Note 10 - Segment Information, Significant Customers, Industry Concentration and Geographic Areas

12 Months Ended

Dec. 31, 2019

Notes to Financial Statements

Segment Reporting and Concentration Risk Disclosure [Text Block]

10. SEGMENT INFORMATION, SIGNIFICANT CUSTOMERS, INDUSTRY CONCENTRATION AND GEOGRAPHIC AREAS

The Company's revenues for

2019,

2018

and

2017

were all generated from operations in the motor carrier segment and are aggregated into a single reporting segment in accordance with the aggregation criteria under GAAP.

The table below presents revenue dollars and percentages by geographic area:

	Year Ended December 31,
	2019					2018					2017
	(in thousands)
	Amount		Percent			Amount		Percent			Amount		Percent
United States - domestic shipments	$	326,559		63.5		$	302,754		56.8		$	255,197		58.3
Shipments to or from Mexico		186,391		36.3			229,350		43.0			181,099		41.4
Shipments to or from Canada		1,226		0.2			1,157		0.2			1,542		0.3
Total Operating Revenues	$	514,177		100	%	$	533,261		100	%	$	437,838		100	%

Our

five

largest customers, for which we provide carrier services covering a number of geographic locations, accounted for approximately

40%,

42%

and

41%

of our total revenues in

2019,

2018

and

2017,

respectively. General Motors Company accounted for approximately

19%,

13%

and

18%

of our revenues in

2019,

2018

and

2017,

respectively. Fiat Chrysler Automobiles accounted for approximately

9%,

16%

and

10%

of our revenues in

2019,

2018

and

2017,

respectively. Ford Motor Company accounted for approximately

7%,

8%

and

9%

of our revenues in

2019,

2018

and

2017,

respectively.

We also provide transportation services to other manufacturers who are suppliers for automobile manufacturers. Approximately

40%,

46%

and

46%

of our revenues were derived from transportation services provided to the automobile industry during

2019,

2018

and

2017,

respectively.

Accounts receivable from the

three

largest customers totaled approximately

$31,327,000

and

$30,848,000

at

December 31, 2019

and

2018,

respectively.