Represents number of supplier.

No definition available.

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- Definition

Represents number of types of engines.

+ References

No definition available.

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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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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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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.

+ References

No definition available.

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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, 2019 USD ($) item	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Product Information [Line Items]
Statutory federal income tax rate	21.00%	21.00%	35.00%
Goodwill and Other Intangibles
Goodwill	$ 3,308,000	$ 3,308,000
Impairment of goodwill or trade names	$ 0	0	$ 0
Earliest tax year
Product Information [Line Items]
Statutory federal income tax rate	35.00%
Latest tax year
Product Information [Line Items]
Statutory federal income tax rate	21.00%
Selling, general and administrative expenses
Product Information [Line Items]
Research and development costs	$ 730,000	$ 822,000	$ 960,000
Accounts Receivable
Product Information [Line Items]
Percentage of domestic shipments made pursuant to floor plan financing	64.00%
Supplier Concentration Risk
Product Information [Line Items]
Number of supplier \| item	4
Number of types of engines \| item	3