001000 - Statement - CONDENSED BALANCE SHEETS (Unaudited) link:presentationLink link:calculationLink link:definitionLink 001010 - Statement - CONDENSED BALANCE SHEETS (Unaudited) Parenthetical link:presentationLink link:calculationLink link:definitionLink 002000 - Statement - CONDENSED STATEMENTS OF OPERATIONS (Unaudited) link:presentationLink link:calculationLink link:definitionLink 003000 - Statement - CONDENSED STATEMENTS OF STOCKHOLDERS' EQUITY (Unaudited) link:presentationLink link:calculationLink link:definitionLink 004000 - Statement - CONDENSED STATEMENTS OF CASH FLOWS (Unaudited) link:presentationLink link:calculationLink link:definitionLink 006010 - Disclosure - Interim Financial Statements link:presentationLink link:calculationLink link:definitionLink 006020 - Disclosure - ARCALYST (rilonacept) Product Revenue link:presentationLink link:calculationLink link:definitionLink 009020 - Disclosure - ARCALYST (rilonacept) Product Revenue (Details) link:presentationLink link:calculationLink link:definitionLink 007020 - Disclosure - ARCALYST (rilonacept) Product Revenue (Policies) link:presentationLink link:calculationLink link:definitionLink 006030 - Disclosure - Per Share Data link:presentationLink link:calculationLink link:definitionLink 009030 - Disclosure - Per Share Data (Details) link:presentationLink link:calculationLink link:definitionLink 008030 - Disclosure - Per Share Data (Tables) link:presentationLink link:calculationLink link:definitionLink 006040 - Disclosure - Statement of Cash Flows link:presentationLink link:calculationLink link:definitionLink 009040 - Disclosure - Statement of Cash Flows (Details) link:presentationLink link:calculationLink link:definitionLink 006050 - Disclosure - Marketable Securities link:presentationLink link:calculationLink link:definitionLink 009050 - Disclosure - Marketable Securities (Details) link:presentationLink link:calculationLink link:definitionLink 008050 - Disclosure - Marketable Securities (Tables) link:presentationLink link:calculationLink link:definitionLink 006060 - Disclosure - Inventory link:presentationLink link:calculationLink link:definitionLink 009060 - Disclosure - Inventory (Details) link:presentationLink link:calculationLink link:definitionLink 008060 - Disclosure - Inventory (Tables) link:presentationLink link:calculationLink link:definitionLink 006070 - Disclosure - Accounts Payable and Accrued Expenses link:presentationLink link:calculationLink link:definitionLink 009070 - Disclosure - Accounts Payable and Accrued Expenses (Details) link:presentationLink link:calculationLink link:definitionLink 008070 - Disclosure - Accounts Payable and Accrued Expenses (Tables) link:presentationLink link:calculationLink link:definitionLink 006080 - Disclosure - Comprehensive Loss link:presentationLink link:calculationLink link:definitionLink 009080 - Disclosure - Comprehensive Loss (Details) link:presentationLink link:calculationLink link:definitionLink 008080 - Disclosure - Comprehensive Loss (Tables) link:presentationLink link:calculationLink link:definitionLink 006090 - Disclosure - Income Taxes link:presentationLink link:calculationLink link:definitionLink 009090 - Disclosure - Income Taxes (Details) link:presentationLink link:calculationLink link:definitionLink 006100 - Disclosure - Legal Matters link:presentationLink link:calculationLink link:definitionLink 006110 - Disclosure - Recently Issued Accounting Standards link:presentationLink link:calculationLink link:definitionLink 009110 - Disclosure - Recently Issued Accounting Standards (Details) link:presentationLink link:calculationLink link:definitionLink 000990 - Document - Document And Entity Information link:presentationLink link:calculationLink link:definitionLink 003010 - Statement - PARENTHETICAL DISCLOSURE TO THE CONDENSED STATEMENTS OF STOCKHOLDERS' EQUITY (Unaudited) link:presentationLink link:calculationLink link:definitionLink 007050 - Disclosure - Marketable Securities (Policies) link:presentationLink link:calculationLink link:definitionLink