Butler National (BUKS) 10-Q 14 Sep 22 2023 Q1 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	3 Months Ended
	Jul. 31, 2022	Sep. 14, 2022
Document Information [Line Items]
Entity Central Index Key	0000015847
Entity Registrant Name	BUTLER NATIONAL CORP
Amendment Flag	false
Current Fiscal Year End Date	--04-30
Document Fiscal Period Focus	Q1
Document Fiscal Year Focus	2023
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jul. 31, 2022
Document Transition Report	false
Entity File Number	0-1678
Entity Incorporation, State or Country Code	KS
Entity Tax Identification Number	41-0834293
Entity Address, Address Line One	19920 West 161st Street
Entity Address, City or Town	Olathe
Entity Address, State or Province	KS
Entity Address, Postal Zip Code	66062
City Area Code	913
Local Phone Number	780-9595
Title of 12(g) Security	Common Stock $.01 Par Value
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		76,781,507

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Jul. 31, 2022	Apr. 30, 2022
CURRENT ASSETS:
Cash	$ 14,796	$ 12,487
Accounts receivable, net of allowance for doubtful accounts	3,615	3,636
Inventories
Parts and raw materials	4,916	4,722
Work in process	4,333	4,080
Finished goods	72	70
Total inventory, net of allowance	9,321	8,872
Contract asset	1,144	1,470
Prepaid expenses and other current assets	1,602	1,361
Total current assets	30,478	27,826
PROPERTY, PLANT AND EQUIPMENT:
Lease right-to-use assets	3,781	3,240
Construction in progress	0	6,417
Land	4,751	4,751
Building and improvements	47,772	40,962
Aircraft	8,798	8,719
Machinery and equipment	5,027	4,917
Office furniture and fixtures	12,399	11,826
Leasehold improvements	4,032	4,032
Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, before Accumulated Depreciation and Amortization	86,560	84,864
Accumulated depreciation	(24,170)	(23,290)
Total property, plant and equipment	62,390	61,574
SUPPLEMENTAL TYPE CERTIFICATES (net of accumulated amortization of $9,681 at July 31, 2022 and $9,336 at April 30, 2022)	8,084	8,018
OTHER ASSETS:
Other assets (net of accumulated amortization of $11,745 at July 31, 2022 and $11,575 at April 30, 2022)	1,524	1,621
Deferred tax asset, net	1,490	1,770
Total other assets	3,014	3,391
Total assets	103,966	100,809
CURRENT LIABILITIES:
Current maturities of long-term debt	5,054	5,165
Current maturities of lease liability	136	106
Accounts payable	2,736	2,773
Contract liability	4,164	820
Gaming facility mandated payment	1,322	1,630
Compensation and compensated absences	1,539	1,911
Income taxes payable	1,309	1,049
Other current liabilities	348	211
Total current liabilities	16,608	13,665
LONG-TERM LIABILITIES
Long-term debt, net of current maturities	42,220	43,411
Lease liability, net of current maturities	3,391	2,899
Total long-term liabilities	45,611	46,310
Total liabilities	62,219	59,975
COMMITMENTS AND CONTINGENCIES
STOCKHOLDERS' EQUITY:
Common stock, par value $.01: authorized 100,000,000 shares issued 80,673,572 shares, and outstanding 76,781,507 shares at July 31, 2022 and issued 80,348,572 shares, and outstanding 76,458,146 shares at April 30, 2022	807	803
Capital contributed in excess of par	12,640	12,160
Treasury stock at cost, 3,892,065 shares at July 31, 2022 and 3,890,426 shares at April 30, 2022	(2,079)	(2,077)
Retained earnings	30,379	29,948
Total stockholders' equity	41,747	40,834
Total liabilities and stockholders' equity	103,966	100,809
Preferred Class A [Member]
STOCKHOLDERS' EQUITY:
Preferred stock	0	0
Preferred Class B [Member]
STOCKHOLDERS' EQUITY:
Preferred stock	$ 0	$ 0

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Jul. 31, 2022	Apr. 30, 2022
Supplemental type certificates, accumulated amortization	$ 9,681	$ 9,336
Other assets, accumulated amortization	$ 11,745	$ 11,575
Preferred stock, par value (in dollars per share)	$ 5	$ 5
Preferred stock, shares authorized (in shares)	50,000,000	50,000,000
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	100,000,000	100,000,000
Common stock, shares issued (in shares)	80,673,572	80,348,572
Common stock, shares outstanding (in shares)	76,781,507	76,458,146
Treasury stock, shares (in shares)	3,892,065	3,890,426
Preferred Class A [Member]
Preferred stock, stated value (in dollars per share)	$ 100	$ 100
Preferred stock, dividend rate	9.80%	9.80%
Preferred stock, liquidation value	$ 100	$ 100
Preferred stock, redemption value	$ 100	$ 100
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Preferred stock, designated classes (in shares)	200,000	200,000
Preferred Class B [Member]
Preferred stock, stated value (in dollars per share)	$ 1,000	$ 1,000
Preferred stock, dividend rate	6%	6%
Preferred stock, liquidation value	$ 1,000	$ 1,000
Preferred stock, redemption value	$ 1,000	$ 1,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Preferred stock, designated classes (in shares)	200,000	200,000

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Jul. 31, 2022	Jul. 31, 2021
REVENUE:
Revenues from customers	$ 15,304	$ 17,745
COSTS AND EXPENSES:
Marketing and advertising	1,331	1,180
Employee benefits	614	575
Depreciation and amortization	771	702
General, administrative and other	2,513	1,929
Total costs and expenses	13,679	13,723
OPERATING INCOME	1,625	4,022
OTHER INCOME (EXPENSE):
Interest expense	(723)	(614)
Forgiveness of debt	0	(2,001)
Gain on sale of building	69	0
Total other income (expense)	(654)	1,387
INCOME BEFORE INCOME TAXES	971	5,409
PROVISION FOR INCOME TAXES
Provision for income taxes	260	631
Deferred income tax	280	0
NET INCOME	431	4,778
Net income attributable to noncontrolling interest in BHCMC, LLC	0	(1,872)
NET INCOME ATTRIBUTABLE TO BUTLER NATIONAL CORPORATION	$ 431	$ 2,906
BASIC EARNINGS PER COMMON SHARE (in dollars per share)	$ 0.01	$ 0.04
WEIGHTED AVERAGE SHARES USED IN PER SHARE CALCULATION (in shares)	76,456,284	75,366,749
DILUTED EARNINGS PER COMMON SHARE (in dollars per share)	$ 0.01	$ 0.04
WEIGHTED AVERAGE SHARES USED IN PER SHARE CALCULATION (in shares)	76,456,284	75,366,749
Professional Services [Member]
REVENUE:
Revenues from customers	$ 8,962	$ 9,326
COSTS AND EXPENSES:
Cost of services and products	3,623	3,325
Aerospace Products [Member]
REVENUE:
Revenues from customers	6,342	8,419
COSTS AND EXPENSES:
Cost of services and products	$ 4,827	$ 6,012

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands		Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Retained Earnings [Member]	Parent [Member]	Noncontrolling Interest [Member]	Total
Balance (in shares) at Apr. 30, 2021		79,070,382		3,703,633
Balance at Apr. 30, 2021		$ 790	$ 16,900	$ (1,909)	$ 19,580	$ 35,361	$ 6,018	$ 41,379
Deferred compensation, restricted stock		0	148	0	0	148	0	148
Net Income		$ 0	0	$ 0	2,906	2,906	1,872	$ 4,778
Stock repurchase (in shares)	[1]							0
Balance (in shares) at Jul. 31, 2021		79,070,382		3,703,633
Balance at Jul. 31, 2021		$ 790	17,048	$ (1,909)	22,486	38,415	7,890	$ 46,305
Balance (in shares) at Apr. 30, 2022		80,348,572		3,890,426
Balance at Apr. 30, 2022		$ 803	12,160	$ (2,077)	29,948	40,834	0	40,834
Deferred compensation, restricted stock		0	132	0	0	132	0	132
Net Income		$ 0	0	$ 0	431	431	0	$ 431
Stock repurchase (in shares)		0		1,639				1,639	[1]
Stock repurchase		$ 0	0	$ (2)	0	(2)	0	$ (2)
Stock awarded to Director (in shares)		400,000		0
Stock awarded to Director		$ 4	348	$ 0	0	352	0	352
Balance (in shares) at Jul. 31, 2022		80,673,572		3,892,065
Balance at Jul. 31, 2022		$ 807	$ 12,640	$ (2,079)	$ 30,379	$ 41,747	$ 0	$ 41,747
[1]These shares of common stock were purchased through a private transaction

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Jul. 31, 2022	Jul. 31, 2021
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 431	$ 4,778
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization	1,458	1,314
Gain on sale of building	(69)	0
Deferred income tax expense	280	0
Stock awarded to director	352	0
Forgiveness of debt	0	(2,001)
Deferred compensation, restricted stock	132	148
Changes in operating assets and liabilities
Accounts receivable	21	(996)
Inventories	(449)	113
Contract assets	326	(157)
Prepaid expenses and other current assets	(241)	(18)
Accounts payable	(37)	423
Contract liability	3,344	(2,994)
Lease liability	45	38
Accrued liabilities	(372)	(234)
Gaming facility mandated payment	(308)	(227)
Income tax payable	260	631
Other liabilities	137	80
Net cash provided by operating activities	5,310	898
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures	(1,797)	(1,275)
Proceeds from sale of building	164	0
Net cash used in investing activities	(1,633)	(1,275)
CASH FLOWS FROM FINANCING ACTIVITIES
Repayments of long-term debt	(1,302)	(988)
Repurchase of common stock	(2)	0
Repayments on lease right-to-use	(64)	(72)
Net cash used in financing activities	(1,368)	(1,060)
NET INCREASE (DECREASE) IN CASH	2,309	(1,437)
CASH, beginning of period	12,487	22,022
CASH, end of period	14,796	20,585
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION
Interest paid	713	630
Income taxes paid	0	0
NON CASH INVESTING AND FINANCING ACTIVITY
Lease right-of-use assets purchased	541	0
Lease liability for purchase of assets under lease	$ 541	$ 0

Note 1

Note 1	3 Months Ended
	Jul. 31, 2022
Notes to Financial Statements
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]	1. 10 8 X not 10 April 30, 2022 three July 31, 2022 not may April 30, 2023 Certain reclassifications within the condensed financial statement captions have been made to maintain consistency in presentation between years. These reclassifications have no

Note 2 - Net Income Per Share

Note 2 - Net Income Per Share	3 Months Ended
	Jul. 31, 2022
Notes to Financial Statements
Earnings Per Share [Text Block]	2. 260 260,

Note 3 - Revenue Recognition_ A

Note 3 - Revenue Recognition: ASC Topic 606, "Revenue from Contracts with Customers"	3 Months Ended
	Jul. 31, 2022
Notes to Financial Statements
Revenue from Contract with Customer [Text Block]	3. 606, Under ASC 606, five 1 Identify the contract, or contracts, with a customer A contract with a customer exists when (i) the Company enters into an enforceable contract with a customer that defines each party’s rights regarding the services to be transferred and identifies the payment terms related to these services, (ii) the contract has commercial substance and (iii) the Company determines that collection of substantially all consideration for services that are transferred is probable based on the customer’s intent and ability to pay the promised consideration. 2 Identification of the performance obligations in the contract At contract inception, an entity shall assess the goods or services promised in a contract with a customer and shall identify as a performance obligation each promise to transfer to the customer. Performance obligations promised in a contract are identified based on the services that will be transferred to the customer that are both capable of being distinct, whereby the customer can benefit from the service either on its own or together with other resources that are readily available from third not 3 Determination of the transaction price The transaction price is the amount that an entity allocates to the performance obligations identified in the contract and, therefore, represents the amount of revenue recognized as those performance obligations are satisfied. The transaction price is the amount of consideration to which an entity expects to be entitled in exchange for transferring promised goods or services to a customer. 4 Allocation of the transaction price to the performance obligations in the contract Once a contract and associated performance obligations have been identified and the transaction price has been determined, ASC 606 5 Recognition of revenue when, or as, we satisfy a performance obligation Revenue is recognized when or as performance obligations are satisfied by transferring control of a promised good or service to a customer. Control transfers either over time or at a point in time. Revenue is recognized when control of the promised services is transferred to our customers, in an amount that reflects the consideration we expect to be entitled to in exchange for those services. Aircraft modifications are performed under fixed-price contracts. Revenue from fixed-priced contracts are recognized on the percentage-of-completion method, measured by the direct labor incurred compared to total estimated direct labor. Revenue from Avionics products are recognized when shipped. Payment for these Avionics products is due within 30 Regarding warranties and returns, our products are special order and are not may not Gaming revenue is the gross gaming win as reported by the Kansas Lottery casino reporting systems, less the mandated payments by and for the State of Kansas. Electronic games-slots and table games revenue is the aggregate of gaming wins and losses. Liabilities are recognized for chips and "ticket-in, ticket-out" coupons in the customers' possession, and for accruals related to anticipated payout of progressive jackpots. Progressive gaming machines, which contain base jackpots that increase at a progressive rate based on the number of coins played, are deducted from revenue as the value of jackpots increase. Food, beverage, and other revenue is recorded when the service is received and paid.

Note 4 - Disaggregation of Reve

Note 4 - Disaggregation of Revenue	3 Months Ended
	Jul. 31, 2022
Notes to Financial Statements
Disaggregation of Revenue [Text Block]	4. In the following table, revenue is disaggregated by primary geographical market, major product line, and timing of revenue recognition. Three Months Ended July 31, 2022 Three Months Ended July 31, 2021 Professional Services Aerospace Products Total Professional Services Aerospace Products Total Geographical Markets North America $ 8,962 $ 5,997 $ 14,959 $ 9,326 $ 7,443 $ 16,769 Europe - 183 183 - 842 842 Asia - 137 137 - 88 88 Australia and Other - 25 25 - 46 46 $ 8,962 $ 6,342 $ 15,304 $ 9,326 $ 8,419 $ 17,745 Major Product Lines Casino Gaming Revenues $ 7,816 $ - $ 7,816 $ 8,189 $ - $ 8,189 Casino Non-Gaming Revenues 1,077 - 1,077 1,066 - 1,066 Professional Services 69 - 69 71 - 71 Aircraft Modification - 3,836 3,836 - 5,782 5,782 Aircraft Avionics - 715 715 - 875 875 Special Mission Electronics - 1,791 1,791 - 1,762 1,762 $ 8,962 $ 6,342 $ 15,304 $ 9,326 $ 8,419 $ 17,745 Contract Types / Revenue Recognition Timing Percentage of completion contracts $ - $ 3,251 $ 3,251 $ - $ 5,275 $ 5,275 Goods or services transferred at a point of sale 8,962 3,091 12,053 9,326 3,144 12,470 $ 8,962 $ 6,342 $ 15,304 $ 9,326 $ 8,419 $ 17,745

Note 5 - Accounts Receivable, N

Note 5 - Accounts Receivable, Net, Contract Asset and Contract Liability	3 Months Ended
	Jul. 31, 2022
Notes to Financial Statements
Contract with Customer, Contract Asset, Contract Liability, and Receivable [Text Block]	5. Accounts Receivables, net, contract asset and contract liability were as follows (in thousands): July 31, April 30, 2022 2022 Accounts Receivable, net $ 3,615 $ 3,636 Contract Asset 1,144 1,470 Contract Liability 4,164 820 Accounts receivable, net consist of $3,615 and $3,636 from customers as of July 31, 2022 April 30, 2022 July 31, 2022 April 30, 2022 Contract assets are net of progress payments and performance based payments from our customers as well as advance payments from customers totaling $1,144 and $1,470 as of July 31, 2022 April 30, 2022 three July 31, 2022 three July 31, 2022 no three July 31, 2022 July 31, 2022 2023. Contract liabilities increased $3,344 during the three July 31, 2022

Note 6 - Use of Estimates

Note 6 - Use of Estimates	3 Months Ended
	Jul. 31, 2022
Notes to Financial Statements
Use of Estimates [Text Block]	6. may

Note 7 - Inventories

Note 7 - Inventories	3 Months Ended
	Jul. 31, 2022
Notes to Financial Statements
Inventory Disclosure [Text Block]	7. first first Inventory obsolescence is examined on a regular basis. When determining our estimate of obsolescence, we consider inventory that has been inactive for five July 31, 2022 April 30, 2022

Note 8 - Research and Developme

Note 8 - Research and Development	3 Months Ended
	Jul. 31, 2022
Notes to Financial Statements
Research, Development, and Computer Software Disclosure [Text Block]	8. three July 31, 2022 2021

Note 9 - Debt

Note 9 - Debt	3 Months Ended
	Jul. 31, 2022
Notes to Financial Statements
Debt Disclosure [Text Block]	9. July 31, 2022 July 31, 2022 no three July 31, 2022 first second At July 31, 2022 seven twenty seven second five 1.0. July 31, 2022 At July 31, 2022 one 1st January 2023. At July 31, 2022 one June 2024. At July 31, 2022 March 2029. At July 31, 2022 March 2029. At July 31, 2022 March 2029. At July 31, 2022 October 2025. In May 2020, June 2021, We are not July 31, 2022 We believe that our current banks will provide the necessary capital for our business operations. However, we continue to maintain contact with other banks that have an interest in funding our working capital needs to continue our growth in operations in 2022

Note 10 - Other Assets

Note 10 - Other Assets	3 Months Ended
	Jul. 31, 2022
Notes to Financial Statements
Intangible Assets Disclosure [Text Block]	10. $5,500 December 2024. December 15, 2024, 2039, 15 three fifteen

Note 11 - Stock Options and Inc

Note 11 - Stock Options and Incentive Plans	3 Months Ended
	Jul. 31, 2022
Notes to Financial Statements
Share-Based Payment Arrangement [Text Block]	11. In November 2016, 2016 may April 12, 2019, April 11, 2024. March 17, 2020, March 16, 2025. five In July 2022, $352. No For the three July 31, 2022 July 31, 2021 Number of Shares Weighted Average Grant Date Fair Value Total shares issued 7,900,000 $ 0.42 Forfeited, in prior periods (50,000 ) $ 0.40 Forfeited, during the year ended April 30, 2022 (50,000 ) $ 0.40 Forfeited, during the quarter ended July 31, 2022 (75,000 ) $ 0.40 Total 7,725,000 $ 0.42

Note 12 - Stock Repurchase Prog

Note 12 - Stock Repurchase Program	3 Months Ended
	Jul. 31, 2022
Notes to Financial Statements
Treasury Stock [Text Block]	12. The Board of Directors approved a stock purchase program authorizing the repurchase of up to $4,000 of its common stock. The timing and amount of any share repurchases will be determined by Butler National’s management based on market conditions and other factors. The program is currently authorized through May 1, 2023. The table below provides information with respect to common stock purchases by the Company through July 31, 2022 Period Total Number of Shares Purchased Average Price Paid per Share Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs Approximate Dollar Value of Shares That May Yet Be Purchased Under the Plans or Programs Shares purchased in prior periods 3,103,633 $ 0.38 3,103,633 $ 2,823 Quarter ended July 31, 2021 (a) - $ - - $ 2,823 Quarter ended October 31, 2021 (a) 6,290 $ 0.62 6,290 $ 2,819 Quarter ended January 31, 2022 (a) - $ - - $ 2,819 Quarter ended April 30, 2022 (a) 180,503 $ 0.91 180,503 $ 2,655 Quarter ended July 31, 2022 (a) 1,639 $ 0.84 1,639 $ 2,653 Total 3,292,065 $ 0.41 3,292,065 (a) These shares of common stock were purchased through a private transaction

Note 13 - Lease Right-to-use

Note 13 - Lease Right-to-use	3 Months Ended
	Jul. 31, 2022
Notes to Financial Statements
Lessee, Finance Leases [Text Block]	13. We lease hangars and office space with initial lease terms of five forty fifty July 31, 2022 Lease right-to-use assets $ 3,781 Less accumulated depreciation 558 Total $ 3,223 Future minimum lease payments for assets under finance leases at July 31, 2022 2023 $ 260 2024 252 2025 114 2026 116 2027 119 Thereafter 12,918 Total minimum lease payments 13,779 Less amount representing interest 10,252 Present value of net minimum lease payments 3,527 Less current maturities of lease liability 136 Lease liability, net of current maturities $ 3,391 Finance lease costs at July 31, 2022 July 31, 2021 FinanceLeaseCost July 31, 2022 July 31, 2021 Finance lease cost: Amortization of right-of-use assets $ 46 $ 52 Interest on lease liabilities 45 38 Total finance lease cost $ 91 $ 90 July 31, 2022 July 31, 2021 Weighted average remaining lease term - Financing leases 46 years 44 years Weighted average discount rate - Financing leases 5.8 % 5.0 %

Note 14 - Purchase of Noncontro

Note 14 - Purchase of Noncontrolling Interest	3 Months Ended
	Jul. 31, 2022
Notes to Financial Statements
Business Combination Disclosure [Text Block]	14. On October 18, 2021, 100% August 1, 2021. The Transaction purchase price was paid by a combination of available cash and an $8.0 million borrowing on a commercial loan with Academy Bank, N.A. (“Academy Bank”). BHCMC executed a Loan Modification Agreement with Academy, dated October 18, 2021 ( December 22, 2020 2020 July 31, 2022, five October 18, 2026. The following table summarizes the purchase price and accounting of the transaction: Purchase Price Summary: Secured notes payable, net of financing costs $ 7,914 Forgiven note receivable from seller 780 Cash paid 7,659 Total $ 16,353 Accounting Summary: Capital contributed in excess of par $ 6,119 Book basis of the noncontrolling interest in BHCMC, LLC 7,890 Deferred tax asset related to step up in basis 2,344 Total $ 16,353

Note 15 - Segment Reporting and

Note 15 - Segment Reporting and Sales by Major Customer	3 Months Ended
	Jul. 31, 2022
Notes to Financial Statements
Segment Reporting Disclosure [Text Block]	15. Industry Segmentation Current Activities - Aerospace Products: Aircraft Modifications principally includes the modification of customer and company owned business-size aircraft for specific operations or special missions such as addition of aerial photography capabilities and ISR modifications. We provide these services through our subsidiary, Avcon Industries, Inc. ("Aircraft Modifications" or "Avcon"). Special mission electronics principally includes the manufacture, sale, and service of electronics upgrades for classic weapon control systems used on commercial and military aircraft and vehicles. We provide the products through our subsidiary, Butler National Corporation - Tempe, Arizona. Butler Avionics sells, installs and repairs aircraft avionics equipment (airplane radio equipment and flight control systems). These systems are flight display systems which include intuitive touchscreen controls with large display that enhance pilot situational awareness and give users unprecedented access to high-resolution terrain mapping, graphical flight planning, geo-referenced charting, traffic display, satellite weather and much more. Butler Avionics is also recognized nationwide for its troubleshooting and repair work particularly on autopilot systems. Professional Services: Butler National Service Corporation ("BNSC") provides management services to the Boot Hill Casino, a "state-owned casino". BCS Design, Inc. provides licensed architectural services. These services include commercial and industrial building design. Three Months Ended July 31, 2022 Gaming Aircraft Modification Aircraft Avionics Special Mission Electronics Other Total Revenues from customers $ 8,893 $ 3,836 $ 715 $ 1,791 $ 69 $ 15,304 Interest expense 642 66 - 7 8 723 Depreciation and amortization 626 53 2 39 51 771 Operating income (loss) 2,642 54 48 616 (1,735 ) 1,625 Three Months Ended July 31, 2021 Gaming Aircraft Modification Aircraft Avionics Special Mission Electronics Other Total Revenues from customers $ 9,255 $ 5,782 $ 875 $ 1,762 $ 71 $ 17,745 Interest expense 548 55 - 6 5 614 Depreciation and amortization 578 45 2 33 44 702 Operating income (loss) 3,544 1,143 (19 ) 503 (1,149 ) 4,022 Our Chief Operating Decision Maker (CODM) does not Major Customers: 10 Three Months Ended July 31, 2022 Three Months Ended July 31, 2021 Aerospace Products – one customer in the three months ended July 31, 2022, one customer in the three months ended July 31, 2021 11.7 % 10.7 % Professional Services - - In the three July 31, 2022 four

Note 16 - COVID-19 Overview

Note 16 - COVID-19 Overview	3 Months Ended
	Jul. 31, 2022
Notes to Financial Statements
Effect of Covid-19 Pandemic [Text Block]	16. 19 The pandemic caused by COVID- 19 2020, 2022, We have experienced lower customer headcount, which has been off-set by a larger net revenue per customer. We are experiencing, and expect to continue experiencing, lower demand for our professional services and increased costs and other challenges related to COVID- 19 The COVID- 19 2023. 19 1A. 19. As the economy in general slowly recovers, and vaccinations rates in our operating territory improve and new infections decline, we have continued to see improvements in customer headcount. However, the unpredictable nature of the pandemic could again lead to closures, decreased traffic and demand, and increased COVID- 19 19

Note 17 - Extension of the Shar

Note 17 - Extension of the Shareholder Rights Plan	3 Months Ended
	Jul. 31, 2022
Notes to Financial Statements
Shareholder Rights Plan [Text Block]	17. On July 22, 2021, August 2, 2011 ( one August 2, 2011. August 2, 2011 one not If the Rights become exercisable, all holders of Rights, other than the Acquiring Person, will be entitled to acquire shares of the Company’s common stock at a 50% discount. In such situation, Rights held by the Acquiring Person would become void and will not Each Right entitles the registered holder to purchase from the Company one two one two Unless earlier redeemed, terminated or exchanged pursuant to the terms of the Rights Plan, or the Rights Plan is extended, the Rights will expire at the close of business on August 2, 2031. may no

Note 18 - Subsequent Events

Note 18 - Subsequent Events	3 Months Ended
	Jul. 31, 2022
Notes to Financial Statements
Subsequent Events [Text Block]	18. Effective September 1, 2022, The Company evaluated its July 31, 2022 not

Note 4 - Disaggregation of Re_2

Note 4 - Disaggregation of Revenue (Tables)	3 Months Ended
	Jul. 31, 2022
Notes Tables
Disaggregation of Revenue [Table Text Block]	Three Months Ended July 31, 2022 Three Months Ended July 31, 2021 Professional Services Aerospace Products Total Professional Services Aerospace Products Total Geographical Markets North America $ 8,962 $ 5,997 $ 14,959 $ 9,326 $ 7,443 $ 16,769 Europe - 183 183 - 842 842 Asia - 137 137 - 88 88 Australia and Other - 25 25 - 46 46 $ 8,962 $ 6,342 $ 15,304 $ 9,326 $ 8,419 $ 17,745 Major Product Lines Casino Gaming Revenues $ 7,816 $ - $ 7,816 $ 8,189 $ - $ 8,189 Casino Non-Gaming Revenues 1,077 - 1,077 1,066 - 1,066 Professional Services 69 - 69 71 - 71 Aircraft Modification - 3,836 3,836 - 5,782 5,782 Aircraft Avionics - 715 715 - 875 875 Special Mission Electronics - 1,791 1,791 - 1,762 1,762 $ 8,962 $ 6,342 $ 15,304 $ 9,326 $ 8,419 $ 17,745 Contract Types / Revenue Recognition Timing Percentage of completion contracts $ - $ 3,251 $ 3,251 $ - $ 5,275 $ 5,275 Goods or services transferred at a point of sale 8,962 3,091 12,053 9,326 3,144 12,470 $ 8,962 $ 6,342 $ 15,304 $ 9,326 $ 8,419 $ 17,745

Note 5 - Accounts Receivable,_2

Note 5 - Accounts Receivable, Net, Contract Asset and Contract Liability (Tables)	3 Months Ended
	Jul. 31, 2022
Notes Tables
Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block]	July 31, April 30, 2022 2022 Accounts Receivable, net $ 3,615 $ 3,636 Contract Asset 1,144 1,470 Contract Liability 4,164 820

Note 11 - Stock Options and I_2

Note 11 - Stock Options and Incentive Plans (Tables)	3 Months Ended
	Jul. 31, 2022
Notes Tables
Share-Based Payment Arrangement, Option, Activity [Table Text Block]	Number of Shares Weighted Average Grant Date Fair Value Total shares issued 7,900,000 $ 0.42 Forfeited, in prior periods (50,000 ) $ 0.40 Forfeited, during the year ended April 30, 2022 (50,000 ) $ 0.40 Forfeited, during the quarter ended July 31, 2022 (75,000 ) $ 0.40 Total 7,725,000 $ 0.42

Note 12 - Stock Repurchase Pr_2

Note 12 - Stock Repurchase Program (Tables)	3 Months Ended
	Jul. 31, 2022
Notes Tables
Class of Treasury Stock [Table Text Block]	Period Total Number of Shares Purchased Average Price Paid per Share Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs Approximate Dollar Value of Shares That May Yet Be Purchased Under the Plans or Programs Shares purchased in prior periods 3,103,633 $ 0.38 3,103,633 $ 2,823 Quarter ended July 31, 2021 (a) - $ - - $ 2,823 Quarter ended October 31, 2021 (a) 6,290 $ 0.62 6,290 $ 2,819 Quarter ended January 31, 2022 (a) - $ - - $ 2,819 Quarter ended April 30, 2022 (a) 180,503 $ 0.91 180,503 $ 2,655 Quarter ended July 31, 2022 (a) 1,639 $ 0.84 1,639 $ 2,653 Total 3,292,065 $ 0.41 3,292,065

Note 13 - Lease Right-to-use (T

Note 13 - Lease Right-to-use (Tables)	3 Months Ended
	Jul. 31, 2022
Notes Tables
Lessee, Finance Lease, Right of Use Assets [Table Text Block]	July 31, 2022 Lease right-to-use assets $ 3,781 Less accumulated depreciation 558 Total $ 3,223
Finance Lease, Liability, Fiscal Year Maturity [Table Text Block]	2023 $ 260 2024 252 2025 114 2026 116 2027 119 Thereafter 12,918 Total minimum lease payments 13,779 Less amount representing interest 10,252 Present value of net minimum lease payments 3,527 Less current maturities of lease liability 136 Lease liability, net of current maturities $ 3,391
Lease, Cost [Table Text Block]	FinanceLeaseCost July 31, 2022 July 31, 2021 Finance lease cost: Amortization of right-of-use assets $ 46 $ 52 Interest on lease liabilities 45 38 Total finance lease cost $ 91 $ 90 July 31, 2022 July 31, 2021 Weighted average remaining lease term - Financing leases 46 years 44 years Weighted average discount rate - Financing leases 5.8 % 5.0 %

Note 14 - Purchase of Noncont_2

Note 14 - Purchase of Noncontrolling Interest (Tables)	3 Months Ended
	Jul. 31, 2022
Notes Tables
Schedule of Business Acquisitions, by Acquisition [Table Text Block]	Purchase Price Summary: Secured notes payable, net of financing costs $ 7,914 Forgiven note receivable from seller 780 Cash paid 7,659 Total $ 16,353 Accounting Summary: Capital contributed in excess of par $ 6,119 Book basis of the noncontrolling interest in BHCMC, LLC 7,890 Deferred tax asset related to step up in basis 2,344 Total $ 16,353

Note 15 - Segment Reporting a_2

Note 15 - Segment Reporting and Sales by Major Customer (Tables)	3 Months Ended
	Jul. 31, 2022
Notes Tables
Schedule of Segment Reporting Information, by Segment [Table Text Block]	Three Months Ended July 31, 2022 Gaming Aircraft Modification Aircraft Avionics Special Mission Electronics Other Total Revenues from customers $ 8,893 $ 3,836 $ 715 $ 1,791 $ 69 $ 15,304 Interest expense 642 66 - 7 8 723 Depreciation and amortization 626 53 2 39 51 771 Operating income (loss) 2,642 54 48 616 (1,735 ) 1,625 Three Months Ended July 31, 2021 Gaming Aircraft Modification Aircraft Avionics Special Mission Electronics Other Total Revenues from customers $ 9,255 $ 5,782 $ 875 $ 1,762 $ 71 $ 17,745 Interest expense 548 55 - 6 5 614 Depreciation and amortization 578 45 2 33 44 702 Operating income (loss) 3,544 1,143 (19 ) 503 (1,149 ) 4,022
Schedule of Revenue by Major Customers by Reporting Segments [Table Text Block]	Three Months Ended July 31, 2022 Three Months Ended July 31, 2021 Aerospace Products – one customer in the three months ended July 31, 2022, one customer in the three months ended July 31, 2021 11.7 % 10.7 % Professional Services - -

Note 4 - Disaggregation of Re_3

Note 4 - Disaggregation of Revenue - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Jul. 31, 2022	Jul. 31, 2021
Revenues from customers	$ 15,304	$ 17,745
Percentage of Completion Contracts [Member]
Revenues from customers	3,251	5,275
Transferred at Point in Time [Member]
Revenues from customers	12,053	12,470
Casino [Member]
Revenues from customers	7,816	8,189
Casino Non-gaming [Member]
Revenues from customers	1,077	1,066
Professional Services [Member]
Revenues from customers	69	71
Aircraft Modification [Member]
Revenues from customers	3,836	5,782
Aircraft Avionics [Member]
Revenues from customers	715	875
Special Mission Electronics [Member]
Revenues from customers	1,791	1,762
Professional Services [Member]
Revenues from customers	8,962	9,326
Professional Services [Member] | Percentage of Completion Contracts [Member]
Revenues from customers	0	0
Professional Services [Member] | Transferred at Point in Time [Member]
Revenues from customers	8,962	9,326
Professional Services [Member] | Casino [Member]
Revenues from customers	7,816	8,189
Professional Services [Member] | Casino Non-gaming [Member]
Revenues from customers	1,077	1,066
Professional Services [Member] | Professional Services [Member]
Revenues from customers	69	71
Professional Services [Member] | Aircraft Modification [Member]
Revenues from customers	0	0
Professional Services [Member] | Aircraft Avionics [Member]
Revenues from customers	0	0
Professional Services [Member] | Special Mission Electronics [Member]
Revenues from customers	0	0
Aerospace Products [Member]
Revenues from customers	6,342	8,419
Aerospace Products [Member] | Percentage of Completion Contracts [Member]
Revenues from customers	3,251	5,275
Aerospace Products [Member] | Transferred at Point in Time [Member]
Revenues from customers	3,091	3,144
Aerospace Products [Member] | Casino [Member]
Revenues from customers	0	0
Aerospace Products [Member] | Casino Non-gaming [Member]
Revenues from customers	0	0
Aerospace Products [Member] | Professional Services [Member]
Revenues from customers	0	0
Aerospace Products [Member] | Aircraft Modification [Member]
Revenues from customers	3,836	5,782
Aerospace Products [Member] | Aircraft Avionics [Member]
Revenues from customers	715	875
Aerospace Products [Member] | Special Mission Electronics [Member]
Revenues from customers	1,791	1,762
North America [Member]
Revenues from customers	14,959	16,769
North America [Member] | Professional Services [Member]
Revenues from customers	8,962	9,326
North America [Member] | Aerospace Products [Member]
Revenues from customers	5,997	7,443
Europe [Member]
Revenues from customers	183	842
Europe [Member] | Professional Services [Member]
Revenues from customers	0	0
Europe [Member] | Aerospace Products [Member]
Revenues from customers	183	842
Asia [Member]
Revenues from customers	137	88
Asia [Member] | Professional Services [Member]
Revenues from customers	0	0
Asia [Member] | Aerospace Products [Member]
Revenues from customers	137	88
Australia and Other [Member]
Revenues from customers	25	46
Australia and Other [Member] | Professional Services [Member]
Revenues from customers	0	0
Australia and Other [Member] | Aerospace Products [Member]
Revenues from customers	$ 25	$ 46

Note 5 - Accounts Receivable,_3

Note 5 - Accounts Receivable, Net, Contract Asset and Contract Liability (Details Textual) - USD ($) $ in Thousands	3 Months Ended
	Jul. 31, 2022	Jul. 31, 2021	Apr. 30, 2022
Accounts Receivable, after Allowance for Credit Loss, Total	$ 3,615		$ 3,636
Accounts Receivable, Allowance for Credit Loss, Ending Balance	205		205
Contract with Customer, Asset, after Allowance for Credit Loss, Total	1,144		$ 1,470
Increase (Decrease) in Contract with Customer, Asset	(326)	$ 157
Increase (Decrease) in Contract with Customer, Liability	$ 3,344	$ (2,994)

Note 5 - Accounts Receivable,_4

Note 5 - Accounts Receivable, Net, Contract Asset and Contract Liability - Accounts Receivable, Net, Contract Asset and Contract Liability (Details) - USD ($) $ in Thousands	Jul. 31, 2022	Apr. 30, 2022
Accounts Receivable, net	$ 3,615	$ 3,636
Contract Asset	1,144	1,470
Contract Liability	$ 4,164	$ 820

Note 7 - Inventories (Details T

Note 7 - Inventories (Details Textual) - USD ($) $ in Thousands	3 Months Ended
	Jul. 31, 2022	Apr. 30, 2022
Duration During Which Inventory If Inactive Taken as Obsolete (Year)	5 years
Inventory Valuation Reserves	$ 240	$ 240

Note 8 - Research and Develop_2

Note 8 - Research and Development (Details Textual) - USD ($) $ in Thousands	3 Months Ended
	Jul. 31, 2022	Jul. 31, 2021
Research and Development Expense, Total	$ 631	$ 326

Note 9 - Debt (Details Textual)

Note 9 - Debt (Details Textual) $ in Thousands	1 Months Ended	3 Months Ended
	May 31, 2020 USD ($)	Jul. 31, 2022 USD ($)
Line of Credit Facility, Interest Rate at Period End		3.65%
Line of Credit Facility, Maximum Borrowing Capacity		$ 2,000
Line of Credit Facility, Remaining Borrowing Capacity		2,000
Notes Collateralized by BHCMC's Assets and Compensation Due under State Management Contract Due December 2025 [Member]
Notes Payable, Total		32,229
Debt Issuance Costs, Net, Total		$ 252
Debt Instrument, Interest Rate, Stated Percentage		5.32%
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid		$ 19,250
Number of Notes		1
Notes Collateralized by BHCMC's Assets and Compensation Due under State Management Contract Due December 2027 [Member]
Notes Payable, Total		$ 12,097
Debt Issuance Costs, Net, Total		$ 118
Debt Instrument, Interest Rate, Stated Percentage		5.75%
Debt Instrument, Term (Year)		5 years
Debt Service Coverage Ratio		1.30%
Debt Instrument, Aggregate Unrestricted Cash Requirement		$ 1,500
Notes Collateralized by Aircraft Security Agreements, Due January 2023 [Member]
Notes Payable, Total		$ 377
Debt Instrument, Interest Rate, Stated Percentage		6.25%
Note Collateralized by Real Estate Due June 2024 [Member]
Notes Payable, Total		$ 175
Debt Instrument, Interest Rate, Stated Percentage		6.25%
Number of Notes		1
Note One Collateralized by Real Estate Due March 2029 [Member]
Notes Payable, Total		$ 1,067
Debt Instrument, Interest Rate, Stated Percentage		1.75%
Note Two Collateralized by Real Estate Due March 2029 [Member]
Notes Payable, Total		$ 489
Debt Instrument, Interest Rate, Stated Percentage		1.75%
Note Collateralized by Aircraft Security Agreement [Member] | Patriots Bank [Member]
Notes Payable, Total		$ 1,160
Debt Instrument, Interest Rate, Stated Percentage		4.35%
Note Collateralized by Equipment Due October 2025 [Member]
Notes Payable, Total		$ 50
Debt Instrument, Interest Rate, Stated Percentage		8.13%
Paycheck Protection Program CARES Act [Member]
Proceeds from Issuance of Long-term Debt, Total	$ 2,001

Note 10 - Other Assets (Details

Note 10 - Other Assets (Details Textual) $ in Thousands	3 Months Ended
	Jul. 31, 2022 USD ($)
Other Assets, Miscellaneous, Total	$ 128
Kansas Expanded Lottery Act Contract Privilege [Member]
Other Intangible Assets, Net	5,500
Intangible Gaming Support Items [Member]
Other Intangible Assets, Net	$ 6,224
Finite-Lived Intangible Asset, Useful Life (Year)	3 years
JET Autopilot Intellectual Property [Member]
Other Intangible Assets, Net	$ 1,417
Finite-Lived Intangible Asset, Useful Life (Year)	15 years

Note 11 - Stock Options and I_3

Note 11 - Stock Options and Incentive Plans (Details Textual) - USD ($) $ / shares in Units, $ in Thousands			1 Months Ended	3 Months Ended
	Mar. 17, 2020	Apr. 12, 2019	Jul. 31, 2022	Jul. 31, 2022	Jul. 31, 2021	Nov. 30, 2016
Share-Based Payment Arrangement, Expense				$ 484	$ 148
Stock Issued During Period, Value, Issued for Services				$ 352
Butler National Corporation 2016 Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares)						12,500,000
Stock Issued During Period, Value, Restricted Stock Award, Gross	$ 2,000	$ 950
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares)				0
Butler National Corporation 2016 Equity Incentive Plan [Member] | Director [Member]
Stock Issued During Period, Shares, Issued for Services (in shares)			400,000
Shares Issued, Price Per Share (in dollars per share)			$ 0.88	$ 0.88
Stock Issued During Period, Value, Issued for Services			$ 352
Butler National Corporation 2016 Equity Incentive Plan [Member] | Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)	5,000,000	2,500,000
Share Price (in dollars per share)	$ 0.41	$ 0.38
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)		5 years

Note 11 - Stock Options and I_4

Note 11 - Stock Options and Incentive Plans - Restricted Stock Options Activity (Details) - $ / shares	3 Months Ended	12 Months Ended
	Jul. 31, 2022	Apr. 30, 2022	Apr. 30, 2021
Outstanding, shares (in shares)			7,900,000
Outstanding, weighted average fair value (in dollars per share)			$ 0.42
Forfeited, shares (in shares)	(75,000)	(50,000)	(50,000)
Forfeited, weighted average fair value (in dollars per share)	$ 0.40	$ 0.40	$ 0.40
Outstanding, shares (in shares)	7,725,000
Outstanding, weighted average fair value (in dollars per share)	$ 0.42

Note 12 - Stock Repurchase Pr_3

Note 12 - Stock Repurchase Program (Details Textual) $ in Millions	Jul. 31, 2022 USD ($)
Stock Repurchase Program, Authorized Amount	$ 4

Note 12 - Stock Repurchase Pr_4

Note 12 - Stock Repurchase Program - Schedule of Stock Purchases (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended										12 Months Ended	60 Months Ended
	Jul. 31, 2022	[1]	Apr. 30, 2022	[1]	Jan. 31, 2022	[1]	Oct. 31, 2021	[1]	Jul. 31, 2021	[1]	Jul. 30, 2022	Apr. 30, 2021
Number of Shares Purchased (in shares)	1,639		180,503		0		6,290		0		3,292,065	3,103,633
Average Price Paid per Share (in dollars per share)			$ 0.91		$ 0		$ 0.62		$ 0		$ 0.41	$ 0.38
Number of Shares Purchased as Part of Publicly Announced Plans or Programs (in shares)	1,639		180,503		0		6,290		0		3,292,065	3,103,633
Approximate Dollar Value of Shares That May Yet Be Purchased Under the Plan or Programs	$ 2,653		$ 2,655		$ 2,819		$ 2,819		$ 2,823			$ 2,823
[1]These shares of common stock were purchased through a private transaction

Note 13 - Lease Right-to-use (D

Note 13 - Lease Right-to-use (Details Textual)	Jul. 31, 2022
Casino, Hangar, and Office Space, Three [Member]
Lessee, Finance Lease, Term of Contract (Year)	50 years
Casino, Hangar, and Office Space, One [Member]
Lessee, Finance Lease, Term of Contract (Year)	5 years
Casino, Hangar, and Office Space, Two [Member]
Lessee, Finance Lease, Term of Contract (Year)	46 years

Note 13 - Lease Right-to-use -

Note 13 - Lease Right-to-use - Finance Lease Right-of-use Assets (Details) - USD ($) $ in Thousands	Jul. 31, 2022	Apr. 30, 2022
Lease right-to-use assets	$ 3,781	$ 3,240
Less accumulated depreciation	558
Total	$ 3,223

Note 13 - Lease Right-to-use _2

Note 13 - Lease Right-to-use - Future Minimum Lease Payments (Details) - USD ($) $ in Thousands	Jul. 31, 2022	Apr. 30, 2022
2023	$ 260
2024	252
2025	114
2026	116
2027	119
Thereafter	12,918
Total minimum lease payments	13,779
Less amount representing interest	10,252
Present value of net minimum lease payments	3,527
Less current maturities of lease liability	136	$ 106
Lease liability, net of current maturities	$ 3,391	$ 2,899

Note 13 - Lease Right-to-use _3

Note 13 - Lease Right-to-use - Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended
	Jul. 31, 2022	Jul. 31, 2021
Amortization of right-of-use assets	$ 46	$ 52
Interest on lease liabilities	45	38
Total finance lease cost	$ 91	$ 90
Weighted average remaining lease term - Financing leases (Year)	46 years	44 years
Weighted average discount rate - Financing leases	5.80%	5%

Note 14 - Purchase of Noncont_3

Note 14 - Purchase of Noncontrolling Interest (Details Textual) - BNSC [Member] - USD ($) $ in Millions		12 Months Ended
	Oct. 18, 2021	Dec. 31, 2020	Jul. 31, 2022
Academy Bank, N.A. [Member] | Manager Loan [Member]
Long-Term Debt, Total			$ 12.1
Debt Instrument, Interest Rate, Stated Percentage	5.75%
BHCMC, LLC [Member]
Business Combination, Step Acquisition, Equity Interest in Acquiree, including Subsequent Acquisition, Percentage, Total	100%
Business Combination, Consideration Transferred, Total	$ 16.4
BHCMC, LLC [Member] | Academy Bank, N.A. [Member] | Manager Loan [Member]
Business Combination, Consideration Transferred, Liabilities Incurred	7	$ 35
BHCMC, LLC [Member] | Commercial Loan [Member] | Academy Bank, N.A. [Member]
Business Combination, Consideration Transferred, Liabilities Incurred	$ 8

Note 14 - Purchase of Noncont_4

Note 14 - Purchase of Noncontrolling Interest - Purchase Price and Accounting of Transaction (Details) - BHCMC [Member] - BNSC [Member] $ in Thousands	Oct. 18, 2021 USD ($)
Secured notes payable, net of financing costs	$ 7,914
Forgiven note receivable from seller	780
Cash paid	7,659
Business Combination, Consideration Transferred, Total	16,353
Capital contributed in excess of par	6,119
Book basis of the noncontrolling interest in BHCMC, LLC	7,890
Deferred tax asset related to step up in basis	2,344
Total	$ 16,353

Note 15 - Segment Reporting a_3

Note 15 - Segment Reporting and Sales by Major Customer (Details Textual)	3 Months Ended
	Jul. 31, 2022
Number of Operating Segments	2
Customer Concentration Risk [Member] | Revenue Benchmark [Member] | The Five Aerospace Customers [Member]
Concentration Risk, Percentage	28.70%
Number of Major Customers	5
Customer Concentration Risk [Member] | Revenue Benchmark [Member] | Top Customer [Member]
Concentration Risk, Percentage	11.70%
Customer Concentration Risk [Member] | Revenue Benchmark [Member] | Next Top Four Customers [Member] | Minimum [Member]
Concentration Risk, Percentage	2.20%
Customer Concentration Risk [Member] | Revenue Benchmark [Member] | Next Top Four Customers [Member] | Maximum [Member]
Concentration Risk, Percentage	9.80%

Note 15 - Segment Reporting a_4

Note 15 - Segment Reporting and Sales by Major Customer - Professional Services (Details) - USD ($) $ in Thousands	3 Months Ended
	Jul. 31, 2022	Jul. 31, 2021
Revenues from customers	$ 15,304	$ 17,745
Interest expense	723	614
Depreciation and amortization	771	702
Operating income (loss)	1,625	4,022
Gaming [Member]
Revenues from customers	8,893	9,255
Interest expense	642	548
Depreciation and amortization	626	578
Operating income (loss)	2,642	3,544
Aircraft Modification [Member]
Revenues from customers	3,836	5,782
Interest expense	66	55
Depreciation and amortization	53	45
Operating income (loss)	54	1,143
Aircraft Avionics [Member]
Revenues from customers	715	875
Interest expense	0	0
Depreciation and amortization	2	2
Operating income (loss)	48	(19)
Special Mission Electronics [Member]
Revenues from customers	1,791	1,762
Interest expense	7	6
Depreciation and amortization	39	33
Operating income (loss)	616	503
Product and Service, Other [Member]
Revenues from customers	69	71
Interest expense	8	5
Depreciation and amortization	51	44
Operating income (loss)	$ (1,735)	$ (1,149)

Note 15 - Segment Reporting a_5

Note 15 - Segment Reporting and Sales by Major Customer - Schedule of Revenue by Major Customers by Reporting Segments (Details)	3 Months Ended
	Jul. 31, 2022	Jul. 31, 2021
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Aerospace Products [Member]
Aerospace Products – one customer in the three months ended July 31, 2022, one customer in the three months ended July 31, 2021	11.70%	10.70%

Note 17 - Extension of the Sh_2

Note 17 - Extension of the Shareholder Rights Plan (Details Textual) - $ / shares	Aug. 02, 2011	Jul. 31, 2022	Apr. 30, 2022
Dividends, Stock, Issued Per Share (in shares)	1
Preferred Share Purchase Right, Exercisable, Percentage of Common Stock Outstanding	15%
Preferred Share Purchase Right, Purchase Discount	50%
Preferred Stock, Par or Stated Value Per Share (in dollars per share)		$ 5	$ 5
Series C Preferred Stock [Member]
Preferred Stock Purchase Right, Shares Exercisable (in shares)	0.02
Preferred Stock, Par or Stated Value Per Share (in dollars per share)	$ 5
Preferred Stock, Purchase Price Per 0.02 Share (in dollars per share)	$ 10