Note 1 - Nature of Operations, Organization and Significant Accounting Policies (Tables)

12 Months Ended

Apr. 30, 2019

Notes Tables

Schedule of Other Assets [Table Text Block]

(dollars in thousands)	2019		2018
Privilege fee	$	5,500	$	5,500
Less amortized costs		3,103		2,679
Privilege fee balance	$	2,397	$	2,821
Intangible gaming equipment	$	5,646	$	5,426
Less amortized costs		5,214		4,574
Intangible gaming equipment balance	$	432	$	852
JET autopilot intellectual property	$	1,417	$	1,417
Less amortized costs		1,053		960
JET autopilot intellectual property balance	$	364	$	457

Supplemental Type Certificates Capitalized Costs [Table Text Block]

(dollars in thousands)	2019		2018
Direct labor	$	2,670	$	2,494
Direct materials		3,345		3,099
Consultant costs		1,922		1,922
Overhead		4,524		4,246
		12,461		11,761
Less-amortized costs		6,054		5,164
STC balance	$	6,407	$	6,597

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

(in thousands, except per share data)	2019		2018
Net income attributable to Butler National Corporation	$	3,853	$	341
Weighted average common shares outstanding		64,511,608		64,387,694
Dilutive effect of non-qualified stock option plans		-		-
Weighted average common shares outstanding, assuming dilution		64,511,608		64,387,694
Potential common shares if all options were exercised and shares issued		64,511,608		64,387,694
Basic earnings per common share	$	0.06	$	0.01
Diluted earnings per common share	$	0.06	$	0.01