SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Reserve for Accounts Receivable [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning Balance	$ 287	$ 359	$ 253
Charge to Cost/Expense	(27)	(140)	157
Other Charge to Cost/Expense	0	86	0
Write-offs net of Recoveries	(80)	(18)	(51)
Ending Balance	180	287	359
Valuation Allowance of Deferred Tax Assets [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning Balance	261	0	0
Charge to Cost/Expense	17,876	261	0
Other Charge to Cost/Expense	0	0	0
Write-offs net of Recoveries	0	0	0
Ending Balance	$ 18,137	$ 261	$ 0