Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2014

Estimated Lives Used in Determining Depreciation and Amortization

The estimated lives used in determining depreciation and amortization are:

Buildings and improvements	12 - 40 years
Warehouse and office equipment	5 - 7 years
Automobiles	3 - 5 years

Summary of Fair Value Measurement of Financial Assets

The following tables summarize the fair value measurements (in thousands of dollars) of our financial assets:

	At December 31, 2014
	Total		Quoted Market prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)
Cash equivalents – Overnight Investments	$	—	$	—	$	—
			At December 31, 2013
	Total		Quoted Market prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)
Cash equivalents – Overnight Investments	$	1,623	$	—	$	1,623