XML 45 R32.htm IDEA: XBRL DOCUMENT
v3.6.0.2

Cash Equivalents And Restricted Cash And Securities (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2016
Cash Equivalents And Restricted Cash And Securities [Abstract] |
Summary Of Cash Equivalents And Restricted Cash And Securities |
﻿ |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |
﻿ |  |  |  | Unrealized |  | Estimated
﻿ |  |  |  | Holding |  | Market
﻿December 31, 2016 | Cost Basis |  | Gains (Losses) |  | Value
﻿Cash equivalents: |  |  |  |  |  |  |  |
﻿Money market funds | $ | 3,466 |  | $ | -- |  | $ | 3,466
﻿Restricted securities: |  |  |  |  |  |  |  |
﻿Money market funds |  | 699 |  |  | -- |  |  | 699
﻿ |  |  |  |  |  |  |  |
﻿ |  |  |  | Unrealized |  | Estimated
﻿ |  |  |  | Holding |  | Market
﻿December 31, 2015 | Cost Basis |  | Gains (Losses) |  | Value
﻿Cash equivalents: |  |  |  |  |  |  |  |
﻿Money market funds | $ | 549 |  | $ | -- |  | $ | 549
﻿Restricted cash and securities: |  |  |  |  |  |  |  |
﻿Cash |  | 5,000 |  |  | -- |  |  | 5,000
﻿Money market funds |  | 830 |  |  | -- |  |  | 830
﻿

X
- References No definition available. + Details
Name: | us-gaap_CashAndCashEquivalentsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the components of cash, cash equivalents, and investments. + References No definition available. + Details
Name: | us-gaap_ScheduleOfCashCashEquivalentsAndShortTermInvestmentsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration