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INVENTORIES | 12 Months Ended
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Dec. 31, 2016
INVENTORIES [Abstract] |
INVENTORIES | Note 3, Inventories: Inventories are measured using the last-in, first-out (LIFO) method of valuation because it results in a better matching of current costs and revenues. The excess of current costs over our carrying value of inventories was approximately $17,946,000 and $19,394,000 at December 31, 2016 and 2015, respectively. The use of the LIFO valuation method as compared to the FIFO method had a positive impact on our cost of goods sold of approximately $1,448,000 in 2016 and a negative impact of approximately $438,000 in 2015 and $219,000 in 2014. During 2016 and 2015, inventory quantities declined resulting in liquidations of LIFO inventory layers. The effect of the liquidations (included in the preceding LIFO impact amounts) decreased cost of goods sold by an immaterial amount in each of the years. We believe this information is meaningful to the users of these consolidated financial statements for analyzing the effects of price changes, for better understanding our financial position and for comparing such effects with other companies.

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- Definition The entire disclosure for inventory. Includes, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the classes of inventory, and the nature of the cost elements included in inventory. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.6) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6361739&loc=d3e7789-107766 + Details
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