Condensed Consolidated Balance Sheets (unaudited) (Parentheticals) (USD $) In Thousands, except Share data, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Trade accounts receivable, allowances (in Dollars)	$ 48	$ 39
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	6,996,146	7,006,310
Common stock, shares outstanding	6,996,146	7,006,310