Represents shares issued upon conversion as percentage of common stock outstanding for convertible preferred stock.

No definition available.

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- Definition

Represents the amount deductible during the period for individual healthcare claims.

+ References

No definition available.

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- Definition

Represents the number of major customers accounting for 10% or more of the specified concentration risk benchmark, which includes, but not limited to, sales revenue, accounts receivable, etc.

+ References

No definition available.

+ Details

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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

Number of shares issued for each share of convertible preferred stock that is converted.

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- Definition

The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Balance Type:	debit
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- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

Cash received on stock transaction after deduction of issuance costs.

+ References

No definition available.

+ Details

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- Definition

The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.

+ References

No definition available.

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Carrying amount (including both current and noncurrent portions) of accrued known and estimated losses incurred as of the balance sheet date for which no insurance coverage exists, and for which a claim has been made or is probable of being asserted, typically arising from workmen's compensation-type of incidents and personal injury to nonemployees from accidents on the entity's property.

+ References

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Note A - Overview and Significant Accounting Policies (Details Textual) $ in Millions		12 Months Ended
	Jan. 30, 2018 USD ($) shares	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Number of Reportable Segments		3
Impairment of Long-Lived Assets Held-for-use		$ 0.8	$ 4.7
Deductible For Individual Health Care Claims		0.3
Self Insurance Reserve		$ 1.4	$ 2.1
Securities Purchase Agreement [Member] \| Series A Preferred Stock [Member] \| Wipro [Member]
Sale of Stock, Number of Shares Issued in Transaction (in shares) \| shares	9,926
Convertible Preferred Stock, Shares Issued upon Conversion (in shares) \| shares	1,001,614
Convertible Preferred Stock, Shares Issued upon Conversion as Percent of Common Stock Outstanding		15.00%
Sale of Stock, Consideration Received on Transaction	$ 9.9
Customer Concentration Risk [Member] \| Accounts Receivable [Member]
Number of Major Customers		1
Customer Concentration Risk [Member] \| Accounts Receivable [Member] \| Maximum [Member]
Concentration Risk, Percentage			10.00%
Customer Concentration Risk [Member] \| Accounts Receivable [Member] \| One Customer [Member]
Concentration Risk, Percentage		10.00%
Customer Concentration Risk [Member] \| Revenue Benchmark [Member]
Number of Major Customers		25	25
Customer Concentration Risk [Member] \| Revenue Benchmark [Member] \| Maximum [Member]
Concentration Risk, Percentage			10.00%
Customer Concentration Risk [Member] \| Revenue Benchmark [Member] \| One Customer [Member]
Concentration Risk, Percentage		11.20%
Customer Concentration Risk [Member] \| Revenue Benchmark [Member] \| Twenty Five Customers [Member]
Concentration Risk, Percentage		62.00%	64.00%