Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Consolidated Balance Sheets [Abstract]
Receivables, allowance for doubtful accounts	$ 519	$ 141
Common stock, par value	$ 1	$ 1
Common stock, shares authorized	20,000	20,000
Common stock, shares issued	10,346	10,326
Common stock, shares outstanding	10,346	10,326