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Note 11 - Related Party Transactions (Tables) | 12 Months Ended
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Dec. 31, 2022
Notes Tables |
Schedule of Related Party Transactions [Table Text Block] |
|  | December 31, |
|  | 2022 |  |  | 2021 |
Equipment purchases and de-install costs |  | $ | 1,844,000 |  |  | $ | 1,906,000 |
Costs incurred to maintain equipment |  |  | 1,094,000 |  |  |  | 759,000 |
Total related party transactions |  | $ | 2,938,000 |  |  | $ | 2,665,000 |
|  | December 31, |
|  | 2022 |  |  | 2021 |
Accounts payable and other accrued liabilities |  | $ | 497,000 |  |  | $ | 1,992,000 |

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- Definition Tabular disclosure of related party transactions. Examples of related party transactions include, but are not limited to, transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners and (d) affiliates. + References No definition available. + Details
Name: | us-gaap_ScheduleOfRelatedPartyTransactionsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

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