Consolidated Balance Sheets (Parentheticals) (USD $) In Thousands, except Share data, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Trade accounts receivable, allowances (in Dollars)	$ 39	$ 43
Common stock par value (in Dollars per share)	$ 0.10	$ 0.10
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	7,006,310	6,895,085
Common stock, shares outstanding	7,006,310	6,895,085