SIGNIFICANT ACCOUNTING POLICIES (Tables)

12 Months Ended

Dec. 31, 2014

SIGNIFICANT ACCOUNTING POLICIES [Abstract]

Components of inventories

The components of inventories are:

	December 31,
	2014			2013
	(Amounts in Thousands)
Raw materials	$	6,457		$	5,803
Finished goods		14,714			9,101
Inventory reserves		(618	)		(534	)
LIFO reserve		(4,672	)		(4,366	)
	$	15,881		$	10,004

Summary of the changes in asset retirement obligation

A summary of the changes in asset retirement obligation is included in the table below (amounts in thousands):

Asset retirement obligation at January 1, 2013	$	651
Accretion expense		30
Asset retirement obligation at December 31, 2013		681
Accretion expense		31
Asset retirement obligation at December 31, 2014	$	712

Total compensation expense included in Consolidated Statements of Operations

The following table shows total compensation expense (see Note 9 for descriptions of Stock Incentive Plans) included in the Consolidated Statements of Operations for the years ended December 31 (amounts in thousands):

	2014		2013
Stock appreciation right expense (income)	$	27	$	(13	)

Assumptions for expected term, volatility and risk-free rate

The assumptions for expected term, volatility and risk-free rate are presented in the table below:

	December 31,
	2014			2013
Expected term (years)		1.7- 4.7			0.1- 4.7
Volatility		229.9% - 338.9	%		302.2% - 368.3	%
Risk-free interest rate		0.5% - 1.6	%		0.1% - 1.6	%