Condensed Consolidated Balance Sheet (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Condensed Consolidated Balance Sheet [Abstract]
Trade receivables, allowance for doubtful accounts	$ 17	$ 9
Common stock, par value	$ 0.10	$ 0.10
Common stock, shares authorized	10,000,000	10,000,000
Common stock, shares issued	3,390,785	3,389,577
Common stock, shares outstanding	3,390,785	3,389,577