995300 - Document - Cover link:presentationLink link:calculationLink link:definitionLink 995301 - Document - Audit Information link:presentationLink link:calculationLink link:definitionLink 995302 - Disclosure - Cybersecurity Risk Management and Strategy Disclosure link:presentationLink link:calculationLink link:definitionLink 995303 - Statement - Balance Sheets link:presentationLink link:calculationLink link:definitionLink 995304 - Statement - Balance Sheets (Parentheticals) link:presentationLink link:calculationLink link:definitionLink 995305 - Statement - Statements of Comprehensive Income link:presentationLink link:calculationLink link:definitionLink 995306 - Statement - Statements of Changes in Stockholders' Equity link:presentationLink link:calculationLink link:definitionLink 995307 - Statement - Statements of Changes in Stockholders' Equity (Parentheticals) link:presentationLink link:calculationLink link:definitionLink 995308 - Statement - Statements of Cash Flows link:presentationLink link:calculationLink link:definitionLink 995309 - Disclosure - Nature of Operations link:presentationLink link:calculationLink link:definitionLink 995310 - Disclosure - Summary of Significant Accounting Policies link:presentationLink link:calculationLink link:definitionLink 995311 - Disclosure - Revenue link:presentationLink link:calculationLink link:definitionLink 995312 - Disclosure - Investment Securities link:presentationLink link:calculationLink link:definitionLink 995313 - Disclosure - Contracts in Process link:presentationLink link:calculationLink link:definitionLink 995314 - Disclosure - Property, Plant and Equipment link:presentationLink link:calculationLink link:definitionLink 995315 - Disclosure - Pension Expense link:presentationLink link:calculationLink link:definitionLink 995316 - Disclosure - Provision for Income Taxes link:presentationLink link:calculationLink link:definitionLink 995317 - Disclosure - Employee Stock Ownership Plan link:presentationLink link:calculationLink link:definitionLink 995318 - Disclosure - Stock-Based Compensation link:presentationLink link:calculationLink link:definitionLink 995319 - Disclosure - Concentration of Credit Risk link:presentationLink link:calculationLink link:definitionLink 995320 - Disclosure - Related Parties link:presentationLink link:calculationLink link:definitionLink 995321 - Disclosure - Commitments and Contingencies link:presentationLink link:calculationLink link:definitionLink 995322 - Disclosure - Stockholders' Equity link:presentationLink link:calculationLink link:definitionLink 995323 - Disclosure - Line of Credit link:presentationLink link:calculationLink link:definitionLink 995324 - Disclosure - Quarterly Financial Information (Unaudited) link:presentationLink link:calculationLink link:definitionLink 995325 - Disclosure - Segment Reporting link:presentationLink link:calculationLink link:definitionLink 995326 - Disclosure - Other Assets link:presentationLink link:calculationLink link:definitionLink 996327 - Disclosure - Summary of Significant Accounting Policies (Policies) link:presentationLink link:calculationLink link:definitionLink 996328 - Disclosure - Summary of Significant Accounting Policies (Tables) link:presentationLink link:calculationLink link:definitionLink 996329 - Disclosure - Investment Securities (Tables) link:presentationLink link:calculationLink link:definitionLink 996330 - Disclosure - Contracts in Process (Tables) link:presentationLink link:calculationLink link:definitionLink 996331 - Disclosure - Property, Plant and Equipment (Tables) link:presentationLink link:calculationLink link:definitionLink 996332 - Disclosure - Provision for Income Taxes (Tables) link:presentationLink link:calculationLink link:definitionLink 996333 - Disclosure - Employee Stock Ownership Plan (Tables) link:presentationLink link:calculationLink link:definitionLink 996334 - Disclosure - Stock-Based Compensation (Tables) link:presentationLink link:calculationLink link:definitionLink 996335 - Disclosure - Stockholders' Equity (Tables) link:presentationLink link:calculationLink link:definitionLink 996336 - Disclosure - Quarterly Financial Information (Unaudited) (Tables) link:presentationLink link:calculationLink link:definitionLink 996337 - Disclosure - Other Assets (Tables) link:presentationLink link:calculationLink link:definitionLink 996338 - Disclosure - Summary of Significant Accounting Policies (Details) link:presentationLink link:calculationLink link:definitionLink 996339 - Disclosure - Summary of Significant Accounting Policies - Schedule of Estimated Useful Lives of Depreciable Assets (Details) link:presentationLink link:calculationLink link:definitionLink 996340 - Disclosure - Revenue (Details) link:presentationLink link:calculationLink link:definitionLink 996341 - Disclosure - Investment Securities (Details) link:presentationLink link:calculationLink link:definitionLink 996342 - Disclosure - Investment Securities - Schedule of Cost, Gross Unrealized Gains, Gross Unrealized Losses and Fair Value of Available-For-Sale Debt Securities (Details) link:presentationLink link:calculationLink link:definitionLink 996343 - Disclosure - Investment Securities - Schedule of Contractual Maturities of Available-for-Sale Debt Securities (Details) link:presentationLink link:calculationLink link:definitionLink 996344 - Disclosure - Contracts in Process - Schedule of Contracts in Process (Details) link:presentationLink link:calculationLink link:definitionLink 996345 - Disclosure - Property, Plant and Equipment (Details) link:presentationLink link:calculationLink link:definitionLink 996346 - Disclosure - Property, Plant and Equipment - Schedule of Property, Plant and Equipment (Details) link:presentationLink link:calculationLink link:definitionLink 996347 - Disclosure - Pension Expense (Details) link:presentationLink link:calculationLink link:definitionLink 996348 - Disclosure - Provision for Income Taxes (Details) link:presentationLink link:calculationLink link:definitionLink 996349 - Disclosure - Provision for Income Taxes - Schedule of Components of the Provision for Income Taxes (Details) link:presentationLink link:calculationLink link:definitionLink 996350 - Disclosure - Provision for Income Taxes - Schedule of Effective Income Tax Rates (Details) link:presentationLink link:calculationLink link:definitionLink 996351 - Disclosure - Provision for Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 996352 - Disclosure - Employee Stock Ownership Plan (Details) link:presentationLink link:calculationLink link:definitionLink 996353 - Disclosure - Employee Stock Ownership Plan - Schedule of ESOP Shares (Details) link:presentationLink link:calculationLink link:definitionLink 996354 - Disclosure - Stock-Based Compensation (Details) link:presentationLink link:calculationLink link:definitionLink 996355 - Disclosure - Stock-Based Compensation - Schedule of Weighted Average Assumptions of Option Award (Details) link:presentationLink link:calculationLink link:definitionLink 996356 - Disclosure - Stock-Based Compensation - Schedule of Stock Option Activity (Details) link:presentationLink link:calculationLink link:definitionLink 996357 - Disclosure - Stock-Based Compensation - Schedule of Changes in Non-Vested Stock Options (Details) link:presentationLink link:calculationLink link:definitionLink 996358 - Disclosure - Concentration of Credit Risk (Details) link:presentationLink link:calculationLink link:definitionLink 996359 - Disclosure - Commitments and Contingencies (Details) link:presentationLink link:calculationLink link:definitionLink 996360 - Disclosure - Stockholders' Equity (Details) link:presentationLink link:calculationLink link:definitionLink 996361 - Disclosure - Stockholders' Equity - Schedule of Reserved Common Shares for Future Issuance (Details) link:presentationLink link:calculationLink link:definitionLink 996362 - Disclosure - Stockholders' Equity - Schedule of Reconciliation of the Numerators and Denominators of the Basic and Diluted Earnings Per Share Computations (Details) link:presentationLink link:calculationLink link:definitionLink 996363 - Disclosure - Line of Credit (Details) link:presentationLink link:calculationLink link:definitionLink 996364 - Disclosure - Quarterly Financial Information (Unaudited) - Schedule of Quarterly Financial Information (Details) link:presentationLink link:calculationLink link:definitionLink 996365 - Disclosure - Segment Reporting (Details) link:presentationLink link:calculationLink link:definitionLink 996366 - Disclosure - Other Assets - Schedule of Prepaid Expenses and Other Current Assets (Details) link:presentationLink link:calculationLink link:definitionLink