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
Inventory Valuation Reserve [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning Period	$ 686	$ 710	$ 872
Charged to (Write-off) Costs and Expenses	2,066	134	30
Other Additions Or (Deductions)	(496)	(158)	(192)
Balance at End of Period	2,256	686	710
Allowance for Doubtful Accounts [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning Period	653	366	161
Charged to (Write-off) Costs and Expenses	482	432	275
Other Additions Or (Deductions)	(180)	(145)	(70)
Balance at End of Period	$ 955	$ 653	$ 366