BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Allowance for Doubtful Accounts (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Accounts receivable percentage not attained by individual customer		10.00%
Allowance for doubtful accounts - beginning of year		$ 1,517	$ 2,401	$ 2,928
Additions to the allowance	157	125	1,473
Deductions against the allowance	(230)	(1,009)	(2,000)
Allowance for doubtful accounts - end of year	$ 1,444	$ 1,517	$ 2,401