Annual report pursuant to Section 13 and 15(d)

Schedule II. Valuation & Qualifying Accounts (Details)

v2.4.1.9
Schedule II. Valuation & Qualifying Accounts (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Allowance for Doubtful Accounts Receivable [Roll Forward]      
Balance at beginning of year $ 20us-gaap_AllowanceForDoubtfulAccountsReceivable $ 62us-gaap_AllowanceForDoubtfulAccountsReceivable $ 0us-gaap_AllowanceForDoubtfulAccountsReceivable
Write-offs and other adjustments (8)us-gaap_AllowanceForDoubtfulAccountsReceivableWriteOffs (25)us-gaap_AllowanceForDoubtfulAccountsReceivableWriteOffs 0us-gaap_AllowanceForDoubtfulAccountsReceivableWriteOffs
Recoveries 0us-gaap_AllowanceForDoubtfulAccountsReceivableRecoveries 0us-gaap_AllowanceForDoubtfulAccountsReceivableRecoveries 0us-gaap_AllowanceForDoubtfulAccountsReceivableRecoveries
Change in provision 43us-gaap_ProvisionForDoubtfulAccounts (17)us-gaap_ProvisionForDoubtfulAccounts 62us-gaap_ProvisionForDoubtfulAccounts
Balance at end of year $ 55us-gaap_AllowanceForDoubtfulAccountsReceivable $ 20us-gaap_AllowanceForDoubtfulAccountsReceivable $ 62us-gaap_AllowanceForDoubtfulAccountsReceivable