CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
CURRENT ASSETS:
Accounts receivable, allowance for doubtful accounts	$ 2,205	$ 1,064
SHAREHOLDERS' EQUITY:
Preferred stock, par value (in dollars per share)	$ 1.00	$ 1.00
Preferred stock, shares authorized (in shares)	960,000	960,000
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.10	$ 0.10
Common stock, shares authorized (in shares)	7,500,000	7,500,000
Common stock, shares Issued (in shares)	4,217,596	4,217,596
Common stock, shares Outstanding (in shares)	4,217,596	4,217,596