Revenue Recognition  The Company recognizes revenue when the following criteria are met: (1) persuasive evidence of an agreement exists, (2)delivery has occurred or services have been rendered, (3)the price to the buyer is fixed and determinable, and (4)collectability is reasonably assured. Delivery is not considered to have occurred until the customer takes title and assumes the risks and rewards of ownership. Revenue from the sale of lumber, MDF, and wood by-products is recorded at the time of shipment due to terms of such sale being designated free on board (f.o.b.) shipping point. Revenue from consignment sales is recorded when the customer assumes ownership of the product. Revenue from the sale of timber-cutting rights to third parties is recorded when legal title passes to the purchaser, which is generally upon delivery of a legally executed timber deed and receipt of payment for the timber. Revenue from intersegment timber sales is recorded when the timber is harvested; such intersegment sales, which are made at prices which generally approximate market within Deltics operating area, are eliminated in the consolidated financial statements. Revenue from the leasing of land for hunting purposes is deferred when received and subsequently recognized over the one-year lease term, which begins September1 of each year. At December31, 2016 and 2015, the Company had deferred hunting lease revenue totaling $2,131,000 and $2,060,000, respectively, reflected in the consolidated balance sheets in deferred revenues and other accrued liabilities. Revenue from mineral lease rental payments is deferred when received and recognized ratably over the lease term. At December31, 2016 and 2015, the Company had deferred mineral lease revenue of $168,000 and $446,000, respectively, of which $36,000 and $115,000 were included in other noncurrent liabilities for 2016 and 2015, respectively, and $132,000 and $331,000 were included in other current liabilities, respectively. Mineral royalty payments are recognized when re