CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Thousands, except Share data	Jun. 30, 2011	Dec. 31, 2010
CONDENSED CONSOLIDATED BALANCE SHEETS
Trade accounts receivable, allowance (in dollars)	$ 42	$ 42
Property and equipment, accumulated depreciation (in dollars)	$ 2,486	$ 2,369
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	25,000,000	25,000,000
Common stock, shares issued	2,768,708	2,768,708
Common stock, shares outstanding	2,226,553	2,211,553
Treasury stock, shares	542,155	557,155