SCHEDULE II - VALUATION ACCOUNTS (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Accounts receivable, allowance for doubtful accounts
Valuation accounts
Balance at Beginning of Period	$ 980	$ 477	$ 423
Additions Charged (Credited) to Expense	(30)	503	350
Net (Deductions) Recoveries	(654)		(296)
Balance at End of Period	296	980	477
Notes receivable, allowance for doubtful accounts
Valuation accounts
Balance at Beginning of Period	654	840
Additions Charged (Credited) to Expense			940
Net (Deductions) Recoveries	(654)	(186)	(100)
Balance at End of Period		$ 654	$ 840