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Note 4 - Discontinued Operations (Details Textual) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Jul. 08, 2020
Discontinued Operation, Amount of Adjustment to Prior Period Gain (Loss) on Disposal, Net of Tax, Total				$ 3,412	$ (0)
Transport Financial Services [Member] | Discontinued Operations, Disposed of by Sale [Member]
Disposal Group, Including Discontinued Operation, Accounts, Notes and Loans Receivable, Net						$ 103,300
Disposal Group Including Discontinued Operation Accounts Notes And Loans Receivable Gross						$ 108,700
Disposal Group, Including Discontinued Operation, Allowance	$ 5,400			5,400
Discontinued Operation, Amount of Adjustment to Prior Period Gain (Loss) on Disposal, Net of Tax, Total	$ (0)	$ 3,400	$ (0)	3,412	(0)
Cash Provided by (Used in) Operating Activities, Discontinued Operations				$ 0	10,000
Cash Provided by (Used in) Investing Activities, Discontinued Operations					0
Cash Provided by (Used in) Financing Activities, Discontinued Operations					$ 0

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- Definition

Represents the disposal group, including discontinued operation accounts notes and loans receivable, gross.

+ References

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- Definition

Amount of allowance on accounts receivable, attributable to disposal group held for sale or disposed of, classified as current.

+ References

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- Definition

Amount of cash inflow (outflow) of financing activities of discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 24
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- Definition

Amount of cash inflow (outflow) of investing activities of discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.

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Amount of cash inflow (outflow) of operating activities of discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.

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Amount after tax of an increase (decrease) to a gain (loss) previously reported in discontinued operations in a prior period.

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Amount classified as accounts, notes and loans receivable attributable to disposal group held for sale or disposed of.

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