CONSOLIDATED BALANCE SHEETS (Parentheticals) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Allowance for doubtful accounts	$ 100	$ 100
Common stock, par value	$ 0.0033	$ 0.0033
Common stock, shares authorized	20,000,000	20,000,000
Common stock, shares issued	8,049,622	8,049,622
Common stock, shares outstanding	7,964,606	7,956,410
Treasury stock, shares	85,016	93,212