XML 52 R38.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Note 9 - Financial Instruments and Fair Value (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2017
Notes Tables |
Fair Value, Assets Measured on Recurring Basis [Table Text Block] |
|  | At December 31, 201 7 |  |  | At December 31, 201 6 |
|  | Level 1 Inputs |  |  | Level 2 Inputs |  |  | Level 3 Inputs |  |  | Level 1 Inputs |  |  | Level 2 Inputs |  |  | Level 3 Inputs |
Investment in auction rate securities |  | $ | ─ |  |  | $ | ─ |  |  | $ | 6,375 |  |  | $ | ─ |  |  | $ | ─ |  |  | $ | 6,231 |
Schedule of Available-for-sale Securities Reconciliation [Table Text Block] |
|  | C ost Basis Amount |  |  | Gross Unrealized Loss In Accumulated OCI |  |  | Fair Value |
December 31, 201 7 |  |  |  |  |  |  |  |  |  |  |  |
Investment in auction rate securities |  | $ | 6,375 |  |  | $ | - |  |  | $ | 6,375 |
December 31, 201 6 |  |  |  |  |  |  |  |  |  |  |  |
Investment in auction rate securities |  | $ | 6,700 |  |  | $ | 469 |  |  | $ | 6,231 |
Schedule of Derivative Instruments, Effect on Other Comprehensive Income (Loss) [Table Text Block] |
Description |  | Fair Value Measurements Using Significant Unobservable Inputs December 31 , 201 7 |  |  | Loss D uring the Year Ended December 31, 2017 |  |  | Loss D uring the Year Ended December 31, 2016 |
Long-lived assets held for sale |  | $ | 9,505 |  |  | $ | − |  |  | $ | (7,481 | )

X
- Definition Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19190-110258 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 + Details
Name: | us-gaap_FairValueAssetsMeasuredOnRecurringBasisTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the reconciliation of available-for-sale securities from cost basis to fair value. + References No definition available. + Details
Name: | us-gaap_ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the effective portion of the gains and losses on derivative instruments designated (and non-derivative instruments) designated and qualifying in cash flow hedges and net investment hedges that was recognized in other comprehensive income (loss) during the current period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959 + Details
Name: | us-gaap_ScheduleOfDerivativeInstrumentsEffectOnOtherComprehensiveIncomeLossTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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