101 - Document - Document and Entity Information link:calculationLink link:presentationLink link:definitionLink 103 - Statement - Consolidated Balance Sheets link:calculationLink link:presentationLink link:definitionLink 104 - Statement - Consolidated Balance Sheets (Parenthetical) link:calculationLink link:presentationLink link:definitionLink 105 - Statement - Consolidated Statements of Income link:calculationLink link:presentationLink link:definitionLink 106 - Statement - Consolidated Statements of Comprehensive Income link:calculationLink link:presentationLink link:definitionLink 107 - Statement - Consolidated Statements of Stockholders' Equity link:calculationLink link:presentationLink link:definitionLink 108 - Statement - Consolidated Statements of Stockholders' Equity (Parenthetical) link:calculationLink link:presentationLink link:definitionLink 109 - Statement - Consolidated Statements of Cash Flows link:calculationLink link:presentationLink link:definitionLink 110 - Disclosure - Description of the Company and Basis of Presentation link:calculationLink link:presentationLink link:definitionLink 111 - Disclosure - Summary of Significant Accounting Policies link:calculationLink link:presentationLink link:definitionLink 112 - Disclosure - Marketable Securities link:calculationLink link:presentationLink link:definitionLink 113 - Disclosure - Receivables link:calculationLink link:presentationLink link:definitionLink 114 - Disclosure - Prepaid Expenses and Other Current Assets link:calculationLink link:presentationLink link:definitionLink 115 - Disclosure - Property and Equipment link:calculationLink link:presentationLink link:definitionLink 116 - Disclosure - Accrued Expenses link:calculationLink link:presentationLink link:definitionLink 117 - Disclosure - Line of Credit link:calculationLink link:presentationLink link:definitionLink 118 - Disclosure - Leases link:calculationLink link:presentationLink link:definitionLink 119 - Disclosure - Commitments and Contingencies link:calculationLink link:presentationLink link:definitionLink 120 - Disclosure - Fair Value Measurements link:calculationLink link:presentationLink link:definitionLink 121 - Disclosure - Stock-Based Compensation link:calculationLink link:presentationLink link:definitionLink 122 - Disclosure - Retirement Savings Plan link:calculationLink link:presentationLink link:definitionLink 123 - Disclosure - Income Taxes link:calculationLink link:presentationLink link:definitionLink 124 - Disclosure - Earnings Per Share link:calculationLink link:presentationLink link:definitionLink 125 - Disclosure - Related Parties link:calculationLink link:presentationLink link:definitionLink 126 - Disclosure - Quarterly Financial Information link:calculationLink link:presentationLink link:definitionLink 127 - Disclosure - Summary of Significant Accounting Policies (Policies) link:calculationLink link:presentationLink link:definitionLink 128 - Disclosure - Summary of Significant Accounting Policies (Tables) link:calculationLink link:presentationLink link:definitionLink 129 - Disclosure - 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Earnings Per Share (Tables) link:calculationLink link:presentationLink link:definitionLink 139 - Disclosure - Quarterly Financial Information (Tables) link:calculationLink link:presentationLink link:definitionLink 140 - Disclosure - Description of Company and Basis of Presentation - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 141 - Disclosure - Summary of Significant Accounting Policies - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 142 - Disclosure - Sales Return Accrual Activity (Detail) link:calculationLink link:presentationLink link:definitionLink 143 - Disclosure - Investments In Marketable Securities (Detail) link:calculationLink link:presentationLink link:definitionLink 144 - Disclosure - Components of Receivables (Detail) link:calculationLink link:presentationLink link:definitionLink 145 - Disclosure - Components of Prepaid Expenses and Other Current Assets (Detail) link:calculationLink link:presentationLink link:definitionLink 146 - Disclosure - Schedule of Property and Equipment (Detail) link:calculationLink link:presentationLink link:definitionLink 147 - Disclosure - Property and Equipment - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 148 - Disclosure - Components of Accrued Expenses (Detail) link:calculationLink link:presentationLink link:definitionLink 149 - Disclosure - Line of Credit - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 150 - Disclosure - Leases - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 151 - Disclosure - Future Minimum Operating Rental Commitments (Detail) link:calculationLink link:presentationLink link:definitionLink 152 - Disclosure - Rent Expense Under Operating Leases (Detail) link:calculationLink link:presentationLink link:definitionLink 153 - Disclosure - Future Commitments under Related Party Capital Lease Obligation (Detail) link:calculationLink link:presentationLink link:definitionLink 154 - Disclosure - Financial Assets Categorized Based on Priority of Inputs to Valuation Technique Instruments (Detail) link:calculationLink link:presentationLink link:definitionLink 155 - Disclosure - Fair Value Measurements - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 156 - Disclosure - Stock Based Compensation - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 157 - Disclosure - Assumptions Used to Estimate Fair Value of Stock Options Granted (Detail) link:calculationLink link:presentationLink link:definitionLink 158 - Disclosure - Stock Option Activity Under Stock Option Plan (Detail) link:calculationLink link:presentationLink link:definitionLink 159 - Disclosure - Stock Option Activity Under Stock Option Plan (Parenthetical) (Detail) link:calculationLink link:presentationLink link:definitionLink 160 - Disclosure - Summary of Status of Non-Vested Stock Options (Detail) link:calculationLink link:presentationLink link:definitionLink 161 - Disclosure - Retirement Savings Plan - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 162 - Disclosure - Income Taxes - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 163 - Disclosure - Components of Income Tax Expense (Detail) link:calculationLink link:presentationLink link:definitionLink 164 - Disclosure - Reconciliation of Income Tax Expense to the Amount Computed at Federal Statutory Rate (Detail) link:calculationLink link:presentationLink link:definitionLink 165 - Disclosure - Significant Components of Deferred Tax Assets and Liabilities (Detail) link:calculationLink link:presentationLink link:definitionLink 166 - Disclosure - Components of Basic and Diluted Net Income (Loss) Per Share (Detail) link:calculationLink link:presentationLink link:definitionLink 167 - Disclosure - Net Income (Loss) Per Share - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 168 - Disclosure - Selected Quarterly Financial Data (Detail) link:calculationLink link:presentationLink link:definitionLink 169 - Disclosure - Selected Quarterly Financial Data (Parenthetical) (Detail) link:calculationLink link:presentationLink link:definitionLink