SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
|
| Allowance For Doubtful Accounts [Member] | |||
| Changes in valuation and qualifying accounts | |||
| Balance at Beginning of Period | $ 234 | $ 352 | $ 395 |
| Charges to Costs and Expenses | 174 | (100) | 49 |
| Additions/(Deductions) | 7 | (18) | (92) |
| Balance at End of Period | 415 | 234 | 352 |
| Valuation Allowance Of Deferred Tax Assets [Member] | |||
| Changes in valuation and qualifying accounts | |||
| Balance at Beginning of Period | 5,694 | 6,294 | 5,039 |
| Charges to Costs and Expenses | (171) | 150 | 997 |
| Additions/(Deductions) | (377) | (750) | 258 |
| Balance at End of Period | $ 5,146 | $ 5,694 | $ 6,294 |