Goodwill, Long-lived Assets and Other Intangibles Long-lived Assets and Other Intangibles (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2018	Oct. 31, 2017	Oct. 31, 2018	Oct. 31, 2017	Jan. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Long-lived asset impairment loss	$ 0	$ 0	$ 0	$ 259
Finite-Lived Intangible Assets, Gross	25,510		25,510		$ 24,795
Finite-Lived Intangible Assets, Accumulated Amortization	(14,103)		(14,103)		(14,211)
Finite-Lived Intangible Assets, Net	11,407		11,407		10,584
Technology-Based Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	7,190		7,190		7,290
Finite-Lived Intangible Assets, Accumulated Amortization	(7,109)		(7,109)		(6,996)
Finite-Lived Intangible Assets, Net	81		81		294
Customer-Related Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	12,483		12,483		13,264
Finite-Lived Intangible Assets, Accumulated Amortization	(5,234)		(5,234)		(4,834)
Finite-Lived Intangible Assets, Net	7,249		7,249		8,430
Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	5,837		5,837		4,241
Finite-Lived Intangible Assets, Accumulated Amortization	(1,760)		(1,760)		(2,381)
Finite-Lived Intangible Assets, Net	4,077		4,077		$ 1,860
AgEagle Aerial Systems [Member] | Applied Technology [Member] | Other Nonoperating Income (Expense) [Member]
Finite-Lived Intangible Assets [Line Items]
Equity Method Investment, Other than Temporary Impairment	0	0	0	72
AgEagle Aerial Systems [Member] | Applied Technology [Member] | Customer-Related Intangible Assets [Member] | Operating Income (Loss) [Member]
Finite-Lived Intangible Assets [Line Items]
Long-lived asset impairment loss	$ 0	$ 0	$ 0	$ 259