George Risk Industries (RSKIA) 10-K 10 Aug 16 2016 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($)	12 Months Ended
	Apr. 30, 2016	Jul. 29, 2016
Document And Entity Information
Entity Registrant Name	GEORGE RISK INDUSTRIES, INC.
Entity Central Index Key	84,112
Document Type	10-K
Trading Symbol	GRI
Document Period End Date	Apr. 30, 2016
Amendment Flag	false
Current Fiscal Year End Date	--04-30
Entity a Well-known Seasoned Issuer	No
Entity a Voluntary Filer	No
Entity's Reporting Status Current	Yes
Entity Filer Category	Smaller Reporting Company
Entity Public Float		$ 13,277,116
Entity Common Stock, Shares Outstanding		5,021,660
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2,016

Balance Sheets

Balance Sheets - USD ($)	Apr. 30, 2016	Apr. 30, 2015
Current Assets:
Cash and cash equivalents	$ 5,918,000	$ 5,691,000
Investments and securities	24,530,000	25,266,000
Accounts receivable:
Trade, net of $74 and $160 doubtful account allowance for 2016 and 2015, respectively	1,912,000	2,007,000
Other		3,000
Note receivable, current		1,000
Income tax overpayment	199,000	534,000
Inventories, net	2,964,000	2,275,000
Prepaid expenses	68,000	108,000
Total Current Assets	35,591,000	35,885,000
Property and Equipment, net, at cost	756,000	661,000
Other Assets
Investment in Limited Land Partnership, at cost	253,000	253,000
Projects in process	68,000	56,000
Other		1,000
Total Other Assets	321,000	310,000
TOTAL ASSETS	36,668,000	36,856,000
Current Liabilities
Accounts payable, trade	31,000	110,000
Dividends payable	1,255,000	1,099,000
Accrued expenses:
Payroll and related expenses	320,000	306,000
Deferred income taxes	87,000	857,000
Total Current Liabilities	1,693,000	2,372,000
Long-Term Liabilities
Deferred income taxes	191,000	115,000
Total Long-Term Liabilities	191,000	115,000
Stockholders' Equity
Convertible preferred stock, 1,000,000 shares authorized, Series 1-noncumulative, $20 stated value, 25,000 shares authorized, 4,100 issued and outstanding	99,000	99,000
Common stock, Class A, $.10 par value, 10,000,000 shares authorized, 8,502,881 shares issued and outstanding	850,000	850,000
Additional paid-in capital	1,736,000	1,736,000
Accumulated other comprehensive income	347,000	1,282,000
Retained earnings	35,337,000	33,960,000
Less: treasury stock, 3,481,021 and 3,477,156 shares, at cost	(3,585,000)	(3,558,000)
Total Stockholders' Equity	34,784,000	34,369,000
TOTAL LIABILITES AND STOCKHOLDERS' EQUITY	$ 36,668,000	$ 36,856,000

Balance Sheets (Parenthetical)

Balance Sheets (Parenthetical) - USD ($)	Apr. 30, 2016	Apr. 30, 2015
Allowance for doubtful account receivable	$ 74	$ 160
Convertible preferred stock, authorized	1,000,000	1,000,000
Common stock, par value (in dollars per share)	$ 0.10	$ 0.10
Common stock, authorized	10,000,000	10,000,000
Common stock, issued	8,502,881	8,502,881
Common stock, outstanding	8,502,881	8,502,881
Treasury stock, at cost	3,481,021	3,477,156
Series I Noncumulative Preferred Stock [Member]
Convertible preferred stock, authorized	25,000	25,000
Convertible preferred stock, stated value (in dollars per share)	$ 20	$ 20
Convertible preferred stock, issued	4,100	4,100
Convertible preferred stock, outstanding	4,100	4,100

Income Statements

Income Statements - USD ($)	12 Months Ended
	Apr. 30, 2016	Apr. 30, 2015
Income Statement [Abstract]
Net Sales	$ 11,240,000	$ 11,903,000
Less: Cost of Goods Sold	(4,977,000)	(5,466,000)
Gross Profit	6,263,000	6,437,000
Operating Expenses:
General and Administrative	853,000	817,000
Sales	1,937,000	1,960,000
Engineering	92,000	87,000
Rent Paid to Related Parties	19,000	19,000
Total Operating Expenses	2,901,000	2,883,000
Income From Operations	3,362,000	3,554,000
Other Income (Expense)
Other Income	16,000	5,000
Interest Expense		(3,000)
Dividend and Interest Income	867,000	820,000
Gain on Investments	72,000	304,000
Gain on Sale of Assets		5,000
Nonoperating Income (Expense)	955,000	1,131,000
Income Before Provisions for Income Taxes	4,317,000	4,685,000
Provisions for Income Taxes
Current Expense	1,252,000	1,474,000
Deferred tax (benefit) expense	(21,000)	59,000
Total Income Tax Expense	1,231,000	1,533,000
Net Income	$ 3,086,000	$ 3,152,000
Earnings Per Share of Common Stock
Basic (in dollars per share)	$ 0.61	$ 0.63
Diluted (in dollars per share)	$ 0.61	$ 0.62
Weighted Average Number of Common Shares Outstanding (in shares)	5,024,428	5,029,343

Statements of Comprehensive Inc

Statements of Comprehensive Income - USD ($)	12 Months Ended
	Apr. 30, 2016	Apr. 30, 2015
Statements Of Comprehensive Income
Net Income	$ 3,086,000	$ 3,152,000
Unrealized gain (loss) on securities:
Unrealized holding gains (losses) arising during period	(1,545,000)	816,000
Less: reclassification adjustment for (gains) losses included in net income	(62,000)	(711,000)
Income tax expense related to other comprehensive income	672,000	(45,000)
Other Comprehensive Income	(935,000)	60,000
Comprehensive Income	$ 2,151,000	$ 3,212,000

Statements of Stockholders' Equ

Statements of Stockholders' Equity - USD ($)	Series 1 - Noncumulative Preferred Stock [Member]	Common Stock Class A [Member]	Paid-In Capital [Member]	Treasury Stock (Common Class A) [Member]	Accumulated Other Comprehensive Income [Member]	Retained Earnings [Member]	Total
Balances at beginning at Apr. 30, 2014	$ 99,000	$ 850,000	$ 1,736,000	$ (3,525,000)	$ 1,222,000	$ 32,417,000	$ 32,799,000
Balances at beginning (in shares) at Apr. 30, 2014	4,100	8,502,881		3,472,706
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Purchases of common stock				$ (33,000)			(33,000)
Purchases of common stock (in shares)				4,450
Dividend declared						(1,609,000)	(1,609,000)
Unrealized gain (loss), net of tax effect					60,000		60,000
Net Income						3,152,000	3,152,000
Balances at End at Apr. 30, 2015	$ 99,000	$ 850,000	1,736,000	$ (3,558,000)	1,282,000	33,960,000	34,369,000
Balances at End (in shares) at Apr. 30, 2015	4,100	8,502,881		3,477,156
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Purchases of common stock				$ (27,000)			(27,000)
Purchases of common stock (in shares)				3,865
Dividend declared						(1,709,000)	(1,709,000)
Unrealized gain (loss), net of tax effect					(935,000)		(935,000)
Net Income						3,086,000	3,086,000
Balances at End at Apr. 30, 2016	$ 99,000	$ 850,000	$ 1,736,000	$ (3,585,000)	$ 347,000	$ 35,337,000	$ 34,784,000
Balances at End (in shares) at Apr. 30, 2016	4,100	8,502,881		3,481,021

Statements of Stockholders' Eq7

Statements of Stockholders' Equity (Parenthetical) - $ / shares	12 Months Ended
	Apr. 30, 2016	Apr. 30, 2015
Statement of Stockholders' Equity [Abstract]
Dividend declared (in dollars per share)	$ 0.34	$ 0.32

Statements of Cash Flows

Statements of Cash Flows - USD ($)	12 Months Ended
	Apr. 30, 2016	Apr. 30, 2015
Cash Flows From Operating Activities:
Net Income	$ 3,086,000	$ 3,152,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	182,000	149,000
(Gain) loss on sale of investments	(72,000)	(304,000)
(Gain) Loss on sale of property and equipment		(5,000)
Bad debt expense	(2,000)	(4,000)
Reserve for obsolete inventory	6,000	(116,000)
Deferred income taxes	(21,000)	59,000
(Increase) decrease in:
Accounts receivable	98,000	31,000
Inventories	(695,000)	74,000
Prepaid expenses	40,000	24,000
Employee receivables	2,000
Income tax overpayment	335,000	(609,000)
Increase (decrease) in:
Accounts payable	(79,000)	1,000
Accrued expense	14,000	28,000
Net cash provided by (used in) operating activities	2,894,000	2,480,000
Cash Flows From Investing Activities:
Other assets manufactured & purchased	(12,000)	(15,000)
Proceeds from sales of assets		5,000
(Purchase) of property and equipment	(276,000)	(186,000)
Proceeds from sale of marketable securities	64,000	33,000
(Purchase) of marketable securities	(864,000)	(986,000)
(Purchase) of long-term investment		(15,000)
(Loans) made to employees		(2,000)
Collections of loans to employees	1,000	1,000
Net cash provided by (used in) investing activities	(1,087,000)	(1,165,000)
Cash Flows From Financing Activities:
(Purchase) of treasury stock	(27,000)	(33,000)
Dividends paid	(1,553,000)	(1,463,000)
Net cash provided by (used in) financing activities	(1,580,000)	(1,496,000)
Net Increase (Decrease) in Cash and Cash Equivalents	227,000	(181,000)
Cash and Cash Equivalents, beginning of period	5,691,000	5,872,000
Cash and Cash Equivalents, end of period	5,918,000	5,691,000
Cash payments for:
Income taxes paid	1,380,000	2,050,000
Interest expense		$ 3,000
Cash receipts for:
Income taxes	$ 447,000

Nature of Business and Summary

Nature of Business and Summary of Significant Accounting Policies	12 Months Ended
	Apr. 30, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Nature of Business and Summary of Significant Accounting Policies	1. Nature of Business and Summary of Significant Accounting Policies Nature of Business Cash and Cash Equivalents Allowance for Doubtful Accounts The company records an allowance for doubtful accounts based on an analysis of specifically identified customer balances. The company has a limited number of customers with individually large amounts due at any given date. Any unanticipated change in any one of these customers’ credit worthiness or other matters affecting the collectability of amounts due from such customers could have a material effect on the results of operations in the period in which such changes or events occur. After all attempts to collect a receivable have failed, the receivable is written off. The company has recorded an allowance for doubtful accounts of $74 for the year ended April 30, 2016 and $160 for the year ended April 30, 2015. For the fiscal year ended April 30, 2016, bad debt expense was a net credit of $2,489 due to bad debt recoveries during the year. For the fiscal year ended April 30, 2015, bad debt expense was a net credit of $3,727. Inventories Property and Equipment Classification Useful Life 2016 2015 Dies, jigs, and molds 3–7 $ 1,685,000 $ 1,652,000 Machinery and equipment 5–10 1,156,000 1,152,000 Furniture and fixtures 5–10 145,000 145,000 Leasehold improvements 5–32 214,000 189,000 Buildings 20–39 659,000 659,000 Automotive 3–5 76,000 74,000 Software 2–5 353,000 140,000 Land N/A 13,000 13,000 Total 4,301,000 4,024,000 Accumulated depreciation (3,545,000 ) (3,363,000 ) Net $ 756,000 $ 661,000 Depreciation expense of $182,000 and $149,000 was charged to operations for the years ended April 30, 2016 and 2015, respectively. Maintenance and repairs are charged to expense as incurred, and expenditures for major improvements are capitalized. When assets are retired or otherwise disposed of, the property accounts are relieved of costs and accumulated depreciation and any resulting gain or loss is credited or charged to operations. Advertising— Income Taxes The flow-through method of accounting for tax credits has been adopted by the company. Such credits are reflected as a reduction of the provision for income taxes in the year in which they become available. Net Income Per Common Share Accounting Estimates Financial Instruments Revenue Recognition Comprehensive Income Segment Reporting and Related Information Reclassifications Recently Issued Accounting Pronouncements — In May 2014, the FASB issued Accounting Standards Update No. 2014-09, Revenue from Contracts with Customers. The objective of this update is to provide a robust framework for addressing revenue recognition issues and, upon its effective date, replaces almost all existing revenue recognition guidance. This update is effective in annual reporting periods beginning after December 15, 2017 and the interim periods within that year. The Company is evaluating the impact of this update on the Company’s financial statements. In January 2015, the FASB issued Accounting Standards Update No. 2015-04, “Requirement that All Deferred Income Tax Assets and Liabilities Be Presented as Non-Current in a Classified Balance Sheet”. The objective of this update is to require deferred tax liabilities and assets be classified entirely as non-current in a classified balance sheet. This update is effective in annual reporting periods beginning after December 15, 2016 and the interim periods within that year. The Company is evaluating the impact of this update on the Company’s financial statements. In February of 2016, the FASB issued ASU 2016-02 Leases

Inventories

Inventories	12 Months Ended
	Apr. 30, 2016
Inventory Disclosure [Abstract]
Inventories	2. Inventories Inventories at April 30, 2016 and 2015, consisted of the following: 2016 2015 Raw materials $ 1,948,000 $ 1,557,000 Work in process 641,000 466,000 Finished goods 448,000 318,000 3,037,000 2,341,000 Less: allowance for obsolete inventory (73,000 ) (66,000 ) Totals $ 2,964,000 $ 2,275,000

Investments

Investments	12 Months Ended
	Apr. 30, 2016
Investments, Debt and Equity Securities [Abstract]
Investments	3. Investments The Company has investments in publicly traded equity securities, corporate bonds, state and municipal debt securities, real estate investment trusts, money markets, certificates of deposits and hedge funds. The investments in securities, which include all investments except for the hedge funds, are classified as available-for-sale securities, and are reported at fair value. Available-for-sale investments in debt securities mature between June 2016 and November 2048. The Company uses the average cost method to determine the cost of securities sold and the amount reclassified out of accumulated other comprehensive income into earnings. Unrealized gains and losses are excluded from earnings and reported separately as a component of stockholders’ equity. Dividend and interest income are reported as earned. As of April 30, 2016, investments consisted of the following: Gross Gross Cost Unrealized Unrealized Reported Basis Gains Losses Value Municipal bonds $ 6,489,000 $ 133,000 $ (239,000 ) $ 6,383,000 Corporate bonds $ 130,000 $ — $ (4,000 ) $ 126,000 REITs $ 42,000 $ 4,000 $ (2,000 ) $ 44,000 Equity securities $ 14,796,000 $ 1,187,000 $ (484,000 ) $ 15,499,000 Money Markets and CDs $ 2,478,000 $ — $ — $ 2,478,000 Total $ 23,935,000 $ 1,324,000 $ (729,000 ) $ 24,530,000 The Company evaluates all investments for other-than temporary declines in fair value, which are defined as when the cost basis exceeds the fair value for approximately one year. The Company also evaluates the nature of the investment, cause of impairment and number of investments that are in an unrealized position. When other than a temporary decline is identified, the Company will decrease the cost of the investment to the new fair value and recognize a loss. The investments are periodically evaluated to determine if impairment changes are required. As a result of this standard, management recorded impairment losses of $69,000 for the year ended April 30, 2016 and $25,000 for the year ended April 30, 2015. The following table shows the investments with unrealized losses that are not deemed to be other-than-temporarily impaired, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, at April 30, 2016. Less than 12 months 12 months or greater Total Description Fair Value Unrealized Fair Value Unrealized Fair Value Unrealized Municipal bonds $ 3,129,000 $ (215,000 ) $ 609,000 $ (24,000 ) $ 3,738,000 $ (239,000 ) Corporate bonds $ — $ — $ 27,000 $ (4,000 ) $ 27,000 $ (4,000 ) REITs $ 27,000 $ (2,000 ) $ — $ — $ 27,000 $ (2,000 ) Equity securities $ 5,018,000 $ (323,000 ) $ 1,171,000 $ (161,000 ) $ 6,189,000 $ (484,000 ) Total $ 8,174,000 $ (540,000 ) $ 1,807,000 $ (189,000 ) $ 9,981,000 $ (729,000 ) Municipal Bonds The unrealized losses on the Company’s investments in municipal bonds were caused by interest rate increases. The contractual terms of these investments do not permit the issuer to settle the securities at a price less than the amortized cost of the investment. Because the Company has the ability to hold these investments until a recovery of fair value occurs, which may be maturity, the Company does not consider these investments to be other-than-temporarily impaired at April 30, 2016. Corporate Bonds The Company’s unrealized loss on investments in corporate bonds relates to one bond. The contractual term of this investment does not permit the issuer to settle the security at a price less than the amortized cost of the investment. Because the Company has the ability to hold this investment until a recovery of fair value, which may be maturity, the Company does not consider this investment to be other-than-temporarily impaired at April 30, 2016. Marketable Equity Securities and REITs The Company’s investments in marketable equity securities and REITs consist of a wide variety of companies. Investments in these companies include growth, growth income, and foreign investment objectives. Management has evaluated the individual holdings, and does not consider these investments to be other-than-temporarily impaired at April 30, 2016.

Retirement Benefit Plan

Retirement Benefit Plan	12 Months Ended
	Apr. 30, 2016
Compensation and Retirement Disclosure [Abstract]
Retirement Benefit Plan	4. Retirement Benefit Plan On January 1, 1998, the company adopted the George Risk Industries, Inc. Retirement Savings Plan (the “Plan”). The Plan is a defined contribution savings plan designed to provide retirement income to eligible employees of the company and its subsidiaries. The Plan is intended to be qualified under Section 401(k) of the Internal Revenue Code of 1986, as amended. It is funded by voluntary pre-tax contributions from eligible employees who may contribute a percentage of their eligible compensation, limited and subject to statutory limits. Employees are eligible to participate in the Plan when they have attained the age of 21 and completed one thousand hours of service in any plan year with the company. Upon leaving the company, each participant is 100% vested with respect to the participants’ contributions while the company’s matching contributions are vested over a six-year period in accordance with the Plan document. Contributions are invested, as directed by the participant, in investment funds available under the Plan. Matching contributions of approximately $10,000 were paid for each of the fiscal years ending April 30, 2016 and 2015, respectively.

Stockholders' Equity

Stockholders' Equity	12 Months Ended
	Apr. 30, 2016
Stockholders' Equity Note [Abstract]
Stockholders' Equity	5. Stockholders’ Equity Preferred Stock Convertible preferred stock without par value may be issued from time to time as determined by the board of directors. Shares of different series shall be of equal rank but may vary as to terms and conditions. Class A Common Stock During the fiscal year ended April 30, 2016, the Company purchased 3,865 shares of Class A common stock. This was initiated by stockholders contacting the company. Stock Transfer Agent

Earnings Per Share

Earnings Per Share	12 Months Ended
	Apr. 30, 2016
Earnings Per Share of Common Stock
Earnings Per Share	6. Earnings Per Share Basic and diluted earnings per share, assuming convertible preferred stock was converted for each period presented are: April 30, 2016 Income Shares Per-Share (Numerator) (Denominator) Amount Net income $ 3,086,000 Basic EPS $ 3,086,000 5,024,428 $ .6142 Effect of dilutive Convertible Preferred Stock — 20,500 (.0025 ) Diluted EPS $ 3,086,000 5,044,928 $ .6117 April 30, 2015 Income Shares Per-Share (Numerator) (Denominator) Amount Net income $ 3,152,000 Basic EPS $ 3,152,000 5,029,343 $ .6267 Effect of dilutive Convertible Preferred Stock — 20,500 (.0025 ) Diluted EPS $ 3,152,000 5,049,813 $ .6242

Commitments, Contingencies, and

Commitments, Contingencies, and Related Party Transactions	12 Months Ended
	Apr. 30, 2016
Commitments and Contingencies Disclosure [Abstract]
Commitments, Contingencies, and Related Party Transactions	7. Commitments, Contingencies, and Related Party Transactions The Company leases a building from Bonnie Risk. Bonnie Risk is a majority stockholder, a director and employee of the company. This building contains the Company’s sales and accounting departments, maintenance department, engineering department and some production facilities. This lease requires a minimum payment of $1,535 on a month-to-month basis. The total lease expense for this arrangement was $18,420 for the fiscal years ended April 30, 2016 and 2015. One of the directors of the board, Joel Wiens, is the principal shareholder of FirsTier Bank. FirsTier Bank is the financial institution the company uses for its day to day banking operations. Year end balances of accounts held at this bank are $4,304,000 for the year ended April 30, 2016 and $4,647,000 for the year ended April 30, 2015. The Company also received interest income from FirsTier Bank in the amount of approximately $1,500 for the years ended April 30, 2016 and 2015.

Income Taxes

Income Taxes	12 Months Ended
	Apr. 30, 2016
Income Tax Disclosure [Abstract]
Income Taxes	8. Income Taxes Reconciliation of income taxes with Federal and State taxable income: 2016 2015 Income before income taxes $ 4,317,000 $ 4,685,000 State income tax deduction (236,000 ) (279,000 ) Interest and dividend income (638,000 ) (617,000 ) Domestic production activities deduction (312,000 ) (347,000 ) Nondeductible expenses and timing differences 18,000 53,000 Taxable income $ 3,149,000 $ 3,495,000 The following schedule reconciles the provision for income taxes to the amount computed by applying the statutory rate to income before income taxes: Income tax provision at statutory rate $ 1,805,000 $ 1,958,000 Increase (decrease) income taxes resulting from: State income taxes (99,000 ) (117,000 ) Interest and dividend income (267,000 ) (258,000 ) Domestic production activities (130,000 ) (145,000 ) Deferred taxes (21,000 ) 59,000 Other temporary and permanent differences (57,000 ) 36,000 Income tax expense $ 1,231,000 $ 1,533,000 Federal tax rate 34.0 % 34.0 % State tax rate 7.8 % 7.8 % Blended statutory rate 41.8 % 41.8 % Deferred tax assets (liabilities) consist of the following components at April 30, 2016 and 2015: Deferred tax current assets (liabilities): Inventory valuation 30,000 27,000 263A adjustment 98,000 — Accrued vacation 34,000 37,000 Accumulated unrealized (gain)/loss on investments (249,000 ) (921,000 ) Net deferred tax assets (liabilities) $ (87,000 ) $ (857,000 ) Deferred long-term tax assets (liabilities): Depreciation (191,000 ) (115,000 ) Net deferred long-term tax assets (liabilities) $ (191,000 ) $ (115,000 )

Business Segments

Business Segments	12 Months Ended
	Apr. 30, 2016
Segment Reporting [Abstract]
Business Segments	9. Business Segments The following is financial information relating to industry segments: April 30, 2016 2015 Net revenue: Security alarm products $ 8,989,000 $ 10,063,000 Other products 2,251,000 1,840,000 Total net revenue $ 11,240,000 $ 11,903,000 Income from operations: Security alarm products $ 2,689,000 $ 3,005,000 Other products 673,000 549,000 Total income from operations $ 3,362,000 $ 3,554,000 Identifiable assets: Security alarm products $ 4,203,000 $ 3,383,000 Other products 1,142,000 1,450,000 Corporate general 31,323,000 32,023,000 Total assets $ 36,668,000 $ 36,856,000 Depreciation and amortization: Security alarm products $ 16,000 $ 15,000 Other products 123,000 113,000 Corporate general 43,000 21,000 Total depreciation and amortization $ 182,000 $ 149,000 Capital expenditures: Security alarm products $ 24,000 $ 2,000 Other products 33,000 163,000 Corporate general 219,000 21,000 Total capital expenditures $ 276,000 $ 186,000

Concentrations

Concentrations	12 Months Ended
	Apr. 30, 2016
Risks and Uncertainties [Abstract]
Concentrations	10. Concentrations The company maintains the majority of its cash balance in a financial institution in Kimball, Nebraska. Accounts at this institution are insured by the Federal Deposit Insurance Corporation for up to $250,000. For the years ended April 30, 2016 and 2015, the Company had uninsured balances of $4,279,000, and $4,452,000, respectively. Management believes that this financial institution is financially sound and the risk of loss is minimal. The Company also maintains cash balances in money market funds at the above-mentioned financial institution. Such balances are not insured. Management also has cash funds with Wells Fargo Bank with uninsured balances of $1,363,000 and 793,000 for the years ending April 30, 2016 and 2015, respectively. Management believes that this financial institution is financially sound and the risk of loss is minimal. The company has sales to a security alarm distributor representing 41% of total sales for both the years ended April 30, 2016 and 2015. This distributor accounted for 48% and 50% of accounts receivable at April 30, 2016 and 2015, respectively. Security switch sales made up 80% of total sales for the fiscal year ended April 30, 2016 and 85% of total sales for the fiscal year ended April 30, 2015.

Fair Value Measurements

Fair Value Measurements	12 Months Ended
	Apr. 30, 2016
Fair Value Disclosures [Abstract]
Fair Value Measurements	11. Fair Value Measurements The carrying value of our cash and cash equivalents, accounts receivable and accounts payable approximate their fair value due to their short term nature. The fair value of our investments is determined utilizing market based information. Fair value is the price that would be received from selling an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. When determining the fair value measurements for assets and liabilities, which are required to be recorded at fair value, we consider the principal or most advantageous market in which we would transact and the market-based risk measurements or assumptions that market participants would use in pricing the asset or liability, such as inherent risk, transfer restrictions, and credit risk. US GAAP establishes a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (level 1 measurements) and the lowest priority to unobservable inputs (level 3 measurements). The levels of the fair value hierarchy under US GAAP are described below: Level 1 Valuation is based upon quoted prices for identical instruments traded in active markets. Level 2 Valuation is based upon quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active, and model-based valuation techniques for which all significant assumptions are observable in the market. Level 3 Valuation is generated from model-based techniques that use significant assumptions not observable in the market. These unobservable assumptions reflect our own estimates of assumptions that market participants would use in pricing the asset or liability. Valuation techniques include use of option pricing models, discounted cash flow models and similar techniques. Marketable Securities As of April 30, 2016, our investments consisted of money markets, publicly traded equity securities as well as certain state and municipal debt securities. Our marketable securities are valued using third-party broker statements. The value of the majority of securities is derived from quoted market information. The inputs to the valuation are classified as Level 1 given the active market for these securities; however, if an active market does not exist, which is the case for municipal bonds; the inputs are recorded as Level 2. Fair Value Hierarchy The following tables set forth our assets and liabilities measured at fair value on a recurring basis and a non-recurring basis by level within the fair value hierarchy. As required by US GAAP, assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. Assets Measured at Fair Value on a Recurring Basis as of April 30, 2016 Level 1 Level 2 Level 3 Total Assets: Municipal Bonds — $ 6,383,000 — $ 6,383,000 Corporate Bonds $ 126,000 — — $ 126,000 REITs — $ 44,000 — $ 44,000 Equity Securities $ 15,499,000 — — $ 15,499,000 Money Markets and CDs $ 2,478,000 — — $ 2,478,000 Total fair value of assets measured on a recurring basis $ 18,103,000 $ 6,427,000 — $ 24,530,000

Nature of Business and Summar20

Nature of Business and Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Apr. 30, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Nature of Business	Nature of Business
Cash and Cash Equivalents	Cash and Cash Equivalents
Allowance for Doubtful Accounts	Allowance for Doubtful Accounts The company records an allowance for doubtful accounts based on an analysis of specifically identified customer balances. The company has a limited number of customers with individually large amounts due at any given date. Any unanticipated change in any one of these customers’ credit worthiness or other matters affecting the collectability of amounts due from such customers could have a material effect on the results of operations in the period in which such changes or events occur. After all attempts to collect a receivable have failed, the receivable is written off. The company has recorded an allowance for doubtful accounts of $74 for the year ended April 30, 2016 and $160 for the year ended April 30, 2015. For the fiscal year ended April 30, 2016, bad debt expense was a net credit of $2,489 due to bad debt recoveries during the year. For the fiscal year ended April 30, 2015, bad debt expense was a net credit of $3,727.
Inventories	Inventories
Property and Equipment	Property and Equipment Classification Useful Life 2016 2015 Dies, jigs, and molds 3–7 $ 1,685,000 $ 1,652,000 Machinery and equipment 5–10 1,156,000 1,152,000 Furniture and fixtures 5–10 145,000 145,000 Leasehold improvements 5–32 214,000 189,000 Buildings 20–39 659,000 659,000 Automotive 3–5 76,000 74,000 Software 2–5 353,000 140,000 Land N/A 13,000 13,000 Total 4,301,000 4,024,000 Accumulated depreciation (3,545,000 ) (3,363,000 ) Net $ 756,000 $ 661,000 Depreciation expense of $182,000 and $149,000 was charged to operations for the years ended April 30, 2016 and 2015, respectively. Maintenance and repairs are charged to expense as incurred, and expenditures for major improvements are capitalized. When assets are retired or otherwise disposed of, the property accounts are relieved of costs and accumulated depreciation and any resulting gain or loss is credited or charged to operations.
Advertising	Advertising—
Income Taxes	Income Taxes The flow-through method of accounting for tax credits has been adopted by the company. Such credits are reflected as a reduction of the provision for income taxes in the year in which they become available.
Net Income Per Common Share	Net Income Per Common Share
Accounting Estimates	Accounting Estimates
Financial Instruments	Financial Instruments
Revenue Recognition	Revenue Recognition
Comprehensive Income	Comprehensive Income
Segment Reporting and Related Information	Segment Reporting and Related Information
Reclassifications	Reclassifications
Recently Issued Accounting Pronouncements	Recently Issued Accounting Pronouncements — In May 2014, the FASB issued Accounting Standards Update No. 2014-09, Revenue from Contracts with Customers. The objective of this update is to provide a robust framework for addressing revenue recognition issues and, upon its effective date, replaces almost all existing revenue recognition guidance. This update is effective in annual reporting periods beginning after December 15, 2017 and the interim periods within that year. The Company is evaluating the impact of this update on the Company’s financial statements. In January 2015, the FASB issued Accounting Standards Update No. 2015-04, “Requirement that All Deferred Income Tax Assets and Liabilities Be Presented as Non-Current in a Classified Balance Sheet”. The objective of this update is to require deferred tax liabilities and assets be classified entirely as non-current in a classified balance sheet. This update is effective in annual reporting periods beginning after December 15, 2016 and the interim periods within that year. The Company is evaluating the impact of this update on the Company’s financial statements. In February of 2016, the FASB issued ASU 2016-02 Leases

Nature of Business and Summar21

Nature of Business and Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Apr. 30, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Schedule of property and equipment	Depreciation is calculated based on the following estimated useful lives using the straight-line method: Classification Useful Life 2016 2015 Dies, jigs, and molds 3–7 $ 1,685,000 $ 1,652,000 Machinery and equipment 5–10 1,156,000 1,152,000 Furniture and fixtures 5–10 145,000 145,000 Leasehold improvements 5–32 214,000 189,000 Buildings 20–39 659,000 659,000 Automotive 3–5 76,000 74,000 Software 2–5 353,000 140,000 Land N/A 13,000 13,000 Total 4,301,000 4,024,000 Accumulated depreciation (3,545,000 ) (3,363,000 ) Net $ 756,000 $ 661,000

Inventories (Tables)

Inventories (Tables)	12 Months Ended
	Apr. 30, 2016
Inventory Disclosure [Abstract]
Schedule of inventories	Inventories at April 30, 2016 and 2015, consisted of the following: 2016 2015 Raw materials $ 1,948,000 $ 1,557,000 Work in process 641,000 466,000 Finished goods 448,000 318,000 3,037,000 2,341,000 Less: allowance for obsolete inventory (73,000 ) (66,000 ) Totals $ 2,964,000 $ 2,275,000

Investments (Tables)

Investments (Tables)	12 Months Ended
	Apr. 30, 2016
Investments, Debt and Equity Securities [Abstract]
Schedule of investments	As of April 30, 2016, investments consisted of the following: Gross Gross Cost Unrealized Unrealized Reported Basis Gains Losses Value Municipal bonds $ 6,489,000 $ 133,000 $ (239,000 ) $ 6,383,000 Corporate bonds $ 130,000 $ — $ (4,000 ) $ 126,000 REITs $ 42,000 $ 4,000 $ (2,000 ) $ 44,000 Equity securities $ 14,796,000 $ 1,187,000 $ (484,000 ) $ 15,499,000 Money Markets and CDs $ 2,478,000 $ — $ — $ 2,478,000 Total $ 23,935,000 $ 1,324,000 $ (729,000 ) $ 24,530,000
Schedule of unrealized losses not deemed to be other-than-temporarily impaired	The following table shows the investments with unrealized losses that are not deemed to be other-than-temporarily impaired, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, at April 30, 2016. Less than 12 months 12 months or greater Total Description Fair Value Unrealized Fair Value Unrealized Fair Value Unrealized Municipal bonds $ 3,129,000 $ (215,000 ) $ 609,000 $ (24,000 ) $ 3,738,000 $ (239,000 ) Corporate bonds $ — $ — $ 27,000 $ (4,000 ) $ 27,000 $ (4,000 ) REITs $ 27,000 $ (2,000 ) $ — $ — $ 27,000 $ (2,000 ) Equity securities $ 5,018,000 $ (323,000 ) $ 1,171,000 $ (161,000 ) $ 6,189,000 $ (484,000 ) Total $ 8,174,000 $ (540,000 ) $ 1,807,000 $ (189,000 ) $ 9,981,000 $ (729,000 )

Earnings Per Share (Tables)

Earnings Per Share (Tables)	12 Months Ended
	Apr. 30, 2016
Earnings Per Share of Common Stock
Schedule of basic and diluted earnings per share	Basic and diluted earnings per share, assuming convertible preferred stock was converted for each period presented are: April 30, 2016 Income Shares Per-Share (Numerator) (Denominator) Amount Net income $ 3,086,000 Basic EPS $ 3,086,000 5,024,428 $ .6142 Effect of dilutive Convertible Preferred Stock — 20,500 (.0025 ) Diluted EPS $ 3,086,000 5,044,928 $ .6117 April 30, 2015 Income Shares Per-Share (Numerator) (Denominator) Amount Net income $ 3,152,000 Basic EPS $ 3,152,000 5,029,343 $ .6267 Effect of dilutive Convertible Preferred Stock — 20,500 (.0025 ) Diluted EPS $ 3,152,000 5,049,813 $ .6242

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Apr. 30, 2016
Income Tax Disclosure [Abstract]
Schedule of reconciliation of income taxes	Reconciliation of income taxes with Federal and State taxable income: 2016 2015 Income before income taxes $ 4,317,000 $ 4,685,000 State income tax deduction (236,000 ) (279,000 ) Interest and dividend income (638,000 ) (617,000 ) Domestic production activities deduction (312,000 ) (347,000 ) Nondeductible expenses and timing differences 18,000 53,000 Taxable income $ 3,149,000 $ 3,495,000
Schedule of statutory rate to income before income taxes	The following schedule reconciles the provision for income taxes to the amount computed by applying the statutory rate to income before income taxes: Income tax provision at statutory rate $ 1,805,000 $ 1,958,000 Increase (decrease) income taxes resulting from: State income taxes (99,000 ) (117,000 ) Interest and dividend income (267,000 ) (258,000 ) Domestic production activities (130,000 ) (145,000 ) Deferred taxes (21,000 ) 59,000 Other temporary and permanent differences (57,000 ) 36,000 Income tax expense $ 1,231,000 $ 1,533,000 Federal tax rate 34.0 % 34.0 % State tax rate 7.8 % 7.8 % Blended statutory rate 41.8 % 41.8 %
Schedule of deferred tax assets (liabilities)	Deferred tax assets (liabilities) consist of the following components at April 30, 2016 and 2015: Deferred tax current assets (liabilities): Inventory valuation 30,000 27,000 263A adjustment 98,000 — Accrued vacation 34,000 37,000 Accumulated unrealized (gain)/loss on investments (249,000 ) (921,000 ) Net deferred tax assets (liabilities) $ (87,000 ) $ (857,000 ) Deferred long-term tax assets (liabilities): Depreciation (191,000 ) (115,000 ) Net deferred long-term tax assets (liabilities) $ (191,000 ) $ (115,000 )

Business Segments (Tables)

Business Segments (Tables)	12 Months Ended
	Apr. 30, 2016
Segment Reporting [Abstract]
Schedule of financial information relating to industry segments	The following is financial information relating to industry segments: April 30, 2016 2015 Net revenue: Security alarm products $ 8,989,000 $ 10,063,000 Other products 2,251,000 1,840,000 Total net revenue $ 11,240,000 $ 11,903,000 Income from operations: Security alarm products $ 2,689,000 $ 3,005,000 Other products 673,000 549,000 Total income from operations $ 3,362,000 $ 3,554,000 Identifiable assets: Security alarm products $ 4,203,000 $ 3,383,000 Other products 1,142,000 1,450,000 Corporate general 31,323,000 32,023,000 Total assets $ 36,668,000 $ 36,856,000 Depreciation and amortization: Security alarm products $ 16,000 $ 15,000 Other products 123,000 113,000 Corporate general 43,000 21,000 Total depreciation and amortization $ 182,000 $ 149,000 Capital expenditures: Security alarm products $ 24,000 $ 2,000 Other products 33,000 163,000 Corporate general 219,000 21,000 Total capital expenditures $ 276,000 $ 186,000

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	12 Months Ended
	Apr. 30, 2016
Fair Value Disclosures [Abstract]
Schedule of assets and liabilities measured at fair value on a recurring basis	As required by US GAAP, assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. Assets Measured at Fair Value on a Recurring Basis as of April 30, 2016 Level 1 Level 2 Level 3 Total Assets: Municipal Bonds — $ 6,383,000 — $ 6,383,000 Corporate Bonds $ 126,000 — — $ 126,000 REITs $ 44,000 — — $ 44,000 Equity Securities $ 15,499,000 — — $ 15,499,000 Money Markets and CDs $ 2,478,000 — — $ 2,478,000 Total fair value of assets measured on a recurring basis $ 18,147,000 $ 6,383,000 — $ 24,530,000

Nature of Business and Summar28

Nature of Business and Summary of Significant Accounting Policies (Details Narrative)	12 Months Ended
	Apr. 30, 2016USD ($)N	Apr. 30, 2015USD ($)
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Allowance for doubtful accounts	$ 74	$ 160
Bad debt expense	(2,000)	(4,000)
Depreciation expense	182,000	149,000
Advertising expense	$ 289,000	$ 257,000
Number of reportable segments | N	2

Nature of Business and Summar29

Nature of Business and Summary of Significant Accounting Policies (Details) - USD ($)	12 Months Ended
	Apr. 30, 2016	Apr. 30, 2015
Property, Plant and Equipment [Line Items]
Total	$ 4,301,000	$ 4,024,000
Accumulated depreciation	(3,545,000)	(3,363,000)
Net	756,000	661,000
Dies, Jigs And Molds [Member]
Property, Plant and Equipment [Line Items]
Total	$ 1,685,000	1,652,000
Dies, Jigs And Molds [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Useful Life in Years	3 years
Dies, Jigs And Molds [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Useful Life in Years	7 years
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Total	$ 1,156,000	1,152,000
Machinery and Equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Useful Life in Years	5 years
Machinery and Equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Useful Life in Years	10 years
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Total	$ 145,000	145,000
Furniture and Fixtures [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Useful Life in Years	5 years
Furniture and Fixtures [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Useful Life in Years	10 years
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Total	$ 214,000	189,000
Leasehold Improvements [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Useful Life in Years	5 years
Leasehold Improvements [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Useful Life in Years	32 years
Buildings [Member]
Property, Plant and Equipment [Line Items]
Total	$ 659,000	659,000
Buildings [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Useful Life in Years	20 years
Buildings [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Useful Life in Years	39 years
Automotive [Member]
Property, Plant and Equipment [Line Items]
Total	$ 76,000	74,000
Automotive [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Useful Life in Years	3 years
Automotive [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Useful Life in Years	5 years
Software [Member]
Property, Plant and Equipment [Line Items]
Total	$ 353,000	140,000
Software [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Useful Life in Years	2 years
Software [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Useful Life in Years	5 years
Land [Member]
Property, Plant and Equipment [Line Items]
Total	$ 13,000	$ 13,000

Inventories (Details)

Inventories (Details) - USD ($)	Apr. 30, 2016	Apr. 30, 2015
Inventory Disclosure [Abstract]
Raw materials	$ 1,948,000	$ 1,557,000
Work in process	641,000	466,000
Finished goods	448,000	318,000
Gross	3,037,000	2,341,000
Less: allowance for obsolete inventory	(73,000)	(66,000)
Totals	$ 2,964,000	$ 2,275,000

Investments (Details Narrative)

Investments (Details Narrative) - USD ($)	12 Months Ended
	Apr. 30, 2016	Apr. 30, 2015
Impairment losses	$ 69,000	$ 25,000
Minimum [Member]
Available-for-sale debt securities maturity year	2016-06
Maximum [Member]
Available-for-sale debt securities maturity year	2048-11

Investments (Details)

Investments (Details) - USD ($)	12 Months Ended
	Apr. 30, 2016	Apr. 30, 2015
Schedule of Available-for-sale Securities [Line Items]
Cost Basis	$ 23,935,000
Gross Unrealized Gains	1,324,000
Gross Unrealized Losses	(729,000)
Reported Value	24,530,000	$ 25,266,000
Municipal Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Cost Basis	6,489,000
Gross Unrealized Gains	133,000
Gross Unrealized Losses	(239,000)
Reported Value	6,383,000
Corporate Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Cost Basis	130,000
Gross Unrealized Losses	(4,000)
Reported Value	126,000
REITs [Member]
Schedule of Available-for-sale Securities [Line Items]
Cost Basis	42,000
Gross Unrealized Gains	4,000
Gross Unrealized Losses	(2,000)
Reported Value	44,000
Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Cost Basis	14,796,000
Gross Unrealized Gains	1,187,000
Gross Unrealized Losses	(484,000)
Reported Value	15,499,000
Money Markets and CDs [Member]
Schedule of Available-for-sale Securities [Line Items]
Cost Basis	2,478,000
Reported Value	$ 2,478,000

Investments (Details 1)

Investments (Details 1)	12 Months Ended
	Apr. 30, 2016USD ($)
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	$ 8,174,000
Less than 12 Months, Unrealized Losses	(540,000)
12 months or greater, Fair Value	1,807,000
12 months or greater, Unrealized Losses	(189,000)
Total, Fair Value	9,981,000
Total, Unrealized Losses	(729,000)
Municipal Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	3,129,000
Less than 12 Months, Unrealized Losses	(215,000)
12 months or greater, Fair Value	609,000
12 months or greater, Unrealized Losses	(24,000)
Total, Fair Value	3,738,000
Total, Unrealized Losses	(239,000)
Corporate Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
12 months or greater, Fair Value	27,000
12 months or greater, Unrealized Losses	(4,000)
Total, Fair Value	27,000
Total, Unrealized Losses	(4,000)
REITs [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	27,000
Less than 12 Months, Unrealized Losses	(2,000)
Total, Fair Value	27,000
Total, Unrealized Losses	(2,000)
Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	5,018,000
Less than 12 Months, Unrealized Losses	(323,000)
12 months or greater, Fair Value	1,171,000
12 months or greater, Unrealized Losses	(161,000)
Total, Fair Value	6,189,000
Total, Unrealized Losses	$ (484,000)

Retirement Benefit Plan (Detail

Retirement Benefit Plan (Details Narrative) - Retirement Savings Plan [Member] - USD ($)	12 Months Ended
	Apr. 30, 2016	Apr. 30, 2015
Defined Contribution Plan Disclosure [Line Items]
Description of employees eligibility	Employees are eligible to participate in the Plan when they have attained the age of 21 and completed one thousand hours of service in any plan year with the company.
Employer matching contribution vesting period	6 years
Employees vesting percentage	100.00%
Employees matching contributions	$ 10,000	$ 10,000

Stockholders' Equity (Details N

Stockholders' Equity (Details Narrative) - $ / shares	12 Months Ended
	Apr. 30, 2016	Apr. 30, 2015
Dividend Rate	100.00%
Series I Noncumulative Preferred Stock [Member]
Description of preferred stock conversion terms	Each share of the Series #1 preferred stock is convertible at the option of the holder into five shares of Class A common stock and is also redeemable at the option of the board of directors at $20 per share.
Number of shares issued upon conversion	5
Redemption Price Per Share	$ 20
Description of preferred stock dividend payment	The holders of the convertible preferred stock shall be entitled to a dividend at a rate up to $1 per share annually.
Treasury Stock (Common Class A) [Member]
Purchases of common stock (in shares)	3,865	4,450

Earnings Per Share (Details)

Earnings Per Share (Details) - USD ($)	12 Months Ended
	Apr. 30, 2016	Apr. 30, 2015
Income (Numerator)
Net income	$ 3,086,000	$ 3,152,000
Diluted EPS	$ 3,086,000	$ 3,152,000
Shares (Denominator)
Basic EPS	5,024,428	5,029,343
Effect of dilutive Convertible Preferred Stock	20,500	20,500
Diluted EPS	5,044,928	5,049,813
Per-Share Amount
Basic EPS (in dollars per share)	$ 0.61	$ 0.63
Effect of dilutive Convertible Preferred Stock (in dollars per share)	(0.0025)	(0.0025)
Diluted EPS (in dollars per share)	$ 0.61	$ 0.62

Commitments, Contingencies, a37

Commitments, Contingencies, and Related Party Transactions (Details Narrative) - USD ($)	12 Months Ended
	Apr. 30, 2016	Apr. 30, 2015
Mr. Joel Wiens (Principal Shareholder Of FirsTier Bank) [Member]
Bank deposits	$ 4,304,000	$ 4,647,000
Interest income on bank deposits	1,500	1,500
Buildings [Member] | Mr. Bonnie Risk [Member]
Monthly minimum lease payment	1,535
Total lease expense	$ 18,420	$ 18,420

Income Taxes (Details)

Income Taxes (Details) - USD ($)	12 Months Ended
	Apr. 30, 2016	Apr. 30, 2015
Income Tax Disclosure [Abstract]
Income before income taxes	$ 4,317,000	$ 4,685,000
State income tax deduction	(236,000)	(279,000)
Interest and dividend income	(638,000)	(617,000)
Domestic production activities deduction	(312,000)	(347,000)
Nondeductible expenses and timing differences	18,000	53,000
Taxable income	$ 3,149,000	$ 3,495,000

Income Taxes (Details 1)

Income Taxes (Details 1) - USD ($)	12 Months Ended
	Apr. 30, 2016	Apr. 30, 2015
Income Tax Disclosure [Abstract]
Income tax provision at statutory rate	$ 1,805,000	$ 1,958,000
Increase (decrease) income taxes resulting from:
State income taxes	(99,000)	(117,000)
Interest and dividend income	(267,000)	(258,000)
Domestic production activities	(130,000)	(145,000)
Deferred taxes	(21,000)	59,000
Other temporary and permanent differences	(57,000)	36,000
Total Income Tax Expense	$ 1,231,000	$ 1,533,000
Federal tax rate	34.00%	34.00%
State tax rate	7.80%	7.80%
Blended statutory rate	41.80%	41.80%

Income Taxes (Details 2)

Income Taxes (Details 2) - USD ($)	Apr. 30, 2016	Apr. 30, 2015
Deferred tax current assets (liabilities):
Inventory valuation	$ 30,000	$ 27,000
263A adjustment	98,000
Accrued vacation	34,000	37,000
Accumulated unrealized (gain)/loss on investments	(249,000)	(921,000)
Net deferred tax assets (liabilities)	87,000	857,000
Deferred long-term tax assets (liabilities):
Depreciation	(191,000)	(115,000)
Net deferred long-term tax assets (liabilities)	$ 191,000	$ 115,000

Business Segments (Details)

Business Segments (Details) - USD ($)	12 Months Ended
	Apr. 30, 2016	Apr. 30, 2015
Net revenue:
Total net revenue	$ 11,240,000	$ 11,903,000
Income from operations:
Total income from operations	3,362,000	3,554,000
Identifiable assets:
Total assets	36,668,000	36,856,000
Depreciation and amortization:
Total depreciation and amortization	182,000	149,000
Capital expenditures:
Total capital expenditures	276,000	186,000
Security Alarm Products [Member]
Net revenue:
Total net revenue	8,989,000	10,063,000
Income from operations:
Total income from operations	2,689,000	3,005,000
Identifiable assets:
Total assets	4,203,000	3,383,000
Depreciation and amortization:
Total depreciation and amortization	16,000	15,000
Capital expenditures:
Total capital expenditures	24,000	2,000
Other Products [Member]
Net revenue:
Total net revenue	2,251,000	1,840,000
Income from operations:
Total income from operations	673,000	549,000
Identifiable assets:
Total assets	1,142,000	1,450,000
Depreciation and amortization:
Total depreciation and amortization	123,000	113,000
Capital expenditures:
Total capital expenditures	33,000	163,000
Corporate General [Member]
Identifiable assets:
Total assets	31,323,000	32,023,000
Depreciation and amortization:
Total depreciation and amortization	43,000	21,000
Capital expenditures:
Total capital expenditures	$ 219,000	$ 21,000

Concentrations (Details Narrati

Concentrations (Details Narrative) - USD ($)	12 Months Ended
	Apr. 30, 2016	Apr. 30, 2015
Concentration Risk [Line Items]
Cash, FDIC insured amount	$ 250,000
Uninsured amount	$ 4,279,000	$ 4,452,000
Customer Concentration Risk [Member] | Sales [Member]
Concentration Risk [Line Items]
Percentage of concentration risk	41.00%	41.00%
Customer Concentration Risk [Member] | Accounts Receivable [Member]
Concentration Risk [Line Items]
Percentage of concentration risk	48.00%	50.00%
Customer Concentration Risk [Member] | Sales (Security Switch) [Member]
Concentration Risk [Line Items]
Percentage of concentration risk	80.00%	85.00%
Well Fargo Bank [Member]
Concentration Risk [Line Items]
Uninsured amount	$ 1,363,000	$ 793,000

Fair Value Measurements (Detail

Fair Value Measurements (Details) - Fair Value, Measurements, Recurring [Member]	Apr. 30, 2016USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fair value of assets measured on a recurring basis	$ 24,530,000
Municipal Bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fair value of assets measured on a recurring basis	6,383,000
Corporate Bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fair value of assets measured on a recurring basis	126,000
REITs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fair value of assets measured on a recurring basis	44,000
Equity Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fair value of assets measured on a recurring basis	15,499,000
Money Markets and CDs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fair value of assets measured on a recurring basis	2,478,000
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fair value of assets measured on a recurring basis	18,103,000
Level 1 [Member] | Corporate Bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fair value of assets measured on a recurring basis	126,000
Level 1 [Member] | Equity Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fair value of assets measured on a recurring basis	15,499,000
Level 1 [Member] | Money Markets and CDs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fair value of assets measured on a recurring basis	2,478,000
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fair value of assets measured on a recurring basis	6,427,000
Level 2 [Member] | Municipal Bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fair value of assets measured on a recurring basis	6,383,000
Level 2 [Member] | REITs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fair value of assets measured on a recurring basis	$ 44,000