Note 16 - Revenue

12 Months Ended

Dec. 31, 2018

Revenue from Contract with Customer [Text Block]

REVENUE

Net sales from continuing operations by geographic region, based on the location of the customer, were as follows (in thousands):

	Year Ended December 31,
	2018		2017		2016
Net sales from continuing operations by geographic region:
United States	$	161,415	$	122,179	$	137,411
Canada		10,734		10,601		11,976
Total	$	172,149	$	132,780	$	149,387

customer accounted for

10%

or more of total Net sales from continuing operations for the years ended

December

31,

2018

2017.

One

customer accounted for

28%

of total Net sales from continuing operations for the year ended

December

31,

2016.

Revisions in contract estimates resulted in an increase (decrease) in revenue of $(

0.2

) million, $(

0.2

) million, and

$1.7

million for the years ended

December

31,

2018,

2017,

and

2016,

respectively.

Contract

Assets and Liabilities

The difference between the opening and closing balances of the Company’s Contract assets and Contract liabilities primarily results from the timing difference between the Company’s performance and billings, and an increase due to the acquisition of Ameron of

$12.0

million of Contract assets and

$0.1

million of Contract liabilities. The changes in the Contract assets and Contract liabilities balances during the years ended

December

31,

2018,

2017,

and

2016

were

not

materially affected by any other factors.

Revenue recognized that was included in the Contract liabilities balance at the beginning of each period was

$2.6

million,

$1.9

million, and

$0.5

million during the years ended

December

31,

2018,

2017,

and

2016,

respectively.

Backlog

Backlog represents the balance of remaining performance obligations under signed contracts. As of

December

31,

2018,

backlog was approximately

$81.3

million. The Company expects to recognize approximately

83%

of the remaining performance obligations in

2019

13%

2020

and the balance thereafter.