Revenue (Tables)

6 Months Ended

Jul. 31, 2020

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 July 31, 2020										Three Months Ended July 31, 2019
	ATD		EFD		AERO		ELIM(a)		Total		ATD		EFD		AERO		ELIM(a)		Total
Lighter-than-Air
Domestic	$	—	$	—	$	10,008	$	—	$	10,008	$	—	$	—	$	8,130	$	—	$	8,130
International	—		—		34		—		34		—		—		15		—		15
Plastic Films &   Sheeting
Domestic	—		32,478		—		(38)		32,440		—		54,843		—		(18)		54,825
International	—		3,774		—		—		3,774		—		2,673		—		—		2,673
Precision Agriculture   Equipment
Domestic	28,000		—		—		(2)		27,998		20,374		—		—		—		20,374
International	7,502		—		—		—		7,502		6,997		—		—		—		6,997
Other
Domestic	—		—		3,423		—		3,423		—		—		4,966		—		4,966
International	—		—		—		—		—		—		—		78		—		78
Totals	$	35,502	$	36,252	$	13,465	$	(40)	$	85,179	$	27,371	$	57,516	$	13,189	$	(18)	$	98,058
	Six Months Ended July 31, 2020										Six Months Ended July 31, 2019
	ATD		EFD		AERO		ELIM(a)		Total		ATD		EFD		AERO		ELIM(a)		Total
Lighter-than-Air
Domestic	$	—	$	—	$	16,090	$	—	$	16,090	$	—	$	—	$	15,159	$	—	$	15,159
International	—		—		46		—		46		—		—		49		—		49
Plastic Films & Sheeting
Domestic	—		63,034		—		(98)		62,936		—		96,605		—		(47)		96,558
International	—		6,616		—		—		6,616		—		5,203		—		—		5,203
Precision Agriculture Equipment
Domestic	58,861		—		—		(2)		58,859		49,958		—		—		—		49,958
International	18,648		—		—		—		18,648		19,138		—		—		—		19,138
Other
Domestic	—		—		8,475		—		8,475		—		—		10,088		—		10,088
International	—		—		5		—		5		—		—		83		—		83
Totals	$	77,509	$	69,650	$	24,616	$	(100)	$	171,675	$	69,096	$	101,808	$	25,379	$	(47)	$	196,236

(a) Intersegment sales for both fiscal 2021 and 2020 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:

	July 31, 2020		January 31, 2020		$ Change		% Change
Contract assets	$	4,826	$	7,525	$	(2,699)	(35.9)	%
Contract liabilities	3,013		$	2,288	$	725	31.7	%