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Note 5 - Property and Equipment (Detail) - Property and Equipment, at Cost (USD $) In Thousands, unless otherwise specified |  |  | 24 Months Ended |  |  | 24 Months Ended |  |  | 24 Months Ended |  |  | 24 Months Ended |  |  |  |  | 24 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2012 Equipment [Member] Minimum [Member] | Dec. 31, 2012 Equipment [Member] Maximum [Member] | Dec. 31, 2012 Equipment [Member] | Dec. 31, 2011 Equipment [Member] | Dec. 31, 2012 Office Equipment [Member] Minimum [Member] | Dec. 31, 2012 Office Equipment [Member] Maximum [Member] | Dec. 31, 2012 Office Equipment [Member] | Dec. 31, 2011 Office Equipment [Member] | Dec. 31, 2012 Land and Land Improvements [Member] Minimum [Member] | Dec. 31, 2012 Land and Land Improvements [Member] Maximum [Member] | Dec. 31, 2012 Land and Land Improvements [Member] | Dec. 31, 2011 Land and Land Improvements [Member] | Dec. 31, 2012 Building and Building Improvements [Member] Minimum [Member] | Dec. 31, 2012 Building and Building Improvements [Member] Maximum [Member] | Dec. 31, 2012 Building and Building Improvements [Member] | Dec. 31, 2011 Building and Building Improvements [Member] | Dec. 31, 2012 Construction in Progress [Member] | Dec. 31, 2011 Construction in Progress [Member] | Dec. 31, 2012 Property, Plant and Equipment, Other Types [Member] Minimum [Member] | Dec. 31, 2012 Property, Plant and Equipment, Other Types [Member] Maximum [Member] | Dec. 31, 2012 Property, Plant and Equipment, Other Types [Member] | Dec. 31, 2011 Property, Plant and Equipment, Other Types [Member]
Estimated Useful Lives |  |  | 3 years | 10 years |  |  | 5 years | 10 years |  |  | 0 years | 10 years |  |  | 7 years | 40 years |  |  |  |  | 2 years | 7 years |  |
Property and equipment, at cost | $ 419,947 | $ 440,051 |  |  | $ 331,761 | $ 351,433 |  |  | $ 13,089 | $ 12,706 |  |  | $ 16,658 | $ 18,910 |  |  | $ 41,050 | $ 39,025 | $ 1,310 | $ 1,221 |  |  | $ 16,079 | $ 16,756

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- Definition Gross amount of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 5 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.13) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_PropertyPlantAndEquipmentGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details
Name: | us-gaap_PropertyPlantAndEquipmentUsefulLife
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration