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SIGNIFICANT ACCOUNTING POLICIES (Policies)	6 Months Ended
SIGNIFICANT ACCOUNTING POLICIES (Policies)	Jun. 28, 2014
SIGNIFICANT ACCOUNTING POLICIES [Abstract]
Organization	Organization: Sturm, Ruger & Company, Inc. (the “Company”) is principally engaged in the design, manufacture, and sale of firearms to domestic customers. Approximately 99.6% of the Company's total sales for the three and six months ended June 28, 2014 were firearms sales, and approximately 0.4% were investment castings sales. Export sales represent approximately 5% of total sales. The Company's design and manufacturing operations are located in the United States and almost all product content is domestic. The Company's firearms are sold through a select number of independent wholesale distributors principally to the commercial sporting market. The Company manufactures investment castings made from steel alloys for internal use in its firearms and utilizes available investment casting capacity to manufacture and sell castings to unaffiliated, third-party customers.
Fair Value of Financial Instruments	Fair Value of Financial Instruments: The carrying amounts of financial instruments, including cash, accounts receivable, accounts payable and accrued liabilities, approximate fair value due to the short-term maturity of these items.
Use of Estimates	Use of Estimates: The preparation of financial statements in conformity with generally accepted accounting principles requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ from those estimates.