Long-term Debt (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
|
| Debt Instrument [Line Items] | ||
| Total | $ 130 | $ 2,724 |
| Less current portion | 120 | 1,235 |
| Long-term portion | 10 | 1,489 |
| Various equipment notes payable to banks | ||
| Debt Instrument [Line Items] | ||
| Total | 130 | 270 |
| Various equipment notes payable to banks | Minimum | ||
| Debt Instrument [Line Items] | ||
| Monthly installments amount | $ 1 | $ 1 |
| Debt interest rate | 6.255% | 6.255% |
| Various equipment notes payable to banks | Maximum | ||
| Debt Instrument [Line Items] | ||
| Monthly installments amount | $ 2 | $ 2 |
| Debt interest rate | 12.18% | 12.18% |
| Note payable to bank | ||
| Debt Instrument [Line Items] | ||
| Total | $ 2,454 | |
| Monthly installments amount | $ 91 | $ 91 |
| Prime rate interest | 6.00% | 6.00% |
| Note payable to bank | Prime Rate [Member] | ||
| Debt Instrument [Line Items] | ||
| Variable rate of debt | 1.00% | 1.00% |