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of Deposit, at Carrying Value","description":"A savings certificate entitling the Entity (that is, bearer) to receive interest at an established maturity date, based upon a fixed interest rate. A certificate of deposit may be issued in any denomination. Certificates of deposit are generally issued by commercial banks and, therefore, insured by the FDIC (up to the prescribed limit). Certificates of deposit generally restrict holders from withdrawing funds on demand without the incurrence of penalties. Generally, only certificates of deposit with original maturities of three months or less qualify as cash equivalents. Original maturity means original maturity to the entity holding the investment. As a related example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three-years ago does not become a cash equivalent when its remaining maturity is three months.","units":{"USD":[{"end":"2014-12-31","val":7250000,"accn":"0000216085-16-000043","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-04","frame":"CY2014Q4I"},{"end":"2015-12-31","val":2750000,"accn":"0000216085-16-000043","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-04","frame":"CY2015Q4I"}]}},"CommercialPaperAtCarryingValue":{"label":"Commercial Paper, at Carrying Value","description":"Unsecured short-term debt instrument issued by corporations which are highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three-years ago does not become a cash equivalent when its remaining maturity is three months.","units":{"USD":[{"end":"2015-12-31","val":9975000,"accn":"0000216085-16-000043","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-04"},{"end":"2015-12-31","val":10000000,"accn":"0000216085-16-000051","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-04"},{"end":"2015-12-31","val":10000000,"accn":"0000216085-16-000059","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-03"},{"end":"2015-12-31","val":10000000,"accn":"0000216085-16-000063","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-02","frame":"CY2015Q4I"},{"end":"2016-03-31","val":10000000,"accn":"0000216085-16-000051","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-04","frame":"CY2016Q1I"}]}},"CommitmentsAndContingencies":{"label":"Commitments and Contingencies","description":"Represents the caption on the face of the balance sheet to indicate that the entity has entered into (1) purchase or supply arrangements that will require expending a portion of its resources to meet the terms thereof, and (2) is exposed to potential losses or, less frequently, gains, arising from (a) possible claims against a company's resources due to future performance under contract terms, and (b) possible losses or likely gains from uncertainties that will ultimately be resolved when one or more future events that are deemed likely to occur do occur or fail to 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Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. 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