3. Allowance for Doubtful Accounts (Tables)

12 Months Ended

Dec. 31, 2012

Allowance For Doubtful Accounts Tables

Schedule of Allowance for Doubtful Accounts

	Years Ended December 31,
	2012			2011		2010
Balance, beginning of year	$	44		$	44	$	44
Provision for doubtful accounts		-			-		17
Uncollectible accounts written off		(5	)		-		(17	)
Balance, end of year	$	39		$	44	$	44