Consolidated Balance Sheets (Parentheticals) (USD $) In Thousands, except Share data, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Allowances for accounts receivable (in Dollars) (in Dollars)	$ 654	$ 1,051
Common stock par value (in Dollars per share) (in Dollars per share)	$ 0.02	$ 0.02
Common stock, shares authorized	25,000,000	25,000,000
Common stock, shares issued	14,566,099	14,524,015
Common stock, shares outstanding	14,566,099	14,524,015