SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014		Dec. 31, 2013
Reserve for Accounts Receivable [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning Balance	$ 464	$ 180		$ 287
Charge to Cost/Expense	53	309		(27)
Other Charge to Cost/Expense	0	0		0
Write-offs net of Recoveries	(271)	(25)		(80)
Ending Balance	246	464		180
Valuation Allowance of Deferred Tax Assets [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning Balance	12,676	18,137		261
Charge to Cost/Expense	1,965	0		17,876
Other Charge to Cost/Expense	0	(5,461)	[1]	0
Write-offs net of Recoveries	0	0		0
Ending Balance	$ 14,641	$ 12,676		$ 18,137

[1] Favorable impact of $5,461 resulted from the Company's decision to carry back the 2013 net operating tax loss to prior years.