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Note 13 - Equity Investment	12 Months Ended
	Dec. 31, 2018
Notes to Financial Statements
Business Combination Disclosure [Text Block]	1 3 . Equity Investment We own a 45% equity interest in MWL, a third -party provider of logistics services to the transportation industry. A non-related party owns the other 55% equity interest in MWL. We account for our ownership interest in MWL under the equity method of accounting. We received $5.5 million, $2.2 million and $1.2 million of our revenue for loads transported by our tractors and arranged by MWL in 2018, 2017 and 2016, respectively. As of December 31, 2018, we also had a trade receivable in the amount of $630,000 from MWL and an accrued liability of $1.2 million to MWL for the excess of payments by MWL’s customers into our lockbox account over the amounts drawn on the account by MWL.

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- Definition

The entire disclosure for a business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities. The disclosure may include leverage buyout transactions (as applicable).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-URI http://asc.fasb.org/topic&trid=2303972

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- References

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