CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Thousands, except Per Share data, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Common shares, par value	$ 0.10	$ 0.10
Common shares, authorized	10,000	10,000
Common shares, issued	3,420	3,420
Treasury shares, shares	1,410	1,404