ACCOUNTING POLICIES (Details) (USD $)	Sep. 30, 2012	Dec. 31, 2011
Cash equivalents
Cash equivalents	$ 48,100,000	$ 81,200,000
Restricted cash
Restricted cash	2,060,000	2,036,000
Total
Assets:
Cash equivalents - Money market mutual funds	48,129,000	81,159,000
Trading securities held in a rabbi trust	248,000	302,000
Total assets	48,377,000	81,461,000
Liabilities:
Restructuring Accrual	66,000
Deferred compensation accrual rabbi trust	244,000	302,000
Total liabilities	310,000	302,000
Level 1
Assets:
Cash equivalents - Money market mutual funds	48,129,000	81,159,000
Trading securities held in a rabbi trust	248,000	302,000
Total assets	48,377,000	81,461,000
Liabilities:
Deferred compensation accrual rabbi trust	244,000	302,000
Total liabilities	244,000	302,000
Level 3
Liabilities:
Restructuring Accrual	66,000
Total liabilities	$ 66,000