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Note 12 - Geographic Long-Lived Assets Information: Schedule Of Long-Lived Assets By Geographic Area (Details) - USD ($) $ in Thousands | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | --- | ---
Details |  |  |
Long-lived assets in the United States | $ 10,309 | $ 10,866 | $ 11,151
Long-lived assets in England | 24,892 | 28,604 | 26,710
Long-lived assets in Ireland | 2,543 | 2,803 | 2,614
Long-lived assets in Australia | 447 | 525 | 513
Long-lived assets in Canada | $ 676 | $ 759 | $ 729

X
- Definition Represents the monetary amount of Long-lived assets in Australia, as of the indicated date. + References No definition available. + Details
Name: | fil_LongLivedAssetsInAustralia
Namespace Prefix: | fil_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Represents the monetary amount of Long-lived assets in Canada, as of the indicated date. + References No definition available. + Details
Name: | fil_LongLivedAssetsInCanada
Namespace Prefix: | fil_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Represents the monetary amount of Long-lived assets in England, as of the indicated date. + References No definition available. + Details
Name: | fil_LongLivedAssetsInEngland
Namespace Prefix: | fil_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Represents the monetary amount of Long-lived assets in Ireland, as of the indicated date. + References No definition available. + Details
Name: | fil_LongLivedAssetsInIreland
Namespace Prefix: | fil_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Represents the monetary amount of Long-lived assets in the United States, as of the indicated date. + References No definition available. + Details
Name: | fil_LongLivedAssetsInTheUnitedStates
Namespace Prefix: | fil_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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