000 - Document - Document And Entity Information link:calculationLink link:definitionLink link:presentationLink 001 - Statement - Condensed Consolidated Balance Sheets (Current Period Unaudited) link:calculationLink link:definitionLink link:presentationLink 002 - Statement - Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) link:calculationLink link:definitionLink link:presentationLink 003 - Statement - Condensed Consolidated Statements of Operations (Unaudited) link:calculationLink link:definitionLink link:presentationLink 004 - Statement - Condensed Consolidated Statements of Comprehensive Income (Unaudited) link:calculationLink link:definitionLink link:presentationLink 005 - Statement - Condensed Consolidated Statements of Cash Flows (Unaudited) link:calculationLink link:definitionLink link:presentationLink 006 - Statement - Condensed Consolidated Statements of Stockholders' Equity (Unaudited) link:calculationLink link:definitionLink link:presentationLink 007 - Disclosure - Note 1 - Description of Business and Summary of Significant Accounting Policies link:calculationLink link:definitionLink link:presentationLink 008 - Disclosure - Note 2 - Fair Value of Financial Instruments link:calculationLink link:definitionLink link:presentationLink 009 - Disclosure - Note 3 - Accumulated Other Comprehensive Income (Loss) link:calculationLink link:definitionLink link:presentationLink 010 - Disclosure - Note 4 - Property and Equipment, Net link:calculationLink link:definitionLink link:presentationLink 011 - Disclosure - Note 5 - Revenue from Contracts with Customers link:calculationLink link:definitionLink link:presentationLink 012 - Disclosure - Note 6 - Intangible Assets, Net link:calculationLink link:definitionLink link:presentationLink 013 - Disclosure - Note 7 - Leases link:calculationLink link:definitionLink link:presentationLink 014 - Disclosure - Note 8 - Commitments and Contingencies link:calculationLink link:definitionLink link:presentationLink 015 - Disclosure - Note 9 - Stockholders' Equity and Stock-based Compensation link:calculationLink link:definitionLink link:presentationLink 016 - Disclosure - Note 10 - Net Income Per Share link:calculationLink link:definitionLink link:presentationLink 017 - Disclosure - Note 11 - Income Taxes link:calculationLink link:definitionLink link:presentationLink 018 - Disclosure - Note 12 - Segment Information and Information About Geographic Area link:calculationLink link:definitionLink link:presentationLink 019 - Disclosure - Significant Accounting Policies (Policies) link:calculationLink link:definitionLink link:presentationLink 020 - Disclosure - Note 2 - Fair Value of Financial Instruments (Tables) link:calculationLink link:definitionLink link:presentationLink 021 - Disclosure - Note 3 - Accumulated Other Comprehensive Income (Loss) (Tables) link:calculationLink link:definitionLink link:presentationLink 022 - Disclosure - Note 4 - Property and Equipment, Net (Tables) link:calculationLink link:definitionLink link:presentationLink 023 - Disclosure - Note 5 - Revenue from Contracts with Customers (Tables) link:calculationLink link:definitionLink link:presentationLink 024 - Disclosure - Note 6 - Intangible Assets, Net (Tables) link:calculationLink link:definitionLink link:presentationLink 025 - Disclosure - Note 7 - Leases (Tables) link:calculationLink link:definitionLink link:presentationLink 026 - Disclosure - Note 9 - Stockholders' Equity and Stock-based Compensation (Tables) link:calculationLink link:definitionLink link:presentationLink 027 - Disclosure - Note 10 - Net Income Per Share (Tables) link:calculationLink link:definitionLink link:presentationLink 028 - Disclosure - Note 12 - Segment Information and Information About Geographic Area (Tables) link:calculationLink link:definitionLink link:presentationLink 029 - Disclosure - Note 1 - Description of Business and Summary of Significant Accounting Policies (Details Textual) link:calculationLink link:definitionLink link:presentationLink 030 - Disclosure - Note 2 - Fair Value of Financial Instruments (Details Textual) link:calculationLink link:definitionLink link:presentationLink 031 - Disclosure - Note 2 - Fair Value of Financial Instruments - Cash and Cash Equivalents (Details) link:calculationLink link:definitionLink link:presentationLink 032 - Disclosure - Note 2 - Fair Value of Financial Instruments - Fair Value Hierarchy (Details) link:calculationLink link:definitionLink link:presentationLink 033 - Disclosure - Note 2 - Fair Value of Financial Instruments - Summary of the Fair Value of Marketable Securities (Details) link:calculationLink link:definitionLink link:presentationLink 034 - Disclosure - Note 2 - Fair Value of Financial Instruments - Summary of Derivative Financial Instruments (Details) link:calculationLink link:definitionLink link:presentationLink 035 - Disclosure - Note 2 - Fair Value of Financial Instruments - Amounts Recognized In Statement Of Operations (Details) link:calculationLink link:definitionLink link:presentationLink 036 - Disclosure - Note 3 - Accumulated Other Comprehensive Income (Loss) - Accumulated Other Comprehensive Income (Loss) (Details) link:calculationLink link:definitionLink link:presentationLink 037 - Disclosure - Note 3 - Accumulated Other Comprehensive Income (Loss) - Amounts Reclassified from AOCI (Details) link:calculationLink link:definitionLink link:presentationLink 038 - Disclosure - Note 4 - Property and Equipment, Net (Details Textual) link:calculationLink link:definitionLink link:presentationLink 039 - Disclosure - Note 4 - Property and Equipment, Net - Property and Equipment, Net (Details) link:calculationLink link:definitionLink link:presentationLink 040 - Disclosure - Note 5 - Revenue from Contracts with Customers (Details Textual) link:calculationLink link:definitionLink link:presentationLink 041 - Disclosure - Note 5 - Revenue from Contracts with Customers - Expected Revenue from All Remaining Performance Obligations (Details) link:calculationLink link:definitionLink link:presentationLink 042 - Disclosure - Note 5 - Revenue from Contracts with Customers - Expected Revenue from All Remaining Performance Obligations 2 (Details) link:calculationLink link:definitionLink link:presentationLink 043 - Disclosure - Note 5 - Revenue from Contracts with Customers - Revenue by Sales Channel (Details) link:calculationLink link:definitionLink link:presentationLink 044 - Disclosure - Note 5 - Revenue from Contracts with Customers - Capitalized Cost to Obtain Contracts, Current and Noncurrent (Details) link:calculationLink link:definitionLink link:presentationLink 045 - Disclosure - Note 6 - Intangible Assets, Net (Details Textual) link:calculationLink link:definitionLink link:presentationLink 046 - Disclosure - Note 6 - Intangible Assets, Net - Carrying Value of Intangible Assets (Details) link:calculationLink link:definitionLink link:presentationLink 047 - Disclosure - Note 6 - Intangible Assets, Net - Expected Amortization Expense in Future Periods (Details) link:calculationLink link:definitionLink link:presentationLink 048 - Disclosure - Note 7 - Leases (Details Textual) link:calculationLink link:definitionLink link:presentationLink 049 - Disclosure - Note 7 - Leases - Supplemental Cash Flow Information (Details) link:calculationLink link:definitionLink link:presentationLink 050 - Disclosure - Note 7 - Leases - Weighted Average Remaining Lease Term and Weighted Average Discount Rate (Details) link:calculationLink link:definitionLink link:presentationLink 051 - Disclosure - Note 9 - Stockholders' Equity and Stock-based Compensation (Details Textual) link:calculationLink link:definitionLink link:presentationLink 052 - Disclosure - Note 9 - Stockholders' Equity and Stock-based Compensation - Summary of Stock-based Compensation Expense (Details) link:calculationLink link:definitionLink link:presentationLink 053 - Disclosure - Note 9 - Stockholders' Equity and Stock-based Compensation - Share-based Compensation and Stock Options Activity (Details) link:calculationLink link:definitionLink link:presentationLink 054 - Disclosure - Note 9 - Stockholders' Equity and Stock-based Compensation - Share-based Compensation, Restricted Stock and Restricted Stock Units (Details) link:calculationLink link:definitionLink link:presentationLink 055 - Disclosure - Note 10 - Net Income Per Share - Basic and Diluted Net Income Per Share (Details) link:calculationLink link:definitionLink link:presentationLink 056 - Disclosure - Note 10 - Net Income Per Share - Anti-dilutive Net Income Per Share (Details) link:calculationLink link:definitionLink link:presentationLink 057 - Disclosure - Note 11 - Income Taxes (Details Textual) link:calculationLink link:definitionLink link:presentationLink 058 - Disclosure - Note 12 - Segment Information and Information About Geographic Area (Details Textual) link:calculationLink link:definitionLink link:presentationLink 059 - Disclosure - Note 12 - Segment Information and Information About Geographic Area - Revenue and Property and Equipment, Net by Geographic Area (Details) link:calculationLink link:definitionLink link:presentationLink