CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
ASSETS
Valuation allowance	$ 51,912	$ 53,400
EQUITY
Common stock, shares authorized (in shares)	90,000,000	90,000,000
Common stock, no par value (in dollars per share)	$ 0	$ 0
Common stock, shares issued (in shares)	16,346,247	16,217,019
Common stock, shares outstanding (in shares)	16,260,259	16,145,772
Treasury stock, at cost	85,988	71,247