It represents employees retirement age under employee benefit plan.

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- Definition

Represents number of supplier.

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No definition available.

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- Definition

Represents number of types of engines.

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No definition available.

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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- Definition

Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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- Definition

Total loss recognized during the period from the impairment of goodwill plus the loss recognized in the period resulting from the impairment of the carrying amount of intangible assets, other than goodwill.

+ References

No definition available.

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No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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- Definition

The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.

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SIGNIFICANT ACCOUNTING POLICIES - Additional Information (Details)	12 Months Ended
	Dec. 31, 2021 USD ($) item	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Product Information [Line Items]
Statutory federal income tax rate	21.00%	21.00%	21.00%
Retirement age of eligible employees for future retirement benefit	65 years
Goodwill and Other Intangibles
Goodwill	$ 3,308,000	$ 3,308,000
Impairment of goodwill or trade names	$ 0	0	$ 0
Minimum
Product Information [Line Items]
Retirement age of eligible employees for future retirement benefit	59 years 6 months
Maximum
Product Information [Line Items]
Retirement age of eligible employees for future retirement benefit	55 years
Selling, general and administrative expenses
Product Information [Line Items]
Research and development costs	$ 776,000	$ 751,000	$ 730,000
Accounts Receivable \| Customer Concentration Risk \| Domestic
Product Information [Line Items]
Percentage of domestic shipments made pursuant to floor plan financing	51.00%
Supplier Concentration Risk
Product Information [Line Items]
Number of supplier \| item	4
Number of types of engines \| item	3