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Business Description, Basis of Presentation and Significant Accounting Policies (Details Textual) - USD ($) $ in Thousands | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Jan. 31, 2022 | Dec. 31, 2022 | Dec. 31, 2021 | Oct. 31, 2022
Business Description, Basis of Presentation and Significant Accounting Policies |  |  |  |
Current inventory |  | $ 8,961 | $ 10,033 |
Long-term inventory |  | 2,707 | 3,567 |
Operating lease right-of-use assets |  | 1,047 | 1,537 |
Operating lease liability, net of current |  | 492 | 1,026 |
Decreased revenue due to the impact of the adoption of the New Revenue Standard |  | 25,205 | 28,967 |
Advertising expenses |  | 572 | 508 |
Net deferred tax assets |  | 0 |  |
Cash and cash equivalents |  | 984 | 1,071 |
Working capital |  | 69,307 | 17,969 |
Net cash used in operating activities |  | 4,179 | 4,394 |
Decrease of cash used in operating activities |  | (215) |  |
Time Deposits, at or Above FDIC Insurance Limit |  | $ 564 |  |
Period of cumulative pre-tax operating losses |  | 3 years |  |
Short-Term Notes Payable |  |  |  |
Business Description, Basis of Presentation and Significant Accounting Policies |  |  |  |
Principal amount of loan obtained |  |  |  | $ 2,000
Litigation for Intellectual Property Infringement |  |  |  |
Business Description, Basis of Presentation and Significant Accounting Policies |  |  |  |
Litigation Settlement, Expense |  | $ 27,374 |  |
Equipment Sales |  |  |  |
Business Description, Basis of Presentation and Significant Accounting Policies |  |  |  |
Decreased revenue due to the impact of the adoption of the New Revenue Standard |  | 25,104 |  |
Software and Licenses |  |  |  |
Business Description, Basis of Presentation and Significant Accounting Policies |  |  |  |
Decreased revenue due to the impact of the adoption of the New Revenue Standard |  | $ 101 |  |
Common Stock |  |  |  |
Business Description, Basis of Presentation and Significant Accounting Policies |  |  |  |
Number of common stock issued for cancellation and termination of short-term notes | $ 2,000 |  |  |
Minimum |  |  |  |
Business Description, Basis of Presentation and Significant Accounting Policies |  |  |  |
Property and equipment, useful life (in years) |  | 2 years |  |
Intangible assets, estimated useful lives |  | 3 years |  |
Maximum |  |  |  |
Business Description, Basis of Presentation and Significant Accounting Policies |  |  |  |
Property and equipment, useful life (in years) |  | 10 years |  |
Intangible assets, estimated useful lives |  | 10 years |  |
Maturity period of highly-liquid investments classified as cash equivalents |  | 3 months |  |
Period of payment requirement from date of invoicing for distributor payment |  | 45 days |  |
Period of scheduled delivery date to customer |  | 1 year |  |
Period of payment requirement from date of invoicing for dealer payment |  | 30 days |  |
Replacement Parts |  |  |  |
Business Description, Basis of Presentation and Significant Accounting Policies |  |  |  |
Current inventory |  | $ 193 | $ 130 |

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