XML 47 R72.htm IDEA: XBRL DOCUMENT v2.4.0.6
SCHEDULE OF VALUATION AND QUALIFYING ACCOUNTS (Details) (Allowance for Doubtful Accounts [Member], USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Allowance for Doubtful Accounts [Member]
   
Balance at Beginning of Period $ 186 $ 168
Charged to Costs and Expenses 0 40
Deductions 186 [1] 22 [1]
Other 0 0
Balance at End of Period $ 0 $ 186
[1] Deductions represents allowance amounts written off as uncollectible and recoveries of previously reserved amounts.