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Investments	3 Months Ended
	Mar. 31, 2016
Investments [Abstract]
Investments	NOTE E - Investments Investments consist of commercial paper and certificates of deposit.  The commercial paper totaled approximately $10.0 million at March 31, 2016 and December 31, 2015 with original maturities of more than three months but less than six months.  Certificates of deposit had original maturities of greater than three months.  The fair values of the investments approximate their carrying amounts.

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- Definition

The entire disclosure for investments, including all tables.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 6
-Section 10
-Paragraph (c)
-Subparagraph (1)

+ Details

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- References

No definition available.

+ Details

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