XML 81 R68.htm IDEA: XBRL DOCUMENT v3.3.1.900
VALUATION AND QUALIFYING ACCOUNTS (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Allowance for doubtful accounts      
Movement in Valuation Allowances and Reserves [Roll Forward]      
Balance at Beginning of Period $ 25 $ 25 $ 22
Charged to Costs and Expenses
Net (Write-Offs)/ Recoveries $ 3
Balance at End of Period $ 25 $ 25 25
Deferred tax asset valuation allowance      
Movement in Valuation Allowances and Reserves [Roll Forward]      
Balance at Beginning of Period 4,401 4,359 4,155
Charged to Costs and Expenses $ 293 $ 42 $ 204
Net (Write-Offs)/ Recoveries
Balance at End of Period $ 4,694 $ 4,401 $ 4,359