Instruments - Other Investments, at Fair Value (Details) link:calculationLink link:definitionLink link:presentationLink 995508 - Disclosure - Note 7 - Financial Instruments - Other Investments, at Fair Value 2 (Details) link:calculationLink link:definitionLink link:presentationLink 995509 - Disclosure - Note 8 - Fair Value Disclosures (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995510 - Disclosure - Note 8 - Fair Value Disclosures - Fair Value Measurements on a Recurring Basis (Details) link:calculationLink link:definitionLink link:presentationLink 995511 - Disclosure - Note 8 - Fair Value Disclosures - Fair Value Measurements of Investments in Certain Entities That Calculate Net Asset Value per Share (or Its Equivalent) (Details) link:calculationLink link:definitionLink link:presentationLink 995512 - Disclosure - Note 9 - Derivative Financial Instruments (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995513 - Disclosure - Note 9 - Derivative Financial Instruments - Balance Sheet Information (Details) link:calculationLink link:definitionLink link:presentationLink 995514 - Disclosure - Note 9 - Derivative Financial Instruments - Statement of Operations Information (Details) link:calculationLink link:definitionLink link:presentationLink 995515 - Disclosure - Note 10 - Collateralized Securities Transactions (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995516 - Disclosure - Note 10 - Collateralized Securities Transactions - Secured Borrowings (Details) link:calculationLink link:definitionLink link:presentationLink 995517 - Disclosure - Note 11 - Investments in Equity Method Affiliates - Investments in Equity Method Affiliates (Details) link:calculationLink link:definitionLink link:presentationLink 995518 - Disclosure - Note 12 - Leases (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995519 - Disclosure - Note 12 - Leases - Future Maturity of Lease Liabilities (Details) link:calculationLink link:definitionLink link:presentationLink 995520 - Disclosure - Note 13 - Other Receivables, Other Assets, Accounts Payable and Other Liabilities, and Accrued Compensation (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995521 - Disclosure - Note 13 - Other Receivables, Other Assets, Accounts Payable and Other Liabilities, and Accrued Compensation - Other Receivables (Details) link:calculationLink link:definitionLink link:presentationLink 995522 - Disclosure - Note 13 - Other Receivables, Other Assets, Accounts Payable and Other Liabilities, and Accrued Compensation - Other Assets (Details) link:calculationLink link:definitionLink link:presentationLink 995523 - Disclosure - Note 13 - Other Receivables, Other Assets, Accounts Payable and Other Liabilities, and Accrued Compensation - Accounts Payable and Other Liabilities (Details) link:calculationLink link:definitionLink link:presentationLink 995524 - Disclosure - Note 13 - Other Receivables, Other Assets, Accounts Payable and Other Liabilities, and Accrued Compensation - Accrued Compensation (Details) link:calculationLink link:definitionLink link:presentationLink 995525 - Disclosure - Note 14 - Variable Interest Entities (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995526 - Disclosure - Note 14 - Variable Interest Entities - Consolidated VIEs (Details) link:calculationLink link:definitionLink link:presentationLink 995527 - Disclosure - Note 14 - Variable Interest Entities - Carrying Value of Variable Interests in Non-consolidated Variable Interest Entities (Details) link:calculationLink link:definitionLink link:presentationLink 995528 - Disclosure - Note 15 - Debt (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995529 - Disclosure - Note 15 - Debt - Detail of Debt (Details) link:calculationLink link:definitionLink link:presentationLink 995530 - Disclosure - Note 15 - Debt - Interest Expense (Details) link:calculationLink link:definitionLink link:presentationLink 995531 - Disclosure - Note 16 - Equity (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995532 - Disclosure - Note 16 - Equity - Rollforward of Shares Outstanding (Details) link:calculationLink link:definitionLink link:presentationLink 995533 - Disclosure - Note 16 - Equity - Rollforward of Units Outstanding (Details) link:calculationLink link:definitionLink link:presentationLink 995534 - Disclosure - Note 16 - Equity - Schedule of Effects of Changes in Ownership Interest Subsidiary (Details) link:calculationLink link:definitionLink link:presentationLink 995535 - Disclosure - Note 16 - Equity - Rollforward of Non-controlling Interests (Details) link:calculationLink link:definitionLink link:presentationLink 995536 - Disclosure - Note 17 - Income Taxes (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995537 - Disclosure - Note 17 - Income Taxes - Income Tax Expense (Details) link:calculationLink link:definitionLink link:presentationLink 995538 - Disclosure - Note 18 - Net Capital Requirements (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995539 - Disclosure - Note 19 - Earnings (Loss) Per Common Share (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995540 - Disclosure - Note 19 - Earnings (Loss) Per Common Share - Earnings (Loss) Per Common Share (Details) link:calculationLink link:definitionLink link:presentationLink 995541 - Disclosure - Note 21 - Segment and Geographic Information (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995542 - Disclosure - Note 21 - Segment and Geographic Information - Statements of Operations Information (Details) link:calculationLink link:definitionLink link:presentationLink 995543 - Disclosure - Note 21 - Segment and Geographic Information - Balance Sheet Data (Details) link:calculationLink link:definitionLink link:presentationLink 995544 - Disclosure - Note 21 - Segment and Geographic Information - Geographic Data (Details) link:calculationLink link:definitionLink link:presentationLink 995545 - Disclosure - Note 22 - Supplemental Cash Flow Disclosure (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995546 - Disclosure - Note 23 - Related Party Transactions (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995547 - Disclosure - Note 23 - Related Party Transactions - Routine Transactions Recognized in the Statements of Operations (Details) link:calculationLink link:definitionLink link:presentationLink 995548 - Disclosure - Note 24 - Due from Due to Related Parties - Due from Due to Related Parties (Details) link:calculationLink link:definitionLink link:presentationLink 995549 - Disclosure - Note 25 - Subsequent Event (Details Textual) link:calculationLink link:definitionLink link:presentationLink