Revenue (Tables)

3 Months Ended

Apr. 30, 2019

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue [Table Text Block]

Disaggregation of Revenues

Revenue is disaggregated by major product category and geography, as we believe these categories best depict how the nature, amount, timing and uncertainty of our revenue and cash flows are affected by economic factors. The following table includes a reconciliation of the disaggregated revenue by reportable segments. Service revenues are not material and are not separately disclosed.

	Revenue by Product Category
	Three Months Ended April 30, 2019											Three Months Ended April 30, 2018
	ATD		EFD		AERO		ELIM(a)			Total		ATD		EFD		AERO		ELIM(a)			Total
Lighter-than-Air
Domestic	$	—	$	—	$	7,029	$	—		$	7,029	$	—	$	—	$	6,548	$	—		$	6,548
International	—		—		34		—			34		—		—		454		—			454
Plastic Films & Sheeting
Domestic	—		41,762		—		(29		)	41,733		—		55,297		—		(194		)	55,103
International	—		2,530		—		—			2,530		—		4,695		—		—			4,695
Precision Agriculture Equipment
Domestic	29,584		—		—		—			29,584		29,525		—		—		—			29,525
International	12,141		—		—		—			12,141		10,905		—		—		—			10,905
Other
Domestic	—		—		5,122		—			5,122		—		—		3,899		—			3,899
International	—		—		5		—			5		—		—		—		—			—
Totals	$	41,725	$	44,292	$	12,190	$	(29	)	$	98,178	$	40,430	$	59,992	$	10,901	$	(194	)	$	111,129

^(a) Intersegment sales for both fiscal 2020 and 2019 were primarily sales from Engineered Films to Aerostar.

Contract with Customer, Asset and Liability [Table Text Block]

Changes in our contract assets and liabilities were as follows:

	April 30, 2019		January 31, 2019		$ Change		% Change
Contract assets	$	6,669	$	2,027	$	4,642	229.0	%
Contract liabilities	$	2,839	$	1,303	$	1,536	117.9	%