Napco Security (NSSC) 10-K 29 Aug 24 2024 FY Annual report Financial data

Document And Entity Information

Document And Entity Information - USD ($)	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Aug. 28, 2024	Dec. 31, 2023
Document And Entity Information
Document Type	10-K
Amendment Flag	false
Document Annual Report	true
Document Transition Report	false
Document Period End Date	Jun. 30, 2024
Securities Act File Number	0-10004
Entity Registrant Name	NAPCO SECURITY TECHNOLOGIES, INC
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	11-2277818
Entity Address, Address Line One	333 Bayview Avenue
Entity Address, City or Town	Amityville
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	11701
City Area Code	631
Local Phone Number	842-9400
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	FY
Title of 12(b) Security	Common Stock, par value $0.01 per share
Trading Symbol	NSSC
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Interactive Data Current	Yes
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Central Index Key	0000069633
Current Fiscal Year End Date	--06-30
ICFR Auditor Attestation Flag	true
Document Financial Statement Error Correction [Flag]	false
Entity Public Float				$ 1,125,965,428
Entity Common Stock, Shares Outstanding			36,874,471
Auditor Name	DELOITTE & TOUCHE LLP	BAKER TILLY US, LLP
Auditor Firm ID	34	23
Auditor Location	Jericho, New York	New York, New York

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2024	Jun. 30, 2023
CURRENT ASSETS
Cash and cash equivalents	$ 65,341	$ 35,955
Investments - other	26,980	25,660
Marketable securities	5,398	5,136
Accounts receivable, net of allowance for credit losses of $32 and $131 as of June 30, 2024 and June 30, 2023, respectively	31,898	26,069
Inventories	34,804	35,062
Income tax receivable	73	75
Prepaid expenses and other current assets	4,269	3,402
Total Current Assets	168,763	131,359
Inventories - non-current	15,109	13,287
Property, plant and equipment, net	9,077	9,308
Intangible assets, net	3,602	3,939
Deferred income taxes	5,428	2,652
Operating lease - Right-of-use asset	5,487	5,797
Other assets	286	312
TOTAL ASSETS	207,752	166,654
CURRENT LIABILITIES
Accounts payable	7,977	8,061
Accrued expenses	10,345	8,079
Accrued salaries and wages	3,907	3,546
Total Current Liabilities	22,229	19,686
Accrued income taxes	1,122	1,110
Operating lease liability	5,512	5,689
TOTAL LIABILITIES	28,863	26,485
COMMITMENTS AND CONTINGENCIES (Note 14)
STOCKHOLDERS' EQUITY
Common Stock, par value $0.01 per share; 100,000,000 shares authorized as of June 30, 2024 and June 30, 2023; 39,768,186 and 39,663,812 shares issued; and 36,874,471 and 36,770,097 shares outstanding, respectively.	398	397
Additional paid-in capital	23,712	21,553
Retained earnings	174,300	137,740
Less: Treasury Stock, at cost (2,893,715 shares)	(19,521)	(19,521)
TOTAL STOCKHOLDERS' EQUITY	178,889	140,169
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 207,752	$ 166,654

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($)	Jun. 30, 2024	Jun. 30, 2023
CONSOLIDATED BALANCE SHEETS
Allowance for credit losses	$ 32,000	$ 131,000
Common stock, par (per share)	$ 0.01	$ 0.01
Common stock, authorized (in shares)	100,000,000	100,000,000
Common stock, issued (in shares)	39,768,186	39,663,812
Common stock, outstanding (in shares)	36,874,471	36,770,097
Treasury stock, shares	2,893,715	2,893,715

CONSOLIDATED STATEMENTS OF INCO

CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022
Net sales:
Net sales	$ 188,820	$ 169,997	$ 143,593
Cost of sales:
Cost of sales	87,066	96,764	84,437
Gross Profit	101,754	73,233	59,156
Operating expenses:
Research and development	10,763	9,328	8,024
Selling, general, and administrative expenses	37,173	33,580	32,907
Total Operating Expenses	47,936	42,908	40,931
Operating Income	53,818	30,325	18,225
Other income:
Interest and other income (expense), net	2,568	903	(283)
Gain on extinguishment of debt			3,904
Income before Provision for Income Taxes	56,386	31,228	21,846
Provision for Income Taxes	6,568	4,101	2,247
Net Income	$ 49,818	$ 27,127	$ 19,599
Income per share:
Basic (in dollars per share)	$ 1.35	$ 0.74	$ 0.53
Diluted (in dollars per share)	$ 1.34	$ 0.73	$ 0.53
Weighted average number of shares outstanding:
Basic (in shares)	36,812,000	36,741,000	36,725,000
Diluted (in shares)	37,066,000	37,005,000	36,867,000
Equipment
Net sales:
Net sales	$ 113,071	$ 110,062	$ 97,612
Cost of sales:
Cost of sales	79,862	90,197	78,471
Services
Net sales:
Net sales	75,749	59,935	45,981
Cost of sales:
Cost of sales	$ 7,204	$ 6,567	$ 5,966

CONSOLIDATED STATEMENT OF STOCK

CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Common Stock	Additional Paid-in Capital	Treasury Stock	Retained Earnings	Total
Balance at Jun. 30, 2021	$ 396	$ 18,201	$ (19,521)	$ 93,312	$ 92,388
Balance (in shares) at Jun. 30, 2021	39,595,883		(2,893,715)
Stock options exercised		155			155
Stock options exercised (in shares)	32,314
Stock-based compensation expense		1,649			1,649
Net income				19,599	19,599
Balance at Jun. 30, 2022	$ 396	20,005	$ (19,521)	112,911	113,791
Balance (in shares) at Jun. 30, 2022	39,628,197		(2,893,715)
Stock options exercised	$ 1	84			85
Stock options exercised (in shares)	35,615
Stock-based compensation expense		1,464			1,464
Cash dividend				(2,298)	(2,298)
Net income				27,127	27,127
Balance at Jun. 30, 2023	$ 397	21,553	$ (19,521)	137,740	140,169
Balance (in shares) at Jun. 30, 2023	39,663,812		(2,893,715)
Stock options exercised	$ 1	426			427
Stock options exercised (in shares)	104,374
Stock-based compensation expense		1,733			1,733
Cash dividend				(13,258)	(13,258)
Net income				49,818	49,818
Balance at Jun. 30, 2024	$ 398	$ 23,712	$ (19,521)	$ 174,300	$ 178,889
Balance (in shares) at Jun. 30, 2024	39,768,186		(2,893,715)

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS EQUITY (Parenthetical) - $ / shares	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY
Cash dividend declared (in dollars per share)	$ 0.36	$ 0.0625

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 49,818,000	$ 27,127,000	$ 19,599,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	2,163,000	1,930,000	1,771,000
Gain on disposal of fixed asset		(15,000)
Interest expense (income) on other investments	31,000	(470,000)
Unrealized (gain) loss on marketable securities	(56,000)	80,000	426,000
(Recovery of) Provision for credit losses	(99,000)	(112,000)	17,000
Change to inventory reserve	1,691,000	(445,000)	1,187,000
Deferred income taxes	(2,776,000)	(2,818,000)	(214,000)
Stock based compensation expense	1,733,000	1,464,000	1,649,000
Gain on extinguishment of debt			(3,904,000)
Changes in operating assets and liabilities:
Accounts receivable	(5,730,000)	3,261,000	(1,154,000)
Inventories	(3,255,000)	1,883,000	(19,274,000)
Prepaid expenses and other current assets	(867,000)	(564,000)	(430,000)
Income tax receivable	2,000	(75,000)
Other assets	25,000	35,000	(103,000)
Accounts payable, accrued expenses, accrued salaries and wages, accrued income taxes	2,688,000	(6,581,000)	8,762,000
Net Cash Provided by Operating Activities	45,368,000	24,700,000	8,332,000
CASH FLOWS FROM INVESTING ACTIVITIES
Purchases of property, plant, and equipment	(1,594,000)	(2,962,000)	(1,482,000)
Proceeds from disposal of fixed asset		38,000
Purchases of marketable securities	(206,000)	(148,000)	(81,000)
Purchases of other investments	(1,351,000)	(35,281,000)
Redemption of other investments		10,091,000
Net Cash Used in Investing Activities	(3,151,000)	(28,262,000)	(1,563,000)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from stock option exercises	427,000	85,000	155,000
Cash paid for dividend	(13,258,000)	(2,298,000)
Net Cash (Used in) Provided by Financing Activities	(12,831,000)	(2,213,000)	155,000
Net increase (decrease) in Cash and Cash Equivalents	29,386,000	(5,775,000)	6,924,000
CASH AND CASH EQUIVALENTS - Beginning	35,955,000	41,730,000	34,806,000
CASH AND CASH EQUIVALENTS - Ending	65,341,000	35,955,000	41,730,000
SUPPLEMENTAL CASH FLOW INFORMATION
Interest paid	14,000	16,000	16,000
Income taxes paid	$ 9,330,000	$ 8,811,000	$ 2,168,000

Nature of Business and Summary

Nature of Business and Summary of Significant Accounting Policies	12 Months Ended
	Jun. 30, 2024
Nature of Business and Summary of Significant Accounting Policies
Nature of Business and Summary of Significant Accounting Policies	NOTE 1 - Nature of Business and Summary of Significant Accounting Policies Nature of Business : Napco Security Technologies, Inc (“NAPCO”, “the Company”, “we”, “us”) is one of the leading manufacturers and designers of high-tech electronic security devices, cellular communication services for intrusion and fire alarm systems as well as a leading provider of school safety solutions. We offer a diversified array of security products, encompassing access control systems, door-locking products, intrusion and fire alarm systems and video surveillance products. These products are used for commercial, residential, institutional, industrial and governmental applications, and are sold worldwide principally to independent distributors, dealers and installers of security equipment. We have experienced significant growth in recent years, primarily driven by fast growing recurring service revenues generated from wireless communication services for intrusion and fire alarm systems, as well as our school security products that are designed to meet the increasing needs to enhance school security as a result of on-campus shooting and violence in the U.S. Significant Accounting Policies : Principles of Consolidation The consolidated financial statements include the accounts of Napco Security Technologies, Inc. and its wholly-owned subsidiaries. All inter-company balances and transactions have been eliminated in consolidation. Accounting Estimates The preparation of financial statements in conformity with Generally Accepted Accounting Principles (“GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent gains and losses at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. We continuously evaluate our estimates and judgments based on historical experience, as well as other factors that we believe to be reasonable under the circumstances. The results of our evaluation form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Critical estimates include management’s judgments associated with reserves for sales returns and allowances, allowance for credit losses, overhead expenses applied to inventory, inventory reserves, valuation of intangible assets, share based compensation and income taxes. These estimates may change in the future if underlying assumptions or factors change, and actual results may differ from these estimates. Fair Value of Financial Instruments The carrying amounts of financial instruments, including cash equivalents, accounts receivable, accounts payable, and accrued expenses reflected in the consolidated financial statements approximate fair value due to their short-term maturities. The fair value of debt for footnote disclosure purposes, including current maturities, if any, is estimated using recently quoted market prices of the instrument, or if not available, a discounted cash flow analysis based on the estimated current incremental borrowing rates for similar types of instruments. Cash and Cash Equivalents All financial instruments purchased with an original maturity of three months or less at the time of purchase are considered cash equivalents. Such items may include liquid money market funds, certificate of deposit and time deposit accounts. Investments that are classified as cash equivalents are carried at cost, which approximates fair value. The Company’s cash and cash equivalents included approximately $46,518,000 of short-term time deposits, consisting of a certificate of deposit totaling $5,402,000 and $41,116,000 in money market funds as of several certificates of deposit totaling $15,179,000 and $63,000 Cash and cash equivalents consists of the following as of (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2024 June 30, 2023 ​ ​ ​ Cash ​ $ 18,823 ​ $ 20,713 Money Market Fund ​ 41,116 ​ 63 Certificate of Deposits ​ ​ 5,402 ​ ​ 15,179 ​ ​ $ 65,341 ​ $ 35,955 ​ Investments-other consists of the following as of (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2024 June 30, 2023 ​ ​ ​ Certificate of Deposits ​ $ 26,980 ​ $ 25,660 ​ ​ $ 26,980 ​ $ 25,660 ​ Certificate of deposits are recorded at the original cost plus accrued interest. The Company’s Certificate of Deposits consist of the following as of (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2024 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Balance Sheet Classification Interest Rate Maturity Date Cost Carrying Value Cash and Cash Equivalents ​ ​ 4.70% ​ ​ 8/22/2024 ​ $ 5,374 ​ $ 5,402 Investments - other ​ ​ 4.55% - 4.75% ​ ​ 7/25/2024 - 10/24/2024 ​ ​ 26,709 ​ ​ 26,980 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2023 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Balance Sheet Classification Interest Rate Maturity Date Cost Carrying Value Cash and Cash Equivalents ​ ​ 4.59% - 5.00% ​ ​ 7/30/2023 - 8/29/2023 ​ $ 15,112 ​ $ 15,179 Investments - other ​ ​ 4.80% - 5.15% ​ ​ 7/24/2023 - 10/24/2023 ​ ​ 25,359 ​ ​ 25,660 ​ The Company has cash balances in banks in excess of the maximum amount insured by the FDIC and other international agencies as of June 30, 2024 and 2023. The Company has not historically experienced any credit losses with balances in excess of FDIC limits. Marketable Securities The Company’s marketable securities include investments in mutual funds, which invest primarily in various government and corporate obligations, stocks and money market funds Accounts Receivable Accounts receivable is stated net of the reserves for credit losses of $32,000 and $131,000 as of June 30, 2024 and 2023, respectively. In accordance with ASU No. 2016-13, Financial Instruments – Credit Losses (Topic 326), the Company recognizes an allowance for credit losses for trade and other receivables to present the net amount expected to be collected as of the balance sheet date. Such allowance is based on the credit losses expected to arise over the life of the asset which includes consideration of past events and historical loss experience, current events and also future events based on our expectation as of the balance sheet date. Receivables are written off when the Company determined that such receivables are deemed uncollectible. The Company pools its receivables based on similar risk characteristics in estimating its expected credit losses. In situations where a receivable does not share the same risk characteristics with other receivables, the Company measures those receivables individually. The Company also continuously evaluates such pooling decisions and adjusts as needed from period to period as risk characteristics change. The Company utilizes the loss rate method in determining its lifetime expected credit losses on its receivables. This method is used for calculating an estimate of losses based primarily on the Company’s historical loss experience. In determining its loss rates, the Company evaluates information related to its historical losses, adjusted for current conditions and further adjusted for the period of time that can be reasonably forecasted. Qualitative and quantitative adjustments related to current conditions and the reasonable and supportable forecast period consider all the following: past due receivables, the customer creditworthiness, changes in the terms of receivables, effect of other external forces such as competition, and legal and regulatory requirements on the level of estimated credit losses in the existing receivables. Inventories Inventories are valued at the lower of cost or net realizable value, with cost being determined on the first-in, first-out (FIFO) method. The reported net value of inventory includes finished saleable products, work-in-process and raw materials that will be sold or used in future periods. Inventory costs include raw materials, direct labor and overhead. The Company’s overhead expenses are applied based, in part, upon estimates of the proportion of those expenses that are related to procuring and storing raw materials as compared to the manufacture and assembly of finished products. These proportions, the method of their application, and the resulting overhead included in ending inventory, are based in part on subjective estimates and actual results could differ from those estimates. The Company records a reserve for excess and slow-moving inventory, which represents any excess of the cost of the inventory over its estimated realizable value. This reserve is calculated using an estimated excess and slow-moving percentage applied to the inventory based on age, historical trends, product life cycle, requirements to support forecasted sales, and the ability to find alternate applications of its raw materials and to convert finished product into alternate versions of the same product to better match customer demand. In addition, and as necessary, the Company may establish specific reserves for future known or anticipated events. There is inherent professional judgment and subjectivity made by both production and engineering members of management in determining the estimated excess and slow-moving percentage (See Note 6). The Company also regularly reviews the period over which its inventories will be converted to sales. Any inventories expected to convert to sales beyond 12 months from the balance sheet date are classified as non-current. Property, Plant, and Equipment Property, plant, and equipment are carried at cost less accumulated depreciation. Expenditures for maintenance and repairs are charged to expense as incurred; costs of major renewals and improvements are capitalized. At the time property and equipment are retired or otherwise disposed of, the cost and accumulated depreciation are eliminated from the asset and accumulated depreciation accounts and the profit or loss on such disposition is reflected in income. Depreciation is recorded over the estimated service lives of the related assets using primarily the straight-line method. Amortization of leasehold improvements is calculated by using the straight-line method over the estimated useful life of the asset or lease term, whichever is shorter. Long-Lived and Intangible Assets Long-lived assets are amortized over their useful lives and are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of the assets in question may not be recoverable. Impairment would be recorded in circumstances where undiscounted cash flows expected to be generated by an asset are less than the carrying value of that asset. Changes in intangible assets are as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2024 ​ June 30, 2023 ​ Carrying Accumulated Net book Carrying Accumulated Net book ​ ​ value ​ amortization ​ value ​ value ​ amortization ​ value Customer relationships ​ $ 9,800 ​ $ (9,436) ​ $ 364 ​ $ 9,800 ​ $ (9,302) ​ $ 498 Trade name ​ ​ 4,048 ​ (810) ​ 3,238 ​ 4,048 ​ (607) ​ 3,441 ​ ​ $ 13,848 ​ $ (10,246) ​ $ 3,602 ​ $ 13,848 ​ $ (9,909) ​ $ 3,939 ​ Amortization expense for intangible assets subject to amortization was approximately $337,000, $361,000 and $391,000 for the fiscal years ended June 30, 2024, 2023 and 2022, respectively. Amortization expense for each of the next five fiscal years is estimated to be as follows: 2025 - $315,000; 2026 - $297,000; 2027 - $283,000; 2028 - $269,000; and 2029 - $210,000. The weighted average remaining amortization period for intangible assets was 14.8 years and 15.5 years at June 30, 2024 and 2023, respectively. Revenue Recognition Revenue is recognized upon transfer of control of promised products or services to customers in an amount that reflects the consideration the Company expects to receive in exchange for those products or services. Equipment Revenue Equipment revenue, which includes shipping and handling costs, is primarily generated from the sale of finished products to customers. Those sales predominantly contain a single performance obligation and revenue is recognized at a single point in time when ownership, risks and rewards transfer, which is typically the date of shipment of the related equipment when the product is picked up by the carrier or customer. A provision for product returns, credits and rebates is recorded as a reduction of equipment revenue in the same period the revenue is recognized. The Company provides limited standard warranty for defective products, usually for a period of 24 to 36 months, and accepts returns for such defective products as well as for other limited circumstances. The Company also provides rebates to customers for meeting specified purchasing targets and other coupons or credits in limited circumstances. Reserves are established for the estimated returns, rebates and credits and such variable consideration is measured based on the expected value method. The Company analyzes product sales returns and is able to make reasonable and reliable estimates of product returns based on several factors including actual returns and expected return data communicated to the Company by its customers. Service Revenue Service revenue is primarily generated from the sale of monthly cellular communication services to customers. Those sales predominantly contain a single performance obligation and revenue is recognized ratably with the delivery of cellular communication service over the related monthly period, and when ownership, risks and rewards transfer to the customer. The services are billed monthly, and customers have the right to cancel the cellular communication services at any time, however the contract with the customer does not provide for a refund. Cost of Sales Equipment Cost of Sales Equipment cost of sales is primarily comprised of direct materials and supplies consumed in the manufacturing of products, as well as manufacturing labor, depreciation expense and direct and indirect overhead expenses necessary to acquire and convert the purchased materials and supplies into finished products. Service Cost of Sales Service cost of sales includes the cost of operating our network operations center to manage and deliver telecommunication services. Shipping and Handling Sales and Costs The Company records the amount billed to customers for shipping and handling in net sales ($349,000, $450,000 and $428,000 in the fiscal years ended June 30, 2024, 2023 and 2022, respectively) and classifies the costs associated with these sales in cost of sales ($1,573,000, $1,697,000 and $1,425,000 in the fiscal years ended June 30, 2024, 2023 and 2022, respectively). Advertising and Promotional Costs Advertising and promotional costs are included in "Selling, General and Administrative" expenses in the consolidated statements of income and are expensed as incurred. Advertising expense for fiscal years ended June 30, 2024, 2023 and 2022 was $3,262,000, $2,931,000 and $2,889,000, respectively. Research and Development Costs Research and development costs incurred by the Company are charged to expense as incurred and are included in operating expenses in the consolidated statements of income. Company-sponsored research and development expense for the fiscal years ended June 30, 2024, 2023 and 2022 was $10,763,000, $9,328,000 and $8,024,000, respectively. Income Taxes Deferred tax assets and liabilities are recognized for the future tax consequences attributable to temporary differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. Deferred income tax expense represents the change during the period in the deferred tax assets and deferred tax liabilities. Deferred tax assets are reduced by a valuation allowance when, in the opinion of management, it is more likely than not that some portion or all of the deferred tax assets will not be realized. The Company measures and recognizes the tax implications of positions taken or expected to be taken in its tax returns on an ongoing basis. The Company records uncertain tax positions in accordance with ASC 740 on the basis of a two-step process in which (1) we determine whether it is more likely than not that the tax positions will be sustained on the basis of the technical merits of the position and (2) for those tax positions that meet the more-likely-than-not recognition threshold, we recognize the largest amount of tax benefit that is more than 50 percent likely to be realized upon ultimate settlement with the related tax authority. Net Income per Share Basic net income per common share (Basic EPS) is computed by dividing net income by the weighted average number of common shares outstanding. Diluted net income per common share (Diluted EPS) is computed by dividing net income by the weighted average number of common shares and dilutive common share equivalents and convertible securities then outstanding. The following provides a reconciliation of information used in calculating the per share amounts for the fiscal years ended June 30 (in thousands, except per share data): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Net Income per ​ ​ Net Income ​ Weighted Average Shares ​ Share ​ ​ 2024 2023 2022 2024 2023 2022 2024 2023 2022 Basic EPS ​ $ 49,818 ​ $ 27,127 ​ $ 19,599 ​ 36,812 ​ 36,741 ​ 36,725 ​ $ 1.35 ​ $ 0.74 ​ $ 0.53 Effect of Dilutive Securities: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Stock Options ​ ​ — ​ — ​ — 254 264 142 ​ (0.01) ​ (0.01) ​ — Diluted EPS ​ $ 49,818 ​ $ 27,127 ​ $ 19,599 37,066 37,005 36,867 ​ $ 1.34 ​ $ 0.73 ​ $ 0.53 ​ Options to purchase 19,663, 7,534 and 214,109 shares of common stock for the fiscal years ended June 30, 2024, 2023 and 2022, respectively, were not included in the computation of Diluted EPS because their inclusion would be anti-dilutive. These options were still outstanding at the end of the respective periods. Stock-Based Compensation The Company has established five share incentive programs as discussed in Note 10. Stock-based awards exchanged for services are accounted for under the fair value method. Accordingly, stock-based compensation cost is measured at the grant date based on the estimated fair value of the award. The expense for awards is recognized over the requisite service period (generally the vesting period of the award). The Company has elected to treat awards with only service conditions and with graded vesting as one award. Consequently, the total compensation expense is recognized straight-line over the entire vesting period, so long as the compensation cost recognized at any date at least equals the portion of the grant date fair value of the award that is vested at that date. Determining the fair value of share-based awards at the grant date requires assumptions and judgments about expected volatility, among other factors. Stock-based compensation costs of $1,733,000, $1,464,000 and $1,649,000 were recognized for the fiscal years ended June 30, 2024, 2023 and 2022, respectively. Foreign Currency The Company has determined the functional currency of all foreign subsidiaries is the U.S. Dollar. All foreign operations are considered a direct and integral part or extension of the Company’s operations. The day-to-day operations of all foreign subsidiaries are dependent on the economic environment of the U.S. Dollar. Therefore, no realized and unrealized gains and losses associated with foreign currency translation are recorded for the fiscal years ended June 30, 2024, 2023 or 2022. Comprehensive Income For the fiscal years ended June 30, 2024, 2023 and 2022, the Company’s operations did not give rise to material items includable in comprehensive income, which were not already included in net income. Accordingly, the Company’s comprehensive income approximates its net income for all periods presented. Segment Reporting The Company operates and measures its results in one operating segment and therefore has one reportable segment: the development, manufacture and sales of high-tech security devices and related cellular communication services for the devices. The Company’s Chief Operating Decision Maker, (the President, Chief Operating Officer, and Chief Financial Officer) evaluates performance of the Company and makes decisions regarding the allocation of resources based on total Company results. The Company has presented required geographical data in Note 15. Leases The Company determines at contract inception if an arrangement is a lease, or contains a lease, of an identified asset for which the Company has the right to obtain substantially all of the economic benefits from its use and the right to direct its use. Right-of-use (“ROU”) assets represent the Company’s right to use an underlying asset for the lease term, while lease liabilities represent the Company’s obligation to make lease payments arising from the lease. Operating lease ROU assets and liabilities are recognized at lease commencement date based on the present value of lease payments over the lease term. The implicit discount rate in the Company’s leases generally cannot readily be determined, and therefore the Company uses its incremental borrowing rate based on information available at lease commencement date in determining the present value of future payments. If the Company has options to renew or terminate certain leases, those options are included in the determination of lease term when it is reasonably certain that the Company will exercise such options. The Company does not separate lease and non-lease components in determining ROU assets or lease liabilities for real estate leases. Additionally, the Company does not recognize ROU assets or lease liabilities for leases with original terms or renewals of one year or less. See Note 14 – Commitments and Contingencies; Leases for additional accounting policies and disclosures. Legal and Other Contingencies The outcomes of legal proceedings and claims brought against us are subject to significant uncertainty. An estimated loss from a loss contingency such as a legal proceeding or claim is accrued by a charge to income if it is probable that an asset has been impaired, or a liability has been incurred and the amount of the loss can be reasonably estimated. In determining whether a loss should be accrued we evaluate, among other factors, the degree of probability of an unfavorable outcome and the ability to make a reasonable estimate of the amount of loss. Changes in these factors could materially impact our consolidated financial statements. Recently Adopted Accounting Standards Reference Rate Reform (ASC Topic 848) In March 2020, the FASB issued authoritative guidance to provide optional relief for companies preparing for the discontinuation of interest rates such as the London Interbank Offered Rate (“LIBOR”), which is expected to be phased out for new arrangements at the end of calendar 2021, and applies to lease contracts, hedging instruments, held-to-maturity debt securities and debt arrangements that have LIBOR as the benchmark rate. On February 9, 2024, the Company’s bank has shifted to the Benchmark Replacement as defined in the Fourth Amended and Restated Credit Agreement (“Amended Agreement”) with the bank. The new benchmark rate is the Secured Overnight Financing Rate (SOFR) (see Note 9). The adoption of the standard and the transition did not have a material impact on the condensed consolidated financial statements. In October 2021, the FASB issued ASU 2021-08, Business Combinations (Topic 805): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers . The update improves the accounting for acquired revenue contracts with customers in a business combination by addressing diversity in practice and inconsistency related to recognition of an acquired contract liability and payment terms and their effect on subsequent revenue recognized by the acquirer. The guidance requires that an acquiring entity in a business combination recognize and measure contract assets and contract liabilities acquired in accordance with Topic 606 as if it had originated the contract. The amendments in this update were adopted at the beginning of fiscal 2024 and will be applied prospectively to applicable business combinations. The Company determined that adoption of this update has not had a material impact on the Company's consolidated financial statements. Recent Accounting Pronouncements Not Yet Adopted In November 2023, the FASB issued ASU 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures . The update expands public entities’ segment disclosures by requiring disclosure of significant segment expenses that are regularly provided to the chief operating decision maker and included within each reported measure of segment profit or loss. It further requires disclosure of the amount and description of its composition for other segment items, and interim disclosures of both a reportable segment’s profit or loss and assets. The guidance requires disclosure of the title and position of the chief operating decision maker and how reported measures of segment profit or loss are used to assess performance and allocate resources. This pronouncement is effective for annual periods beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024, with early adoption permitted. The Company is currently in the process of evaluating the impact of adoption on its consolidated financial statements. In December 2023, the FASB issued ASU 2023-09, “Income Taxes (Topic 740): Improvements to Income Tax Disclosures,” which requires public entities to disclose consistent categories and greater disaggregation of information in the rate reconciliation and for income taxes paid. It also includes certain other amendments to improve the effectiveness of income tax disclosures. The guidance is effective for financial statements issued for annual periods beginning after December 15, 2024, with early adoption permitted. The Company is currently in the process of evaluating the impact of adoption on its consolidated financial statements. The Company is evaluating other pronouncements recently issued but not yet adopted. The adoption of these pronouncements is not expected to have a material impact on our consolidated financial statements.

Revenue Recognition and Contrac

Revenue Recognition and Contracts with Customers	12 Months Ended
	Jun. 30, 2024
Revenue Recognition and Contracts with Customers
Revenue Recognition and Contracts with Customers	NOTE 2 – Revenue Recognition and Contracts with Customers The Company is engaged in one major line of business: the development, manufacture, and distribution of security products, encompassing access control systems, door security products, intrusion and fire alarm systems, alarm communication services, and video surveillance products for commercial and residential use. The Company also provides wireless communication service for intrusion and fire alarm systems on a monthly basis. These products are used for commercial, residential, institutional, industrial and governmental applications, and are sold worldwide principally to independent distributors, dealers and installers of security equipment. Sales to unaffiliated customers are primarily shipped from the United States. As of June 30, 2024 and 2023, the Company included refund liabilities of approximately $6,295,000 and $5,521,000, respectively, in accrued expenses within the Consolidated Balance Sheets. As of June 30, 2024 and 2023, the Company included return-related assets of approximately $1,586,000 and $1,338,000, respectively, in other current assets. As a percentage of gross sales, sales returns, rebates and allowances were 7%, 7% and 10% for the fiscal years ended June 30, 2024, 2023 and 2022, respectively. The Company disaggregates revenue from contracts with customers into major product lines. The Company determines that disaggregating revenue into these categories achieves the disclosure objective to depict how the nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factors. As noted in the accounting policy footnote, the Company’s business consists of one operating segment. Following is the disaggregation of revenues based on major product lines (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fiscal year ended June 30, ​ ​ 2024 2023 2022 Major Product Lines: ​ ​ ​ ​ Intrusion and access alarm products ​ $ 39,372 ​ $ 47,344 ​ $ 49,606 Door locking devices ​ 73,699 ​ 62,718 ​ 48,006 Services ​ 75,749 ​ 59,935 ​ 45,981 Total Revenues ​ $ 188,820 ​ $ 169,997 ​ $ 143,593 The following table represents the allowance for credit losses accounts as of the respective years ending June 30 (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Balance at beginning of period Charged to costs and expenses Deductions/ (recoveries) Balance at end of period For the Year Ended June 30, 2022: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Allowance for credit losses ​ $ 226 ​ $ 17 ​ $ — ​ $ 243 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ For the Year Ended June 30, 2023: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Allowance for credit losses ​ $ 243 ​ $ 6 ​ $ (118) ​ $ 131 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ For the Year Ended June 30, 2024: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Allowance for credit losses ​ $ 131 ​ $ — ​ $ (99) ​ $ 32 ​

Business and Credit Concentrati

Business and Credit Concentrations	12 Months Ended
	Jun. 30, 2024
Business and Credit Concentrations
Business and Credit Concentrations	NOTE 3 – Business and Credit Concentrations An entity is more vulnerable to concentrations of credit risk if it is exposed to risk of loss greater than it would have had if it mitigated its risk through diversification of customers. The Company had one customer with an accounts receivable balance that comprised 17%, 19% and 22% of the Company’s accounts receivable at June 30, 2024, 2023 and 2022, respectively. Sales to this customer did not exceed 10% of net sales during fiscal years ended June 30, 2024, 2023 and 2022. The Company had another customer with an accounts receivable balance that comprised 12% and 14% of the Company’s accounts receivable at June 30, 2024 and 2023, respectively. The customer accounts receivable balance did not exceed 10% at June 30, 2022. Sales to this customer did not exceed 10% of net sales in any of the fiscal years ended June 30, 2024, 2023 and 2022, respectively. The Company had a third customer with an accounts receivable balance that comprised 16% of the Company’s accounts receivable at June 30, 2022. The customer accounts receivable balance did not exceed 10% at June 30, 2024 or 2023. Sales to this customer did not exceed 10% of net sales in any of the fiscal years ended June 30, 2024, 2023 and 2022.

Fair Value Measurements

Fair Value Measurements	12 Months Ended
	Jun. 30, 2024
Fair Value Measurements
Fair Value Measurements	NOTE 4 – Fair Value Measurements Fair value is the price that would be received for an asset or the amount paid to transfer a liability in an orderly transaction between market participants. The Company is required to classify certain assets and liabilities based on the following fair value hierarchy: ● Level 1: Quoted prices in active markets that are unadjusted and accessible at the measurement date for identical, unrestricted assets or liabilities; ● Level 2: Quoted prices for identical assets and liabilities in markets that are not active, quoted prices for similar assets and liabilities in active markets or financial instruments for which significant inputs are observable, either directly or indirectly; and ● Level 3: Prices or valuations that require inputs that are both significant to the fair value measurement and unobservable. A financial instrument’s level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. The Company has evaluated the estimated fair value of financial instruments using available market information and valuations as provided by third-party sources. The use of different market assumptions or estimation methodologies could have a significant effect on the estimated fair value amounts. The following table presents the Company’s assets that were measured at fair value on a recurring basis at June 30, 2024 and 2023: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Level 1 ​ Level 2 ​ Level 3 ​ Total June 30, 2024 ​ ​ ​ ​ ​ ​ ​ Cash equivalents ​ ​ ​ ​ ​ ​ ​ Certificate of deposits 5,402,000 ​ - ​ - ​ 5,402,000 Money market funds 41,116,000 ​ - ​ - ​ 41,116,000 Total 46,518,000 ​ - ​ - ​ 46,518,000 Short-term investments ​ ​ ​ ​ ​ ​ ​ Certificate of deposits 26,980,000 ​ - ​ - ​ 26,980,000 Total 26,980,000 ​ - ​ - ​ 26,980,000 Marketable securities ​ ​ ​ ​ ​ ​ ​ Mutual funds 5,398,000 ​ - ​ - ​ 5,398,000 Total 5,398,000 ​ - ​ - ​ 5,398,000 ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2023 ​ ​ ​ ​ ​ ​ ​ Cash equivalents ​ ​ ​ ​ ​ ​ ​ Certificate of deposits 15,179,000 ​ - ​ - ​ 15,179,000 Money market funds 63,000 ​ - ​ - ​ 63,000 Total 15,242,000 ​ - ​ - ​ 15,242,000 Short-term investments ​ ​ ​ ​ ​ ​ ​ Certificate of deposits 25,660,000 ​ - ​ - ​ 25,660,000 Total 25,660,000 ​ - ​ - ​ 25,660,000 Marketable securities ​ ​ ​ ​ ​ ​ ​ Mutual funds 5,136,000 ​ - ​ - ​ 5,136,000 Total 5,136,000 ​ - ​ - ​ 5,136,000 ​ The Company’s investments classified as Level 1 are based on quoted prices that are available in active markets, as well as certificates of deposits and time deposits that are classified as Level 1 due to their short-term nature. The Company’s investments classified as Level 2 are valued using observable inputs to quoted market prices, benchmark yields, reported trades, broker/dealer quotes, or alternative pricing sources with reasonable levels of price transparency. For the years ended June 30, 2024 and 2023, there were no transfers between Levels 1 and 2 investments and no transfers in or out of Level 3.

Marketable Securities

Marketable Securities	12 Months Ended
	Jun. 30, 2024
Marketable Securities
Marketable Securities	NOTE 5 – Marketable Securities Marketable securities include investments in fixed income mutual funds, which are reported at their fair values. The disaggregated net gains and losses on the marketable securities recognize in the income statement for the years ended June 30, 2024, 2023 and 2022 are as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year ended June 30, ​ 2024 2023 2022 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Net gains recognized during the period on marketable securities ​ $ 207 ​ $ 147 ​ $ 81 Less: Net gains recognized during the period on marketable securities sold during the period ​ — ​ — ​ — Unrealized gains (losses) recognized during the reporting period on marketable securities still held at the reporting date ​ 55 ​ (79) ​ (426) ​ ​ $ 262 ​ $ 68 ​ $ (345) The following tables summarize the Company’s marketable securities (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2024 ​ June 30, 2023 ​ ​ ​ ​ ​ ​ ​ Unrealized ​ ​ ​ ​ ​ ​ ​ Unrealized ​ Cost Fair Value Gain (Loss) Cost Fair Value Gain (Loss) Mutual Funds $ 5,857 ​ ​ 5,398 ​ $ (459) ​ $ 5,651 ​ $ 5,136 ​ $ (515) ​ Investment income is recognized when earned and consists principally of interest income from fixed income mutual funds. Realized gains and losses on sales of investments are determined on a specific identification basis. Available-for-sale securities in a loss position at June 30, 2024 and 2023 were as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Continuous Loss Position for Less than 12 Months ​ Continuous Loss Position for 12 Months or More ​ Estimated Fair Value ​ Gross Unrealized Losses ​ Estimated Fair Value ​ Gross Unrealized Losses June 30, 2024 ​ ​ ​ ​ ​ ​ ​ Mutual funds - ​ - ​ 4,677,000 ​ 486,000 Total - ​ - ​ 4,677,000 ​ 486,000 ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2023 ​ ​ ​ ​ ​ ​ ​ Mutual funds - ​ - ​ 4,457,000 ​ 537,000 Total - ​ - ​ 4,457,000 ​ 537,000 ​

Inventories

Inventories	12 Months Ended
	Jun. 30, 2024
Inventories
Inventories	NOTE 6 - Inventories Inventories, net of reserves are valued at lower of cost (first-in, first-out method) or net realizable value. Inventories, net of reserves consist of the following (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ June 30, June 30, ​ ​ 2024 ​ 2023 Component parts ​ $ 32,283 ​ $ 29,939 Work-in-process ​ 7,509 ​ 7,726 Finished product ​ 10,121 ​ 10,684 ​ ​ $ 49,913 ​ $ 48,349 ​ ​ ​ ​ ​ ​ ​ Classification of inventories: ​ ​ Current ​ $ 34,804 ​ $ 35,062 Non-current ​ 15,109 ​ 13,287 ​ ​ $ 49,913 ​ $ 48,349 ​ The reserve for excess and slow-moving inventory, which reduces inventory in our consolidated balance sheets were $5,026,000 and $3,367,000 as of June 30, 2024 and 2023, respectively. ​

Property, Plant, and Equipment

Property, Plant, and Equipment	12 Months Ended
	Jun. 30, 2024
Property, Plant, and Equipment
Property, Plant, and Equipment	NOTE 7 - Property, Plant, and Equipment Property, plant and equipment consist of the following (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2024 2023 ​ Useful Life in Years ​ ​ ​ ​ ​ ​ ​ ​ Land ​ $ 904 ​ $ 904 ​ N/A Buildings ​ 8,911 ​ 8,911 30 to 40 Molds and dies ​ 7,539 ​ 7,517 3 to 5 Furniture and fixtures ​ 3,613 ​ 3,387 5 to 10 Machinery and equipment ​ 29,761 ​ 28,574 3 to 10 Building improvements ​ 3,129 ​ 3,078 Shorter of the lease term or life of asset ​ ​ 53,857 ​ 52,371 Less: accumulated depreciation and amortization ​ (44,780) ​ (43,063) ​ ​ $ 9,077 ​ $ 9,308 ​ Depreciation and amortization expense on property, plant, and equipment was approximately $1,826,000, $1,569,000 and $1,380,000 in fiscal 2024, 2023 and 2022, respectively.

Income Taxes

Income Taxes	12 Months Ended
	Jun. 30, 2024
Income Taxes
Income Taxes	NOTE 8 - Income Taxes The provision for income taxes represents Federal, foreign, and state and local income taxes. The effective rate differs from statutory rates due to the effect of state and local income taxes, tax rates in foreign jurisdictions, global intangible low-taxed income (“GILTI”), tax benefit of R&D credits, and certain nondeductible expenses. Our effective tax rate will change based on recurring and non-recurring factors including, but not limited to, the geographical mix of earnings, enacted tax legislation, and state and local income taxes. The amounts of income before income taxes attributable to domestic and foreign operations were as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ For the Year ended June 30, ​ 2024 2023 2022 ​ ​ ​ ​ Domestic ​ $ 6,936 ​ $ 4,926 ​ $ 6,461 Foreign ​ 49,450 ​ 26,302 ​ 15,385 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total ​ $ 56,386 ​ $ 31,228 ​ $ 21,846 ​ The provision for income taxes is comprised of the following (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ For the Year ended June 30, ​ 2024 2023 2022 Current income taxes: ​ ​ ​ Federal ​ $ 8,329 ​ $ 5,899 ​ $ 2,161 State ​ 1,015 ​ 1,020 ​ 300 ​ ​ 9,344 ​ 6,919 ​ 2,461 Deferred income taxes: ​ ​ ​ ​ ​ ​ ​ Federal ​ ​ (2,367) ​ ​ (2,334) ​ (214) State ​ ​ (409) ​ ​ (484) ​ ​ — ​ ​ ​ (2,776) ​ (2,818) ​ (214) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Provision for income taxes ​ $ 6,568 ​ $ 4,101 ​ $ 2,247 ​ A reconciliation of the U.S. Federal statutory income tax rate to our actual effective tax rate on earnings before income taxes is as follows for the years ended June 30, (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2024 ​ ​ 2023 ​ 2022 ​ ​ ​ ​ ​ % of ​ ​ ​ ​ ​ % of ​ ​ ​ ​ ​ % of ​ ​ ​ ​ ​ ​ Pre-tax ​ ​ ​ ​ ​ Pre-tax ​ ​ ​ ​ ​ Pre-tax ​ ​ Amount Income ​ Amount Income ​ Amount Income Tax at Federal statutory rate ​ $ 11,841 ​ 21.0 % ​ $ 6,558 ​ 21.0 % ​ $ 4,588 ​ 21.0 % ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Increases (decreases) in taxes resulting from: ​ ​ ​ ​ ​ ​ ​ Meals and entertainment ​ 66 0.1 % ​ ​ 48 0.2 % ​ ​ 29 0.1 % State income taxes, net of Federal income tax benefit ​ 935 1.7 % ​ ​ 436 1.4 % ​ ​ 238 1.1 % Global intangible low-taxed income ​ ​ 5,259 ​ 9.3 % ​ ​ 2,739 ​ 8.8 % ​ ​ 1,697 ​ 7.8 % R&D Credit ​ (632) (1.1) % ​ ​ (661) (2.1) % ​ ​ (554) (2.5) % Executive Compensation ​ 47 0.1 % ​ ​ — — % ​ ​ — — % Foreign Source income not subject to Tax ​ ​ (10,518) ​ (18.7) % ​ ​ (5,524) ​ (17.7) % ​ ​ (3,231) ​ (14.8) % Non-taxable debt extinguishment ​ — — % ​ ​ — — % ​ ​ (820) (3.8) % Uncertain Tax Positions ​ 78 0.1 % ​ ​ 63 0.2 % ​ ​ 20 0.1 % Other, net ​ (508) (0.9) % ​ ​ 442 1.4 % ​ ​ 280 1.3 % Effective tax rate ​ $ 6,568 11.6 % ​ $ 4,101 13.1 % ​ $ 2,247 10.3 % ​ Deferred tax assets and deferred tax liabilities at June 30, 2024 and 2023 are as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ Deferred Tax Assets (Liabilities) ​ 2024 2023 Accounts receivable ​ $ 8 ​ $ 22 Inventories ​ 541 ​ 397 Accrued liabilities ​ 676 ​ 857 Stock based compensation expense ​ 452 ​ 250 Revenue reserves ​ ​ 439 ​ ​ 333 Unrealized loss on marketable securities ​ ​ 136 ​ ​ 124 Capitalized research and development cost ​ ​ 5,447 ​ ​ 2,923 Other ​ ​ 2 ​ ​ 4 Total Deferred Tax Assets ​ $ 7,701 ​ $ 4,910 Valuation allowance ​ — ​ — Deferred income tax assets, net of valuation allowance ​ $ 7,701 ​ $ 4,910 ​ ​ ​ ​ ​ ​ ​ Intangibles ​ (874) ​ (916) Property, plant and equipment ​ (786) ​ (729) Other deferred tax liabilities ​ (613) ​ (613) Total Deferred Tax Liability ​ $ (2,273) ​ $ (2,258) ​ ​ ​ ​ ​ ​ ​ Net Deferred Tax Asset ​ $ 5,428 ​ $ 2,652 ​ The Company has identified the United States and New York State as its major tax jurisdictions. Fiscal years 2021 and forward are still open for examination, in addition to fiscal year 2018, which is subject to a six year statute of limitations. In addition, the Company has a wholly-owned subsidiary which operates in a Free Zone in the Dominican Republic (“DR”) and is exempt from DR income tax. The provision for income taxes represents Federal, foreign, and state and local income taxes. The effective rate differs from statutory rates due to the effect of tax rates in foreign jurisdictions, state and local income taxes, tax benefit of R&D credits, certain nondeductible expenses, uncertain tax positions and global intangible low-taxed income ("GILTI"). During the year ending June 30, 2024, the Company did not increase or decrease its reserve for uncertain income tax positions. The Company’s practice is to recognize interest and penalties related to income tax matters in income tax expense and accrued income taxes. As of June 30, 2024, the Company had accrued interest totaling $217,000, penalties totaling $5,000, and $700,000 of unrecognized net tax benefits that, if recognized, would favorably affect the Company’s effective income tax rate in any future period. The Company does not expect that its unrecognized tax benefits will significantly change within the next twelve months. The Company claims R&D tax credits on eligible research and development expenditures. The R&D tax credits are recognized as a reduction to income tax expense. A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2024 2023 2022 Balance of gross unrecognized tax benefits as of Beginning of Year ​ $ 700 ​ $ 678 ​ $ 678 Increase to unrecognized tax benefits resulting from a state filing tax position ​ — ​ 22 ​ — Balance of gross unrecognized tax benefits as of End of Year ​ $ 700 ​ $ 700 ​ $ 678 ​

Debt

Debt	12 Months Ended
	Jun. 30, 2024
Debt
Debt	NOTE 9 - Debt On February 9, 2024, the Company and its primary bank, HSBC Bank USA National Association (“HSBC”), agreed to amend and restate the existing Third Amended and Restated Credit Agreement (“Agreement”) dated June 29, 2012, as amended, between the Registrant and HSBC with the Fourth Amended and Restated Credit Agreement (“Amended Agreement”). The Amended Agreement extends the term of the Agreement from June 28, 2024, to February 9, 2029. The Amended Agreement also increases the available revolving credit line from $11,000,000 to $20,000,000 and replaces the LIBOR benchmark rate with the Secured Overnight Financing Rate (SOFR) benchmark rate. As of June 30, 2024 and 2023, the Company has no outstanding debt. The Amended Agreement provides for a SOFR-based interest rate option of SOFR plus 1.2645% to 1.3645% , depending on the Fixed Charge Coverage Ratio, which is to be measured and adjusted quarterly, a prime rate-based interest rate option of the prime rate, as defined in the Amended Agreement, and other terms and conditions as more fully described in the Amended Agreement. The Company’s obligations under the Amended Agreement continue to be secured by substantially all its domestic assets, including but not limited to, deposit accounts, accounts receivable, inventory, equipment and fixtures and intangible assets. In addition, the Company’s wholly owned subsidiaries, except for the Company’s foreign subsidiaries, have issued guarantees and pledges of all their assets to secure the Company’s obligations under the Amended Agreement. All the outstanding common stock of the Company’s domestic subsidiaries and 65% of the common stock of the Company’s foreign subsidiaries have been pledged to secure the Company’s obligations under the Amended Agreement. The Amended Agreement contains various restrictions and covenants including, but not limited to, compliance with certain financial rations, restrictions on payment of dividends and restrictions on borrowings. During the fourth quarter of fiscal 2020, the Company received the proceeds of promissory notes dated between April 17, 2020 and May 7, 2020 (the "PPP Loan Agreement"), entered into between the Company and HSBC Bank USA N.A., as lender (the "Lender”). The Lender made the loans pursuant to the Paycheck Protection Program (the "PPP"), created by Section 1102 of the CARES Act and governed by the CARES Act, Section 7(a)(36) of the Small Business Act, any rules or guidance that has been issued by the Small Business Association (“SBA”) implementing the PPP and acting as guarantor, or any other applicable loan program requirements, as defined in 13 CFR § 120.10, as amended from time to time. Pursuant to the PPP Loan Agreement, the Lender made loans to the Company with an aggregate principal amount of $3,904,000 (the "PPP Loan"). The PPP Loan and related extinguishment was accounted for in accordance with ASC 470 “Debt”. Pursuant to the CARES Act, the loans may be forgiven by the SBA. During the year ended June 30, 2022, the PPP Loans were forgiven, in their entirety, in accordance with guidelines set forth in the PPP loan documents. The Company recognized a gain on the extinguishment of debt during the fiscal year ended June 30, 2022 in the amount of $3,904,000 within the other (expense) income section in the accompanying condensed consolidated statements of income. The SBA reserves the right to audit PPP forgiveness applications for a period of six years from the date of forgiveness. It has indicated that it will audit all of those that are in excess of $2 million.

Stock Options

Stock Options	12 Months Ended
	Jun. 30, 2024
Stock Options
Stock Options	NOTE 10 - Stock Options The Company follows ASC 718 (“Share-Based Payment”), which requires that all share-based payments to employees, including stock options, be recognized as compensation expense in the consolidated financial statements based on their fair values and over the requisite service period. For the fiscal years ended June 30, 2024, 2023 and 2022, the Company recorded non-cash compensation expense of $1,733,000 ($.05 per basic and diluted diluted diluted 2012 Employee Stock Option Plan In December 2012, the stockholders approved the 2012 Employee Stock Option Plan (the “2012 Employee Plan”). The 2012 Employee Plan authorizes the granting of awards, the exercise of which would allow up to an aggregate of 1,900,000 shares of the Company’s common stock to be acquired by the holders of such awards. Under this plan, the Company may grant stock options, which are intended to qualify as incentive stock options (ISOs), to valued employees. Any plan participant who is granted ISOs and possesses more than 10% of the voting rights of the Company’s outstanding common stock must be granted an option with a price of at least 110% of the fair market value on the date of grant. Under the 2012 Employee Plan, stock options may be granted to valued employees with a term of up to 10 years at an exercise price equal to or greater than the fair market value on the date of grant and are exercisable, in whole or in part, at 20% per year beginning on the date of grant. An option granted under this plan shall vest in full upon a “change in control” as defined in the plan. At June 30, 2024, 363,036 stock options were outstanding, 190,960 stock options were exercisable and no further stock options were available for grant under this plan. No options were granted under this plan during the year ended June 30, 2024. The fair value of each option granted was estimated on the date of grant using the Black-Scholes option-pricing model with the following weighted average assumptions: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2024 2023 ​ 2022 Risk-free interest rates ​ n/a ​ 3.03 % 1.64 % Expected lives ​ n/a ​ 7.27 Years ​ 6.18 Years ​ Expected volatility ​ n/a ​ 43 % 43 % Expected dividend yields ​ n/a ​ 0 % 0 % ​ The Company uses a weighted-average expected stock-price volatility assumption that is a combination of both current and historical implied volatilities of the underlying stock. The implied volatilities were obtained from publicly available data sources. For the weighted-average expected option life assumption, the Company considers the exercise behavior of past grants. The average risk-free interest rate is based on the U.S. Treasury Bond rate for the expected term of the options and the average dividend yield is based on historical experience. The following table reflects activity under the 2012 Plan for the fiscal years ended June 30,: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2024 ​ 2023 ​ 2022 ​ ​ ​ ​ ​ Weighted average ​ ​ ​ ​ Weighted average ​ ​ ​ ​ Weighted average ​ Options exercise price Options exercise price Options exercise price Outstanding, beginning of year ​ ​ 521,580 ​ $ 19.37 ​ ​ 523,080 ​ $ 18.59 ​ ​ 214,080 ​ $ 9.59 Granted ​ ​ — ​ ​ — ​ ​ 37,500 ​ $ 26.94 ​ ​ 338,000 ​ $ 23.17 Forfeited/Lapsed ​ ​ (11,000) ​ $ 3.16 ​ ​ — ​ ​ — ​ ​ — ​ ​ - Exercised ​ ​ (147,544) $ 15.43 ​ (39,000) $ 10.44 ​ (29,000) $ 5.45 Outstanding, end of period ​ ​ 363,036 ​ $ 21.47 ​ 521,580 ​ $ 19.37 ​ 523,080 ​ $ 18.59 Exercisable, end of period ​ ​ 190,960 ​ $ 20.87 ​ 247,628 ​ $ 17.16 ​ 176,752 ​ $ 14.68 Weighted average fair value at grant date of options granted ​ ​ n/a ​ ​ ​ $ 13.36 ​ ​ ​ $ 12.16 ​ ​ Total intrinsic value of options exercised ​ $ 3,972,000 ​ ​ ​ ​ $ 822,000 ​ ​ ​ $ 502,000 ​ ​ Total intrinsic value of options outstanding ​ $ 11,067,000 ​ ​ ​ ​ $ 7,968,000 ​ ​ ​ $ 1,916,000 ​ ​ Total intrinsic value of options exercisable ​ $ 5,936,000 ​ ​ ​ ​ $ 4,330,000 ​ ​ ​ $ 1,218,000 ​ ​ ​ 0, 37,500 and 338,000 options were granted during the fiscal years ended June 30, 2024, 2023 and 2022, respectively. 147,544, 39,000 and 29,000 options were exercised during the fiscal years ended June 30, 2024, 2023 and 2022, respectively. 109,544 of the 147,544 stock options exercised during the fiscal year ended June 30, 2024 were settled by the Company withholding 46,570 from the shares issuable on exercise of the options. The withheld shares of Common stock had an aggregate fair market value on the date of exercise equal to the purchase price being paid. 29,600 of the 39,000 stock options exercised during the fiscal year ended June 30, 2023, were settled by the Company withholding 10,150 from the shares issuable on exercise of the options. The withheld shares of Common stock had an aggregate fair market value on the date of exercise equal to the purchase price being paid. 1,000 of the 29,000 stock options exercised during the fiscal year ended June 30, 2022, were settled by the Company withholding 153 from the shares issuable on exercise of the options. The withheld shares of Common stock had an aggregate fair market value on the date of exercise equal to the purchase price being paid. $427,000, $84,000 and $155,000 was received from the remaining option exercises for the fiscal years ended June 30, 2024, 2023 and 2022, respectively, and the actual tax benefit realized for the tax deductions from option exercises was $119,000, $0 and $0 for the years ended June 30, 2024, 2023 and 2022, respectively. The following table summarizes information about stock options outstanding under the 2012 Employee Plan at June 30, 2024: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Options outstanding ​ Options exercisable ​ ​ Weighted average ​ ​ ​ ​ ​ ​ ​ Number ​ remaining ​ Weighted average ​ Number ​ Weighted average Range of exercise prices ​ outstanding ​ contractual life ​ exercise price ​ exercisable ​ exercise price $10.02 ‑ $26.94 ​ 363,036 ​ 7.16 ​ $ 21.47 ​ 190,960 ​ $ 20.87 ​ ​ 363,036 ​ 7.16 ​ $ 21.47 ​ 190,960 ​ $ 20.87 ​ As of June 30, 2024 and 2023, there was $1,094,000 and 1,971,000 of unearned stock-based compensation cost related to share-based compensation arrangements granted under the 2012 Employee Plan, respectively. 101,876, 109,876 and 107,576 options vested during the years June 30, 2024, 2023 and 2022, respectively. 2012 Non-Employee Stock Option Plan In December 2012, the stockholders approved the 2012 Non-Employee Stock Option Plan (the “2012 Non-Employee Plan”). This plan authorizes the granting of awards, the exercise of which would allow up to an aggregate of 100,000 shares of the Company’s common stock to be acquired by the holders of such awards. Under this plan, the Company may grant stock options to non-employee directors and consultants to the Company and its subsidiaries. Under the 2012 Non-Employee Plan, stock options may be granted with a term of up to 10 years at an exercise price equal to or greater than the fair market value on the date of grant and are exercisable in whole or in part at 20% per year beginning on the date of grant. An option granted under this plan shall vest in full upon a “change in control” as defined in the plan. At June 30, 2024, 20,400 stock options were outstanding, 16,560 stock options were exercisable and 0 stock options were available for grant under this plan. No stock options were granted under this plan during the year ended June 30, 2024. The fair value of each option granted was estimated on the date of grant using the Black-Scholes option-pricing model with the following weighted average assumptions: ​ ​ ​ ​ ​ ​ ​ ​ ​ 2024 2023 2022 Risk-free interest rates n/a ​ n/a ​ 1.68 % Expected lives n/a ​ n/a ​ 6.18 Years ​ Expected volatility n/a ​ n/a ​ 43 % Expected dividend yields n/a ​ n/a ​ 0 % ​ The following table reflects activity under the 2012 Non-Employee Plan for the fiscal years ended June 30,: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2024 ​ 2023 ​ 2022 ​ ​ ​ Weighted average ​ ​ Weighted average ​ ​ Weighted average ​ ​ Options ​ exercise price ​ Options ​ exercise price ​ Options ​ exercise price Outstanding, beginning of year ​ ​ 20,400 ​ $ 14.39 ​ ​ 20,400 ​ $ 14.39 ​ ​ 12,000 ​ $ 6.55 Granted ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 9,600 ​ $ 22.93 Forfeited/Lapsed ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Exercised ​ ​ — ​ ​ — ​ — ​ ​ — ​ (1,200) $ 4.35 Outstanding, end of period ​ ​ 20,400 ​ $ 14.39 ​ 20,400 ​ $ 14.39 ​ 20,400 ​ $ 14.39 Exercisable, end of period ​ ​ 16,560 ​ $ 12.41 ​ 13,920 ​ $ 10.99 ​ 11,280 ​ $ 8.92 Weighted average fair value at grant date of options granted ​ ​ n/a ​ ​ ​ ​ ​ n/a ​ ​ $ 12.58 ​ Total intrinsic value of options exercised ​ ​ n/a ​ ​ ​ ​ ​ n/a ​ ​ $ 19,000 ​ Total intrinsic value of options outstanding ​ $ 766,000 ​ ​ ​ ​ $ 413,000 ​ ​ $ 149,000 ​ Total intrinsic value of options exercisable ​ $ 655,000 ​ ​ ​ ​ $ 329,000 ​ ​ $ 136,000 ​ ​ 0, 0 and 9,600 options were granted during the fiscal years ended June 30, 2024, 2023 and 2022, respectively. 0, 0 and 1,200 options were exercised during the fiscal years ended June 30, 2024, 2023 and 2022, respectively. 1,200 stock options exercised during the fiscal year ended June 30, 2022 were settled by the Company withholding 258 from the shares issuable on exercise of the options. The withheld shares of Common stock had an aggregate fair market value on the date of exercise equal to the purchase price being paid. $0 was received from the remaining option exercises for each of the fiscal years ended June 30, 2024, 2023 and 2022, and the actual tax benefit realized for the tax deductions from option exercises was $0, $0 and $4,000 in fiscal 2024, 2023 and 2022 respectively. The following table summarizes information about stock options outstanding under the 2012 Non-Employee Plan at June 30, 2024: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Options outstanding ​ Options exercisable ​ ​ ​ ​ Weighted average ​ Weighted ​ ​ ​ Weighted ​ ​ Number ​ remaining ​ average exercise ​ Number ​ average exercise Range of exercise prices ​ outstanding contractual life ​ price exercisable ​ price $4.35 - $22.93 ​ 20,400 ​ 5.65 ​ $ 14.39 ​ 16,560 ​ $ 12.41 ​ ​ 20,400 ​ 5.65 ​ $ 14.39 ​ 16,560 ​ $ 12.41 ​ As of June 30, 2024 and 2023, there was $24,000 and $46,000 of unearned stock-based compensation cost related to share-based compensation arrangements granted under the 2012 Non-Employee Plan, respectively. 2,640, 2,640 and 6,240 options vested during the years June 30, 2024, 2023 and 2022, respectively. 2018 Non-Employee Stock Option Plan In December 2018, the stockholders approved the 2018 Non-Employee Stock Option Plan (the “2018 Non-Employee Plan”). This plan authorizes the granting of awards, the exercise of which would allow up to an aggregate of 100,000 shares of the Company's common stock to be acquired by the holders of such awards. Under this plan, the Company may grant stock options to non-employee directors and consultants to the Company and its subsidiaries. Under the 2018 Non-Employee Plan, stock options may be granted with a term of up to 10 years at an exercise price equal to or greater than the fair market value on the date of grant and are exercisable in whole or in part at 20% per year beginning on the date of grant. An option granted under this plan shall vest in full upon a “change in control” as defined in the plan. At June 30, 2024, 68,900 stock options were outstanding, 59,500 stock options were exercisable and 0 stock options were available for grant under this plan. No stock options were granted under this plan during the year ended June 30, 2024. The fair value of each option granted was estimated on the date of grant using the Black-Scholes option-pricing model with the following weighted average assumptions: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2024 2023 ​ 2022 Risk-free interest rates ​ n/a ​ n/a ​ 1.68 % Expected lives ​ n/a ​ n/a ​ 6.18 Years ​ Expected volatility ​ n/a ​ n/a ​ 43 % Expected dividend yields ​ n/a ​ n/a ​ 0 % ​ The following table reflects activity under the 2018 Non-Employee plan for the fiscal year ended June 30,: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2024 ​ 2023 ​ 2022 ​ ​ ​ Weighted average ​ ​ Weighted average ​ ​ Weighted average ​ ​ Options exercise price ​ Options exercise price ​ Options exercise price Outstanding, beginning of year ​ ​ 75,000 ​ $ 14.83 ​ ​ 89,000 ​ $ 14.91 ​ ​ 70,100 ​ $ 11.93 Granted ​ ​ — ​ — ​ — ​ — ​ 23,500 $ 22.93 Forfeited/Lapsed ​ ​ — ​ — ​ — ​ — ​ — ​ — Exercised ​ ​ (6,100) $ 18.15 ​ (14,000) $ 15.32 ​ (4,600) $ 10.43 Outstanding, end of period ​ ​ 68,900 ​ $ 14.54 ​ 75,000 ​ $ 14.83 ​ 89,000 ​ $ 14.91 Exercisable, end of period ​ ​ 59,500 ​ $ 13.21 ​ 50,720 ​ $ 12.87 ​ 45,040 ​ $ 12.98 Weighted average fair value at grant date of options granted ​ ​ n/a ​ ​ ​ ​ ​ n/a ​ ​ ​ ​ $ 12.58 ​ ​ ​ Total intrinsic value of options exercised ​ $ 141,000 ​ ​ ​ ​ $ 209,000 ​ ​ ​ ​ $ 58,000 ​ ​ ​ Total intrinsic value of options outstanding ​ $ 2,578,000 ​ ​ ​ ​ $ 1,486,000 ​ ​ ​ ​ $ 561,000 ​ ​ ​ Total intrinsic value of options exercisable ​ $ 2,305,000 ​ ​ ​ ​ $ 1,104,000 ​ ​ ​ ​ $ 354,000 ​ ​ ​ ​ 0, 0 and 23,500 options were granted during the fiscal years ended June 30, 2024, 2023 and 2022, respectively. 6,100, 14,000 and 4,600 options were exercised during the fiscal years ended June 30, 2024, 2023 and 2022, respectively. 6,100 stock options exercised during the fiscal year ended June 30, 2024 were settled by the Company withholding 2,700 from the shares issuable on exercise of the options. The withheld shares of Common stock had an aggregate fair market value on the date of exercise equal to the purchase price being paid. 14,000 stock options exercised during the fiscal year ended June 30, 2023 were settled by the company withholding 7,235 from the shares issuable on exercise of the options. The withheld shares of Common stock had an aggregate fair market value on the date of exercise equal to the purchase price being paid. 4,600 stock options exercised during the fiscal year ended June 30, 2022 were settled by the company withholding 2,075 from the shares issuable on exercise of the options. The withheld shares of Common stock had an aggregate fair market value on the date of exercise equal to the purchase price being paid. $0 was received from the remaining option exercises for each of the fiscal years ended June 30, 2024, 2023 and 2022, and the actual tax benefit realized for the tax deductions from option exercises was $30,000, $44,000 and $12,000 in fiscal 2024, 2023 and 2022, respectively. The following table summarizes information about stock options outstanding under the 2018 Non- Employee Plan at June 30, 2024: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Options outstanding ​ Options exercisable ​ ​ Weighted average Weighted ​ Weighted ​ ​ Number ​ remaining ​ average exercise ​ Number ​ average exercise Range of exercise prices ​ outstanding ​ contractual life ​ price ​ exercisable ​ price $8.10 - $22.93 ​ 68,900 5.71 ​ $ 14.54 59,500 ​ $ 13.21 ​ ​ 68,900 5.71 ​ $ 14.54 59,500 ​ $ 13.21 ​ As of June 30, 2024 and 2023, there was $59,000 and $135,000 of unearned stock-based compensation cost related to share-based compensation arrangements granted under the 2018 Non-Employee Plan, respectively. 14,880, 19,680 and 19,680 options vested during the years June 30, 2024, 2023 and 2022, respectively. 2020 Non-Employee Stock Option Plan In May 2020, the stockholders approved the 2020 Non-Employee Stock Option Plan (the “2020 Non-Employee Plan”). This plan authorizes the granting of awards, the exercise of which would allow up to an aggregate of 100,000 shares of the Company's common stock to be acquired by the holders of such awards. Under this plan, the Company may grant stock options to non-employee directors and consultants to the Company and its subsidiaries. Under the 2020 Non-Employee Plan, stock options may be granted with a term of up to 10 years at an exercise price equal to or greater than the fair market value on the date of grant and are exercisable in whole or in part at 20% per year beginning on the date of grant. An option granted under this plan shall vest in full upon a “change in control” as defined in the plan. At June 30, 2024, 56,900 stock options were outstanding, 30,140 stock options were exercisable and 43,100 stock options were available for grant under this plan. No options were granted under this plan during the year ended June 30, 2024. The fair value of each option granted was estimated on the date of grant using the Black-Scholes option-pricing model with the following weighted average assumptions: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2024 2023 2022 Risk-free interest rates n/a ​ 3.03 - 3.40 % 1.68 % Expected lives n/a ​ 7.23 - 7.27 Years ​ 6.18 Years ​ Expected volatility n/a ​ 43 % 43 % Expected dividend yields n/a ​ 0 % 0 % ​ The following table reflects activity under the 2020 Non-Employee plan for the fiscal year ended June 30,: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2024 ​ 2023 ​ 2022 ​ ​ ​ ​ ​ Weighted average ​ ​ ​ ​ Weighted average ​ ​ ​ ​ Weighted average ​ Options exercise price Options exercise price Options exercise price Outstanding, beginning of year ​ 56,900 $ 23.35 ​ ​ 26,900 $ 18.64 ​ ​ 10,000 $ 11.40 Granted ​ — ​ ​ — ​ ​ 30,000 ​ $ 27.57 ​ ​ 16,900 ​ $ 22.93 Forfeited/Lapsed ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Exercised ​ — ​ — ​ ​ — ​ — ​ ​ — ​ — Outstanding, end of period ​ 56,900 ​ $ 23.35 ​ ​ 56,900 ​ $ 23.35 ​ ​ 26,900 ​ $ 18.64 Exercisable, end of period ​ 30,140 ​ $ 21.72 ​ ​ 18,760 ​ $ 20.73 ​ ​ 7,380 ​ $ 16.68 Weighted average fair value at grant date of options granted ​ ​ n/a ​ ​ $ 13.74 ​ ​ ​ $ 12.58 ​ ​ Total intrinsic value of options exercised ​ n/a ​ ​ n/a ​ ​ ​ n/a ​ ​ Total intrinsic value of options outstanding ​ $ 1,627,000 ​ ​ $ 643,000 ​ ​ ​ $ 92,000 ​ ​ Total intrinsic value of options exercisable ​ $ 911,000 ​ ​ $ 261,000 ​ ​ ​ $ 37,000 ​ ​ ​ 0, 30,000 and 16,900 options were granted during the fiscal years ended June 30, 2024, 2023 and 2022, respectively. No options were exercised during the fiscal years ended June 30, 2024, 2023 and 2022. The following table summarizes information about stock options outstanding under the 2020 Non- Employee Plan at June 30, 2024: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Options outstanding ​ Options exercisable ​ ​ ​ ​ Weighted average ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Number ​ remaining ​ Weighted average ​ Number ​ Weighted average Range of exercise prices outstanding contractual life exercise price exercisable exercise price $11.40 - $30.71 56,900 7.59 ​ $ 23.35 30,140 ​ $ 21.72 ​ 56,900 7.59 ​ $ 23.35 30,140 ​ $ 21.72 ​ As of June 30, 2024 and 2023, there was $215,000 and $344,000 of unearned stock-based compensation cost related to share-based compensation arrangements granted under the 2020 Non-Employee Plan, respectively. 11,380, 11,380 and 5,380 options vested during the years June 30, 2024, 2023 and 2022, respectively. 2022 Employee Stock Option Plan In December 2022, the stockholders approved the 2022 Employee Stock Option Plan (the “2022 Employee Plan”). The plan authorizes the granting of awards, the exercise of which would allow up to an aggregate of 950,000 shares of the Company’s common stock to be acquired by the holders of such awards. Under this plan, the Company may grant stock options, which are intended to qualify as incentive stock options (“ISOs”) or non-incentive stock options, to valued employees. Any plan participant who is granted ISOs and possesses more than 10% of the voting rights of the Company’s outstanding common stock must be granted an option with a price of at least 110% of the fair market value on the date of grant. Under the 2022 Employee Plan, stock options may be granted to valued employees with a term of up to 10 years at an exercise price equal to or greater than the fair market value on the date of grant and are exercisable, in whole or in part, at 20% per year beginning on the date of grant. An option granted under this plan shall vest in full upon a “change in control” as defined in the plan. At June 30, 2024, 130,000 stock options were outstanding, 26,000 stock options were exercisable and 820,000 stock options were available for grant under this plan. 130,000 options were granted under this plan during the year ended June 30, 2024. The fair value of each option granted was estimated on the date of grant using the Black-Scholes option-pricing model with the following weighted average assumptions: ​ ​ ​ ​ ​ ​ ​ ​ 2024 2023 Risk-free interest rates 4.42 - 4.62 % 3.84 % Expected lives 5.63 - 5.87 Years ​ 7.28 Years ​ Expected volatility 56 % 45 % Expected dividend yields .76 - 1.01 % 0.62 % ​ The following table reflects activity under the 2022 Employee plan for the fiscal year ended June 30,: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2024 2023 ​ ​ ​ ​ ​ Weighted average ​ ​ ​ Weighted average ​ Options exercise price Options exercise price Outstanding, beginning of year ​ 5,000 $ 40.01 ​ — ​ — Granted ​ 130,000 ​ $ 41.38 ​ 5,000 ​ $ 40.01 Forfeited/Lapsed ​ ​ (5,000) ​ ​ (40.01) ​ — ​ ​ — Exercised ​ — ​ — ​ — ​ — Outstanding, end of period ​ 130,000 ​ $ 41.38 ​ 5,000 ​ $ 40.01 Exercisable, end of period ​ 26,000 ​ $ 41.38 ​ 1,000 ​ $ 40.01 Weighted average fair value at grant date of options granted ​ $ 21.29 ​ $ 19.77 ​ ​ Total intrinsic value of options exercised ​ n/a ​ n/a ​ ​ Total intrinsic value of options outstanding ​ $ 1,375,000 ​ $ — ​ ​ Total intrinsic value of options exercisable ​ $ 275,000 ​ $ — ​ ​ ​ 130,000 and 5,000 options were granted during the fiscal year ended June 30, 2024 and 2023. No options were exercised during the fiscal year ended June 30, 2023. The following table summarizes information about stock options outstanding under the 2022 Employee Plan at June 30, 2024: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Options outstanding ​ Options exercisable ​ ​ ​ ​ Weighted average ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Number ​ remaining ​ Weighted average ​ Number ​ Weighted average Range of exercise prices outstanding contractual life exercise price exercisable exercise price $21.60 - $49.39 130,000 9.81 ​ $ 41.38 26,000 ​ $ 41.38 ​ 130,000 9.81 ​ $ 41.38 26,000 ​ $ 41.38 ​ As of June 30, 2024 and 2023, there was $2,066,000 and $74,000 of unearned stock-based compensation cost related to share-based compensation arrangements granted under the 2020 Non-Employee Plan, respectively. 26,000 and 1,000 options vested during the year ended June 30, 2024 and 2023.

Stockholders' Equity Transactio

Stockholders' Equity Transactions	12 Months Ended
	Jun. 30, 2024
Stockholders' Equity Transactions
Stockholders' Equity Transactions	NOTE 11 – Stockholders’ Equity Transactions On May 2, 2024 , the Company’s Board of Directors declared a cash dividend of $.10 per share payable on June 24, 2024 to stockholders of record on June 3, 2024 . On February 1, 2024 , the Company’s Board of Directors declared a cash dividend of $.10 per share payable on March 22, 2024 to stockholders of record on March 1, 2024 . On November 2, 2023, the Company’s Board of Directors declared a cash dividend of $.08 per share payable on December 22, 2023 to stockholders of record on December 1, 2023. On August 18, 2023, the Company’s Board of Directors declared a cash dividend of $.08 per share payable on September 22, 2023 to stockholders of record on September 1, 2023. On May 5, 2023, the Company’s Board of Directors declared a cash dividend of $.0625 per share payable on June 12, 2023 to stockholders of record on May 22, 2023. During fiscal 2024, certain employees and directors exercised stock options under the Company's 2012 Employee and 2018 Non-Employee Stock Option Plans totaling 153,644 shares. 115,644 of these exercises were completed as cashless exercises as allowed for under the plans, where the exercise shares are issued by the Company in exchange for shares of the Company's common stock that are owned by the optionees. The number of shares surrendered by the optionees was 49,270 and was based upon the aggregate fair market value on the date of the exercise equal to the purchase price being paid. During fiscal 2023, certain employees and directors exercised stock options under the Company's 2012 Employee and 2018 Non-Employee Stock Option Plans totaling 53,000 shares. 43,600 of these exercises were completed as cashless exercises as allowed for under the plans, where the exercise shares are issued by the Company in exchange for shares of the Company's common stock that are owned by the optionees. The number of shares surrendered by the optionees was 17,385 and was based upon the aggregate fair market value on the date of the exercise equal to the purchase price being paid. During fiscal 2022, certain employees and directors exercised stock options under the Company's 2012 Employee and Non-Employee and 2018 Non-Employee Stock Option Plans totaling 34,800 shares. 6,800 of these exercises were completed as cashless exercises as allowed for under the plans, where the exercise shares are issued by the Company in exchange for shares of the Company's common stock that are owned by the optionees. The number of shares surrendered by the optionees was 2,486 and was based upon the aggregate fair market value on the date of the exercise equal to the purchase price being paid.

Related Party Transaction

Related Party Transaction	12 Months Ended
	Jun. 30, 2024
Related Party Transaction
Related Party Transaction	NOTE 12 – Related Party Transaction In March 2024, the Company's President and Chairman sold 2,000,000 shares of our common stock as a selling stockholder in an underwritten secondary public offering at a public offering price of $40.75 per share. In connection with such offering, the selling stockholder has granted the underwriters an option to purchase additional shares (the “Greenshoe Option”) up to an additional 300,000 shares of their common stock. On April 8, 2024, the underwriters exercised the Greenshoe Options, pursuant to which the selling stockholder sold an additional 50,000 shares. The Company did not sell any shares in the offering and received no proceeds from the offerings, but the Company incurred $407,000 in offering expenses, which are recorded in SG&A in the consolidation statements of income for the year ended June 30, 2024. On February 13, 2023, the Company's Chief Executive Officer and Chairman and the Company’s President, Chief Operating Officer and Chief Financial Officer sold 2,012,500 and 87,500 shares of our common stock, respectively, as selling stockholders in an underwritten secondary public offering at a public offering price of $31.50 per share. In connection with such offering, the selling stockholders granted the underwriters an option to purchase additional shares (the “Greenshoe Option”). On February 15, 2023, the underwriters exercised in full the Greenshoe Option, pursuant to which the selling stockholders sold a total of 300,000 additional shares of common stock at the same public offering price. The Company did not sell any shares in the offering and received no proceeds from the offerings, but the Company incurred $509,000 in offering expenses, which are recorded in selling, general, and administrative expenses in the accompanying condensed consolidated statements of income.

401(k) Plan

401(k) Plan	12 Months Ended
	Jun. 30, 2024
401(k) Plan
401(k) Plan	NOTE 13 - 401(k) Plan The Company maintains a 401(k) plan (“the Plan”) that is available to all U.S. employees and is qualified under Sections 401(a) and 401(k) of the Internal Revenue Code. Company contributions to this plan are discretionary and totaled $258,000, $251,000 and $191,000 for the years ended June 30, 2024, 2023 and 2022, respectively.

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Jun. 30, 2024
Commitments and Contingencies.
Commitments and Contingencies	NOTE 14 - Commitments and Contingencies Leases Our lease obligation consists of a 99-year Operating leases are included in operating lease right-of-use assets, accrued expenses and operating lease liabilities, non-current on our condensed consolidated balance sheets. For the fiscal year ended June 30, 2024 and 2023, cash payments against operating lease liabilities totaled $343,000 and $335,000, respectively. Supplemental balance sheet information related to operating leases was as follows: ​ ​ ​ ​ ​ Weighted-average remaining lease term 68 Years ​ Weighted-average discount rate ​ 6.25 % ​ The following is a schedule, by years, of maturities of lease liabilities as of June 30, 2024 (in thousands): ​ ​ ​ ​ Year Ending June 30, Amount 2025 ​ $ 345 2026 ​ 347 2027 ​ 349 2028 ​ 351 2029 ​ 354 Thereafter ​ ​ 29,713 Total future minimum lease payments ​ $ 31,459 Less: Imputed interest ​ ​ 25,972 Total ​ $ 5,487 ​ Operating lease expense totaled approximately $512,000, $458,000 and $319,000, for the fiscal years ended June 30, 2024, 2023 and 2022, respectively. Litigation On August 29, 2023, a purported class action, brought on behalf of a putative class who acquired publicly traded NAPCO securities between November 7, 2022 and August 18, 2023, was filed in the United States District Court for the Eastern District of New York against the Company, its Chairman and Chief Executive Officer, and its Chief Financial Officer. The action, captioned Zornberg v. NAPCO Security Technologies, Inc. et al., asserts securities fraud claims under Sections 10(b) and 20(a) of the Securities Exchange Act of 1934 in connection with statements made in the Company’s quarterly reports and earnings releases during the period of November 7, 2022 through May 8, 2023. A lead plaintiff was appointed in November 2023 and lead plaintiff filed an Amended Complaint on February 16, 2024. The Amended Complaint added claims under Sections 11, 12, and 15 of the Securities Act of 1933 in connection with the secondary public offering in February 2023. These additional claims are brought against the defendants named in the initial complaint, as well as the directors who allegedly signed the offering materials (prospectuses and registration statement in connection with the offering), and the underwriters for the offering. The Company filed a motion to dismiss the Amended Complaint on April 26, 2024. The Company intends to vigorously defend against the action. With respect to all litigation and related matters, the Company records a liability when the Company believes it is probable that a liability has been incurred and the amount can be reasonably estimated. As of the end of the period covered by this report, due to the early stage of the case the Company is not able to estimate any range of potential loss related to this matter and has not recorded any liability. It is possible that the Company could be required to pay damages (in excess of insurance coverages), incur other costs or establish accruals in amounts that could not be reasonably estimated as of the end of the period covered by this report. Employment Agreements As of June 30, 2024, the Company was obligated under three employment agreements and one severance agreement. The employment agreements are with the Company’s CEO, Senior Vice President of Finance and Chief Accounting Officer (“SVP of Finance”), and the Senior Vice President of Engineering and Chief Technology Officer (“the SVP of Engineering”). The severance agreement is with the Company’s President, COO and CFO. The employment agreement with the CEO provides for an annual salary of $942,000, as adjusted for inflation; incentive compensation as may be approved by the Board of Directors from time to time; and a termination payment in an amount up to 299% of the average of the prior five calendar years’ compensation, subject to certain limitations, as defined in the agreement. The employment agreement renews annually in August unless either party gives the other notice of non-renewal at least six months prior to the end of the applicable term. The employment agreement with the SVP of Finance expires in June 2025 and provides for an annual salary of $350,000. Upon the anniversary date, if terminated by the Company without cause, the SVP of Finance is entitled to severance of six months’ salary and continued company-sponsored health insurance for six months from the date of termination. The employment agreement with the SVP of Engineering expires in August 2024 and provides for an annual salary of $440,000, and, if terminated by the Company without cause, severance of nine months’ salary and continued company-sponsored health insurance for six months from the date of termination. The severance agreement is with the President, Chief Operating Officer and Chief Financial Officer and provides for, if terminated by the Company without cause or within three months of a change in corporate control of the Company, severance of nine months’ salary, based on a salary of $604,000, continued company-sponsored health insurance for six months from the date of termination and certain non-compete and other restrictive provisions.

Geographical Data

Geographical Data	12 Months Ended
	Jun. 30, 2024
Geographical Data
Geographical Data	NOTE 15 - Geographical Data The Company is engaged in one major line of business: the development, manufacture, and distribution of security products, encompassing access control systems, door-locking products, intrusion and fire alarm systems and video surveillance products for commercial and residential use. The Company also provides wireless communication service for intrusion and fire alarm systems. These products are used for commercial, residential, institutional, industrial and governmental applications, and are sold worldwide principally to independent distributors, dealers and installers of security equipment. Sales to unaffiliated customers are primarily shipped from the United States. The Company has customers worldwide with major concentrations in North America. Financial Information Relating to Domestic and Foreign Operations (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fiscal Year ended June 30, ​ ​ 2024 2023 2022 Sales to external customers (1) ​ ​ ​ ​ Domestic ​ $ 187,724 ​ $ 168,619 ​ $ 142,059 Foreign ​ 1,096 ​ 1,378 ​ 1,534 Total Net Sales ​ $ 188,820 ​ $ 169,997 ​ $ 143,593 ​ ​ ​ ​ ​ ​ ​ ​ ​ 2024 2023 Identifiable assets: ​ ​ ​ United States ​ $ 164,365 ​ $ 122,995 Dominican Republic (2) ​ 43,387 ​ 43,659 Total Identifiable Assets ​ $ 207,752 ​ $ 166,654 ​ (1) All of the Company’s sales originate in the United States and are shipped primarily from the Company’s facilities in the United States. There were no sales into any one foreign country in excess of 10% of total Net Sales. (2) Consists primarily of inventories (2024 = $33,584 ; 2023 = $33,477 ), operating lease right of use (2024 = $5,487 ; 2023 = $5,797 ) and fixed assets (2024 = $3,623 ; 2023 = $3,958 ) located at the Company’s principal manufacturing facility in the Dominican Republic.

Subsequent Events

Subsequent Events	12 Months Ended
	Jun. 30, 2024
Subsequent Events
Subsequent Events	NOTE 16 – Subsequent Events The Company has evaluated subsequent events occurring after the date of the consolidated financial statements through the date the consolidated financial statements were issued for events requiring recognition or disclosure. On August 22, 2024, the Company’s Board of Directors declared a cash dividend of $.125 per share payable on October 3, 2024 to stockholders of record on September 12, 2024.

Pay vs Performance Disclosure

Pay vs Performance Disclosure - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022
Pay vs Performance Disclosure
Net Income (Loss)	$ 49,818	$ 27,127	$ 19,599

Insider Trading Policies and Pr

Insider Trading Policies and Procedures	3 Months Ended
	Jun. 30, 2024
Insider Trading Policies and Procedures [Line Items]
Insider Trading Policies and Procedures Adopted	true

Nature of Business and Summar_2

Nature of Business and Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Jun. 30, 2024
Nature of Business and Summary of Significant Accounting Policies
Nature of Business	Nature of Business : Napco Security Technologies, Inc (“NAPCO”, “the Company”, “we”, “us”) is one of the leading manufacturers and designers of high-tech electronic security devices, cellular communication services for intrusion and fire alarm systems as well as a leading provider of school safety solutions. We offer a diversified array of security products, encompassing access control systems, door-locking products, intrusion and fire alarm systems and video surveillance products. These products are used for commercial, residential, institutional, industrial and governmental applications, and are sold worldwide principally to independent distributors, dealers and installers of security equipment. We have experienced significant growth in recent years, primarily driven by fast growing recurring service revenues generated from wireless communication services for intrusion and fire alarm systems, as well as our school security products that are designed to meet the increasing needs to enhance school security as a result of on-campus shooting and violence in the U.S.
Principles of Consolidation	Principles of Consolidation The consolidated financial statements include the accounts of Napco Security Technologies, Inc. and its wholly-owned subsidiaries. All inter-company balances and transactions have been eliminated in consolidation.
Accounting Estimates	Accounting Estimates The preparation of financial statements in conformity with Generally Accepted Accounting Principles (“GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent gains and losses at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. We continuously evaluate our estimates and judgments based on historical experience, as well as other factors that we believe to be reasonable under the circumstances. The results of our evaluation form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Critical estimates include management’s judgments associated with reserves for sales returns and allowances, allowance for credit losses, overhead expenses applied to inventory, inventory reserves, valuation of intangible assets, share based compensation and income taxes. These estimates may change in the future if underlying assumptions or factors change, and actual results may differ from these estimates.
Fair Value of Financial Instruments	Fair Value of Financial Instruments The carrying amounts of financial instruments, including cash equivalents, accounts receivable, accounts payable, and accrued expenses reflected in the consolidated financial statements approximate fair value due to their short-term maturities. The fair value of debt for footnote disclosure purposes, including current maturities, if any, is estimated using recently quoted market prices of the instrument, or if not available, a discounted cash flow analysis based on the estimated current incremental borrowing rates for similar types of instruments.
Cash and Cash Equivalents	Cash and Cash Equivalents All financial instruments purchased with an original maturity of three months or less at the time of purchase are considered cash equivalents. Such items may include liquid money market funds, certificate of deposit and time deposit accounts. Investments that are classified as cash equivalents are carried at cost, which approximates fair value. The Company’s cash and cash equivalents included approximately $46,518,000 of short-term time deposits, consisting of a certificate of deposit totaling $5,402,000 and $41,116,000 in money market funds as of several certificates of deposit totaling $15,179,000 and $63,000 Cash and cash equivalents consists of the following as of (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2024 June 30, 2023 ​ ​ ​ Cash ​ $ 18,823 ​ $ 20,713 Money Market Fund ​ 41,116 ​ 63 Certificate of Deposits ​ ​ 5,402 ​ ​ 15,179 ​ ​ $ 65,341 ​ $ 35,955 ​ Investments-other consists of the following as of (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2024 June 30, 2023 ​ ​ ​ Certificate of Deposits ​ $ 26,980 ​ $ 25,660 ​ ​ $ 26,980 ​ $ 25,660 ​ Certificate of deposits are recorded at the original cost plus accrued interest. The Company’s Certificate of Deposits consist of the following as of (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2024 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Balance Sheet Classification Interest Rate Maturity Date Cost Carrying Value Cash and Cash Equivalents ​ ​ 4.70% ​ ​ 8/22/2024 ​ $ 5,374 ​ $ 5,402 Investments - other ​ ​ 4.55% - 4.75% ​ ​ 7/25/2024 - 10/24/2024 ​ ​ 26,709 ​ ​ 26,980 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2023 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Balance Sheet Classification Interest Rate Maturity Date Cost Carrying Value Cash and Cash Equivalents ​ ​ 4.59% - 5.00% ​ ​ 7/30/2023 - 8/29/2023 ​ $ 15,112 ​ $ 15,179 Investments - other ​ ​ 4.80% - 5.15% ​ ​ 7/24/2023 - 10/24/2023 ​ ​ 25,359 ​ ​ 25,660 ​ The Company has cash balances in banks in excess of the maximum amount insured by the FDIC and other international agencies as of June 30, 2024 and 2023. The Company has not historically experienced any credit losses with balances in excess of FDIC limits.
Marketable Securities	Marketable Securities The Company’s marketable securities include investments in mutual funds, which invest primarily in various government and corporate obligations, stocks and money market funds
Accounts Receivable	Accounts Receivable Accounts receivable is stated net of the reserves for credit losses of $32,000 and $131,000 as of June 30, 2024 and 2023, respectively. In accordance with ASU No. 2016-13, Financial Instruments – Credit Losses (Topic 326), the Company recognizes an allowance for credit losses for trade and other receivables to present the net amount expected to be collected as of the balance sheet date. Such allowance is based on the credit losses expected to arise over the life of the asset which includes consideration of past events and historical loss experience, current events and also future events based on our expectation as of the balance sheet date. Receivables are written off when the Company determined that such receivables are deemed uncollectible. The Company pools its receivables based on similar risk characteristics in estimating its expected credit losses. In situations where a receivable does not share the same risk characteristics with other receivables, the Company measures those receivables individually. The Company also continuously evaluates such pooling decisions and adjusts as needed from period to period as risk characteristics change. The Company utilizes the loss rate method in determining its lifetime expected credit losses on its receivables. This method is used for calculating an estimate of losses based primarily on the Company’s historical loss experience. In determining its loss rates, the Company evaluates information related to its historical losses, adjusted for current conditions and further adjusted for the period of time that can be reasonably forecasted. Qualitative and quantitative adjustments related to current conditions and the reasonable and supportable forecast period consider all the following: past due receivables, the customer creditworthiness, changes in the terms of receivables, effect of other external forces such as competition, and legal and regulatory requirements on the level of estimated credit losses in the existing receivables.
Inventories	Inventories Inventories are valued at the lower of cost or net realizable value, with cost being determined on the first-in, first-out (FIFO) method. The reported net value of inventory includes finished saleable products, work-in-process and raw materials that will be sold or used in future periods. Inventory costs include raw materials, direct labor and overhead. The Company’s overhead expenses are applied based, in part, upon estimates of the proportion of those expenses that are related to procuring and storing raw materials as compared to the manufacture and assembly of finished products. These proportions, the method of their application, and the resulting overhead included in ending inventory, are based in part on subjective estimates and actual results could differ from those estimates. The Company records a reserve for excess and slow-moving inventory, which represents any excess of the cost of the inventory over its estimated realizable value. This reserve is calculated using an estimated excess and slow-moving percentage applied to the inventory based on age, historical trends, product life cycle, requirements to support forecasted sales, and the ability to find alternate applications of its raw materials and to convert finished product into alternate versions of the same product to better match customer demand. In addition, and as necessary, the Company may establish specific reserves for future known or anticipated events. There is inherent professional judgment and subjectivity made by both production and engineering members of management in determining the estimated excess and slow-moving percentage (See Note 6). The Company also regularly reviews the period over which its inventories will be converted to sales. Any inventories expected to convert to sales beyond 12 months from the balance sheet date are classified as non-current.
Property, Plant, and Equipment	Property, Plant, and Equipment Property, plant, and equipment are carried at cost less accumulated depreciation. Expenditures for maintenance and repairs are charged to expense as incurred; costs of major renewals and improvements are capitalized. At the time property and equipment are retired or otherwise disposed of, the cost and accumulated depreciation are eliminated from the asset and accumulated depreciation accounts and the profit or loss on such disposition is reflected in income. Depreciation is recorded over the estimated service lives of the related assets using primarily the straight-line method. Amortization of leasehold improvements is calculated by using the straight-line method over the estimated useful life of the asset or lease term, whichever is shorter.
Long-Lived and Intangible Assets	Long-Lived and Intangible Assets Long-lived assets are amortized over their useful lives and are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of the assets in question may not be recoverable. Impairment would be recorded in circumstances where undiscounted cash flows expected to be generated by an asset are less than the carrying value of that asset. Changes in intangible assets are as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2024 ​ June 30, 2023 ​ Carrying Accumulated Net book Carrying Accumulated Net book ​ ​ value ​ amortization ​ value ​ value ​ amortization ​ value Customer relationships ​ $ 9,800 ​ $ (9,436) ​ $ 364 ​ $ 9,800 ​ $ (9,302) ​ $ 498 Trade name ​ ​ 4,048 ​ (810) ​ 3,238 ​ 4,048 ​ (607) ​ 3,441 ​ ​ $ 13,848 ​ $ (10,246) ​ $ 3,602 ​ $ 13,848 ​ $ (9,909) ​ $ 3,939 ​ Amortization expense for intangible assets subject to amortization was approximately $337,000, $361,000 and $391,000 for the fiscal years ended June 30, 2024, 2023 and 2022, respectively. Amortization expense for each of the next five fiscal years is estimated to be as follows: 2025 - $315,000; 2026 - $297,000; 2027 - $283,000; 2028 - $269,000; and 2029 - $210,000. The weighted average remaining amortization period for intangible assets was 14.8 years and 15.5 years at June 30, 2024 and 2023, respectively.
Revenue Recognition	Revenue Recognition Revenue is recognized upon transfer of control of promised products or services to customers in an amount that reflects the consideration the Company expects to receive in exchange for those products or services. Equipment Revenue Equipment revenue, which includes shipping and handling costs, is primarily generated from the sale of finished products to customers. Those sales predominantly contain a single performance obligation and revenue is recognized at a single point in time when ownership, risks and rewards transfer, which is typically the date of shipment of the related equipment when the product is picked up by the carrier or customer. A provision for product returns, credits and rebates is recorded as a reduction of equipment revenue in the same period the revenue is recognized. The Company provides limited standard warranty for defective products, usually for a period of 24 to 36 months, and accepts returns for such defective products as well as for other limited circumstances. The Company also provides rebates to customers for meeting specified purchasing targets and other coupons or credits in limited circumstances. Reserves are established for the estimated returns, rebates and credits and such variable consideration is measured based on the expected value method. The Company analyzes product sales returns and is able to make reasonable and reliable estimates of product returns based on several factors including actual returns and expected return data communicated to the Company by its customers. Service Revenue Service revenue is primarily generated from the sale of monthly cellular communication services to customers. Those sales predominantly contain a single performance obligation and revenue is recognized ratably with the delivery of cellular communication service over the related monthly period, and when ownership, risks and rewards transfer to the customer. The services are billed monthly, and customers have the right to cancel the cellular communication services at any time, however the contract with the customer does not provide for a refund.
Cost of Sales	Cost of Sales Equipment Cost of Sales Equipment cost of sales is primarily comprised of direct materials and supplies consumed in the manufacturing of products, as well as manufacturing labor, depreciation expense and direct and indirect overhead expenses necessary to acquire and convert the purchased materials and supplies into finished products. Service Cost of Sales Service cost of sales includes the cost of operating our network operations center to manage and deliver telecommunication services.
Shipping and Handling Sales and Costs	Shipping and Handling Sales and Costs The Company records the amount billed to customers for shipping and handling in net sales ($349,000, $450,000 and $428,000 in the fiscal years ended June 30, 2024, 2023 and 2022, respectively) and classifies the costs associated with these sales in cost of sales ($1,573,000, $1,697,000 and $1,425,000 in the fiscal years ended June 30, 2024, 2023 and 2022, respectively).
Advertising and Promotional Costs	Advertising and Promotional Costs Advertising and promotional costs are included in "Selling, General and Administrative" expenses in the consolidated statements of income and are expensed as incurred. Advertising expense for fiscal years ended June 30, 2024, 2023 and 2022 was $3,262,000, $2,931,000 and $2,889,000, respectively.
Research and Development Costs	Research and Development Costs Research and development costs incurred by the Company are charged to expense as incurred and are included in operating expenses in the consolidated statements of income. Company-sponsored research and development expense for the fiscal years ended June 30, 2024, 2023 and 2022 was $10,763,000, $9,328,000 and $8,024,000, respectively.
Income Taxes	Income Taxes Deferred tax assets and liabilities are recognized for the future tax consequences attributable to temporary differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. Deferred income tax expense represents the change during the period in the deferred tax assets and deferred tax liabilities. Deferred tax assets are reduced by a valuation allowance when, in the opinion of management, it is more likely than not that some portion or all of the deferred tax assets will not be realized. The Company measures and recognizes the tax implications of positions taken or expected to be taken in its tax returns on an ongoing basis. The Company records uncertain tax positions in accordance with ASC 740 on the basis of a two-step process in which (1) we determine whether it is more likely than not that the tax positions will be sustained on the basis of the technical merits of the position and (2) for those tax positions that meet the more-likely-than-not recognition threshold, we recognize the largest amount of tax benefit that is more than 50 percent likely to be realized upon ultimate settlement with the related tax authority.
Net Income per Share	Net Income per Share Basic net income per common share (Basic EPS) is computed by dividing net income by the weighted average number of common shares outstanding. Diluted net income per common share (Diluted EPS) is computed by dividing net income by the weighted average number of common shares and dilutive common share equivalents and convertible securities then outstanding. The following provides a reconciliation of information used in calculating the per share amounts for the fiscal years ended June 30 (in thousands, except per share data): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Net Income per ​ ​ Net Income ​ Weighted Average Shares ​ Share ​ ​ 2024 2023 2022 2024 2023 2022 2024 2023 2022 Basic EPS ​ $ 49,818 ​ $ 27,127 ​ $ 19,599 ​ 36,812 ​ 36,741 ​ 36,725 ​ $ 1.35 ​ $ 0.74 ​ $ 0.53 Effect of Dilutive Securities: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Stock Options ​ ​ — ​ — ​ — 254 264 142 ​ (0.01) ​ (0.01) ​ — Diluted EPS ​ $ 49,818 ​ $ 27,127 ​ $ 19,599 37,066 37,005 36,867 ​ $ 1.34 ​ $ 0.73 ​ $ 0.53 ​ Options to purchase 19,663, 7,534 and 214,109 shares of common stock for the fiscal years ended June 30, 2024, 2023 and 2022, respectively, were not included in the computation of Diluted EPS because their inclusion would be anti-dilutive. These options were still outstanding at the end of the respective periods.
Stock-Based Compensation	Stock-Based Compensation The Company has established five share incentive programs as discussed in Note 10. Stock-based awards exchanged for services are accounted for under the fair value method. Accordingly, stock-based compensation cost is measured at the grant date based on the estimated fair value of the award. The expense for awards is recognized over the requisite service period (generally the vesting period of the award). The Company has elected to treat awards with only service conditions and with graded vesting as one award. Consequently, the total compensation expense is recognized straight-line over the entire vesting period, so long as the compensation cost recognized at any date at least equals the portion of the grant date fair value of the award that is vested at that date. Determining the fair value of share-based awards at the grant date requires assumptions and judgments about expected volatility, among other factors. Stock-based compensation costs of $1,733,000, $1,464,000 and $1,649,000 were recognized for the fiscal years ended June 30, 2024, 2023 and 2022, respectively.
Foreign Currency	Foreign Currency The Company has determined the functional currency of all foreign subsidiaries is the U.S. Dollar. All foreign operations are considered a direct and integral part or extension of the Company’s operations. The day-to-day operations of all foreign subsidiaries are dependent on the economic environment of the U.S. Dollar. Therefore, no realized and unrealized gains and losses associated with foreign currency translation are recorded for the fiscal years ended June 30, 2024, 2023 or 2022.
Comprehensive Income	Comprehensive Income For the fiscal years ended June 30, 2024, 2023 and 2022, the Company’s operations did not give rise to material items includable in comprehensive income, which were not already included in net income. Accordingly, the Company’s comprehensive income approximates its net income for all periods presented.
Segment Reporting	Segment Reporting The Company operates and measures its results in one operating segment and therefore has one reportable segment: the development, manufacture and sales of high-tech security devices and related cellular communication services for the devices. The Company’s Chief Operating Decision Maker, (the President, Chief Operating Officer, and Chief Financial Officer) evaluates performance of the Company and makes decisions regarding the allocation of resources based on total Company results. The Company has presented required geographical data in Note 15.
Leases	Leases The Company determines at contract inception if an arrangement is a lease, or contains a lease, of an identified asset for which the Company has the right to obtain substantially all of the economic benefits from its use and the right to direct its use. Right-of-use (“ROU”) assets represent the Company’s right to use an underlying asset for the lease term, while lease liabilities represent the Company’s obligation to make lease payments arising from the lease. Operating lease ROU assets and liabilities are recognized at lease commencement date based on the present value of lease payments over the lease term. The implicit discount rate in the Company’s leases generally cannot readily be determined, and therefore the Company uses its incremental borrowing rate based on information available at lease commencement date in determining the present value of future payments. If the Company has options to renew or terminate certain leases, those options are included in the determination of lease term when it is reasonably certain that the Company will exercise such options. The Company does not separate lease and non-lease components in determining ROU assets or lease liabilities for real estate leases. Additionally, the Company does not recognize ROU assets or lease liabilities for leases with original terms or renewals of one year or less. See Note 14 – Commitments and Contingencies; Leases for additional accounting policies and disclosures.
Legal and Other Contingencies	Legal and Other Contingencies The outcomes of legal proceedings and claims brought against us are subject to significant uncertainty. An estimated loss from a loss contingency such as a legal proceeding or claim is accrued by a charge to income if it is probable that an asset has been impaired, or a liability has been incurred and the amount of the loss can be reasonably estimated. In determining whether a loss should be accrued we evaluate, among other factors, the degree of probability of an unfavorable outcome and the ability to make a reasonable estimate of the amount of loss. Changes in these factors could materially impact our consolidated financial statements.
Recently Issued Accounting Standards	Recently Adopted Accounting Standards Reference Rate Reform (ASC Topic 848) In March 2020, the FASB issued authoritative guidance to provide optional relief for companies preparing for the discontinuation of interest rates such as the London Interbank Offered Rate (“LIBOR”), which is expected to be phased out for new arrangements at the end of calendar 2021, and applies to lease contracts, hedging instruments, held-to-maturity debt securities and debt arrangements that have LIBOR as the benchmark rate. On February 9, 2024, the Company’s bank has shifted to the Benchmark Replacement as defined in the Fourth Amended and Restated Credit Agreement (“Amended Agreement”) with the bank. The new benchmark rate is the Secured Overnight Financing Rate (SOFR) (see Note 9). The adoption of the standard and the transition did not have a material impact on the condensed consolidated financial statements. In October 2021, the FASB issued ASU 2021-08, Business Combinations (Topic 805): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers . The update improves the accounting for acquired revenue contracts with customers in a business combination by addressing diversity in practice and inconsistency related to recognition of an acquired contract liability and payment terms and their effect on subsequent revenue recognized by the acquirer. The guidance requires that an acquiring entity in a business combination recognize and measure contract assets and contract liabilities acquired in accordance with Topic 606 as if it had originated the contract. The amendments in this update were adopted at the beginning of fiscal 2024 and will be applied prospectively to applicable business combinations. The Company determined that adoption of this update has not had a material impact on the Company's consolidated financial statements. Recent Accounting Pronouncements Not Yet Adopted In November 2023, the FASB issued ASU 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures . The update expands public entities’ segment disclosures by requiring disclosure of significant segment expenses that are regularly provided to the chief operating decision maker and included within each reported measure of segment profit or loss. It further requires disclosure of the amount and description of its composition for other segment items, and interim disclosures of both a reportable segment’s profit or loss and assets. The guidance requires disclosure of the title and position of the chief operating decision maker and how reported measures of segment profit or loss are used to assess performance and allocate resources. This pronouncement is effective for annual periods beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024, with early adoption permitted. The Company is currently in the process of evaluating the impact of adoption on its consolidated financial statements. In December 2023, the FASB issued ASU 2023-09, “Income Taxes (Topic 740): Improvements to Income Tax Disclosures,” which requires public entities to disclose consistent categories and greater disaggregation of information in the rate reconciliation and for income taxes paid. It also includes certain other amendments to improve the effectiveness of income tax disclosures. The guidance is effective for financial statements issued for annual periods beginning after December 15, 2024, with early adoption permitted. The Company is currently in the process of evaluating the impact of adoption on its consolidated financial statements. The Company is evaluating other pronouncements recently issued but not yet adopted. The adoption of these pronouncements is not expected to have a material impact on our consolidated financial statements.

Nature of Business and Summar_3

Nature of Business and Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Jun. 30, 2024
Nature of Business and Summary of Significant Accounting Policies
Schedule of cash and cash equivalents	Cash and cash equivalents consists of the following as of (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2024 June 30, 2023 ​ ​ ​ Cash ​ $ 18,823 ​ $ 20,713 Money Market Fund ​ 41,116 ​ 63 Certificate of Deposits ​ ​ 5,402 ​ ​ 15,179 ​ ​ $ 65,341 ​ $ 35,955
Schedule of investments - other	Investments-other consists of the following as of (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2024 June 30, 2023 ​ ​ ​ Certificate of Deposits ​ $ 26,980 ​ $ 25,660 ​ ​ $ 26,980 ​ $ 25,660
Schedule of certificates of deposit	Certificate of deposits are recorded at the original cost plus accrued interest. The Company’s Certificate of Deposits consist of the following as of (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2024 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Balance Sheet Classification Interest Rate Maturity Date Cost Carrying Value Cash and Cash Equivalents ​ ​ 4.70% ​ ​ 8/22/2024 ​ $ 5,374 ​ $ 5,402 Investments - other ​ ​ 4.55% - 4.75% ​ ​ 7/25/2024 - 10/24/2024 ​ ​ 26,709 ​ ​ 26,980 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2023 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Balance Sheet Classification Interest Rate Maturity Date Cost Carrying Value Cash and Cash Equivalents ​ ​ 4.59% - 5.00% ​ ​ 7/30/2023 - 8/29/2023 ​ $ 15,112 ​ $ 15,179 Investments - other ​ ​ 4.80% - 5.15% ​ ​ 7/24/2023 - 10/24/2023 ​ ​ 25,359 ​ ​ 25,660
Schedule of intangible assets	Changes in intangible assets are as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2024 ​ June 30, 2023 ​ Carrying Accumulated Net book Carrying Accumulated Net book ​ ​ value ​ amortization ​ value ​ value ​ amortization ​ value Customer relationships ​ $ 9,800 ​ $ (9,436) ​ $ 364 ​ $ 9,800 ​ $ (9,302) ​ $ 498 Trade name ​ ​ 4,048 ​ (810) ​ 3,238 ​ 4,048 ​ (607) ​ 3,441 ​ ​ $ 13,848 ​ $ (10,246) ​ $ 3,602 ​ $ 13,848 ​ $ (9,909) ​ $ 3,939
Schedule of reconciliation of earnings per share	The following provides a reconciliation of information used in calculating the per share amounts for the fiscal years ended June 30 (in thousands, except per share data): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Net Income per ​ ​ Net Income ​ Weighted Average Shares ​ Share ​ ​ 2024 2023 2022 2024 2023 2022 2024 2023 2022 Basic EPS ​ $ 49,818 ​ $ 27,127 ​ $ 19,599 ​ 36,812 ​ 36,741 ​ 36,725 ​ $ 1.35 ​ $ 0.74 ​ $ 0.53 Effect of Dilutive Securities: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Stock Options ​ ​ — ​ — ​ — 254 264 142 ​ (0.01) ​ (0.01) ​ — Diluted EPS ​ $ 49,818 ​ $ 27,127 ​ $ 19,599 37,066 37,005 36,867 ​ $ 1.34 ​ $ 0.73 ​ $ 0.53

Revenue Recognition and Contr_2

Revenue Recognition and Contracts with Customers (Tables)	12 Months Ended
	Jun. 30, 2024
Revenue Recognition and Contracts with Customers
Schedule of disaggregation of revenues	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fiscal year ended June 30, ​ ​ 2024 2023 2022 Major Product Lines: ​ ​ ​ ​ Intrusion and access alarm products ​ $ 39,372 ​ $ 47,344 ​ $ 49,606 Door locking devices ​ 73,699 ​ 62,718 ​ 48,006 Services ​ 75,749 ​ 59,935 ​ 45,981 Total Revenues ​ $ 188,820 ​ $ 169,997 ​ $ 143,593
Schedule of the allowance for doubtful accounts	The following table represents the allowance for credit losses accounts as of the respective years ending June 30 (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Balance at beginning of period Charged to costs and expenses Deductions/ (recoveries) Balance at end of period For the Year Ended June 30, 2022: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Allowance for credit losses ​ $ 226 ​ $ 17 ​ $ — ​ $ 243 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ For the Year Ended June 30, 2023: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Allowance for credit losses ​ $ 243 ​ $ 6 ​ $ (118) ​ $ 131 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ For the Year Ended June 30, 2024: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Allowance for credit losses ​ $ 131 ​ $ — ​ $ (99) ​ $ 32 ​

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	12 Months Ended
	Jun. 30, 2024
Fair Value Measurements
Schedule of company's assets that were measured at fair value	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Level 1 ​ Level 2 ​ Level 3 ​ Total June 30, 2024 ​ ​ ​ ​ ​ ​ ​ Cash equivalents ​ ​ ​ ​ ​ ​ ​ Certificate of deposits 5,402,000 ​ - ​ - ​ 5,402,000 Money market funds 41,116,000 ​ - ​ - ​ 41,116,000 Total 46,518,000 ​ - ​ - ​ 46,518,000 Short-term investments ​ ​ ​ ​ ​ ​ ​ Certificate of deposits 26,980,000 ​ - ​ - ​ 26,980,000 Total 26,980,000 ​ - ​ - ​ 26,980,000 Marketable securities ​ ​ ​ ​ ​ ​ ​ Mutual funds 5,398,000 ​ - ​ - ​ 5,398,000 Total 5,398,000 ​ - ​ - ​ 5,398,000 ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2023 ​ ​ ​ ​ ​ ​ ​ Cash equivalents ​ ​ ​ ​ ​ ​ ​ Certificate of deposits 15,179,000 ​ - ​ - ​ 15,179,000 Money market funds 63,000 ​ - ​ - ​ 63,000 Total 15,242,000 ​ - ​ - ​ 15,242,000 Short-term investments ​ ​ ​ ​ ​ ​ ​ Certificate of deposits 25,660,000 ​ - ​ - ​ 25,660,000 Total 25,660,000 ​ - ​ - ​ 25,660,000 Marketable securities ​ ​ ​ ​ ​ ​ ​ Mutual funds 5,136,000 ​ - ​ - ​ 5,136,000 Total 5,136,000 ​ - ​ - ​ 5,136,000

Marketable Securities (Tables)

Marketable Securities (Tables)	12 Months Ended
	Jun. 30, 2024
Marketable Securities
Schedule of net gains and losses of marketable securities	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year ended June 30, ​ 2024 2023 2022 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Net gains recognized during the period on marketable securities ​ $ 207 ​ $ 147 ​ $ 81 Less: Net gains recognized during the period on marketable securities sold during the period ​ — ​ — ​ — Unrealized gains (losses) recognized during the reporting period on marketable securities still held at the reporting date ​ 55 ​ (79) ​ (426) ​ ​ $ 262 ​ $ 68 ​ $ (345)
Schedule of fair value of marketable securities	The following tables summarize the Company’s marketable securities (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2024 ​ June 30, 2023 ​ ​ ​ ​ ​ ​ ​ Unrealized ​ ​ ​ ​ ​ ​ ​ Unrealized ​ Cost Fair Value Gain (Loss) Cost Fair Value Gain (Loss) Mutual Funds $ 5,857 ​ ​ 5,398 ​ $ (459) ​ $ 5,651 ​ $ 5,136 ​ $ (515)
Schedule of available-for-sale securities in a loss position	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Continuous Loss Position for Less than 12 Months ​ Continuous Loss Position for 12 Months or More ​ Estimated Fair Value ​ Gross Unrealized Losses ​ Estimated Fair Value ​ Gross Unrealized Losses June 30, 2024 ​ ​ ​ ​ ​ ​ ​ Mutual funds - ​ - ​ 4,677,000 ​ 486,000 Total - ​ - ​ 4,677,000 ​ 486,000 ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2023 ​ ​ ​ ​ ​ ​ ​ Mutual funds - ​ - ​ 4,457,000 ​ 537,000 Total - ​ - ​ 4,457,000 ​ 537,000 ​

Inventories (Tables)

Inventories (Tables)	12 Months Ended
	Jun. 30, 2024
Inventories
Schedule of inventory	Inventories, net of reserves are valued at lower of cost (first-in, first-out method) or net realizable value. Inventories, net of reserves consist of the following (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ June 30, June 30, ​ ​ 2024 ​ 2023 Component parts ​ $ 32,283 ​ $ 29,939 Work-in-process ​ 7,509 ​ 7,726 Finished product ​ 10,121 ​ 10,684 ​ ​ $ 49,913 ​ $ 48,349 ​ ​ ​ ​ ​ ​ ​ Classification of inventories: ​ ​ Current ​ $ 34,804 ​ $ 35,062 Non-current ​ 15,109 ​ 13,287 ​ ​ $ 49,913 ​ $ 48,349

Property, Plant, and Equipment

Property, Plant, and Equipment (Tables)	12 Months Ended
	Jun. 30, 2024
Property, Plant, and Equipment
Schedule of property, plant and equipment	Property, plant and equipment consist of the following (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2024 2023 ​ Useful Life in Years ​ ​ ​ ​ ​ ​ ​ ​ Land ​ $ 904 ​ $ 904 ​ N/A Buildings ​ 8,911 ​ 8,911 30 to 40 Molds and dies ​ 7,539 ​ 7,517 3 to 5 Furniture and fixtures ​ 3,613 ​ 3,387 5 to 10 Machinery and equipment ​ 29,761 ​ 28,574 3 to 10 Building improvements ​ 3,129 ​ 3,078 Shorter of the lease term or life of asset ​ ​ 53,857 ​ 52,371 Less: accumulated depreciation and amortization ​ (44,780) ​ (43,063) ​ ​ $ 9,077 ​ $ 9,308

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Jun. 30, 2024
Income Taxes
Schedule of income before income taxes attributable to domestic and foreign operations	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ For the Year ended June 30, ​ 2024 2023 2022 ​ ​ ​ ​ Domestic ​ $ 6,936 ​ $ 4,926 ​ $ 6,461 Foreign ​ 49,450 ​ 26,302 ​ 15,385 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total ​ $ 56,386 ​ $ 31,228 ​ $ 21,846
Schedule of provision for income taxes	The provision for income taxes is comprised of the following (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ For the Year ended June 30, ​ 2024 2023 2022 Current income taxes: ​ ​ ​ Federal ​ $ 8,329 ​ $ 5,899 ​ $ 2,161 State ​ 1,015 ​ 1,020 ​ 300 ​ ​ 9,344 ​ 6,919 ​ 2,461 Deferred income taxes: ​ ​ ​ ​ ​ ​ ​ Federal ​ ​ (2,367) ​ ​ (2,334) ​ (214) State ​ ​ (409) ​ ​ (484) ​ ​ — ​ ​ ​ (2,776) ​ (2,818) ​ (214) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Provision for income taxes ​ $ 6,568 ​ $ 4,101 ​ $ 2,247
Schedule of effective income tax rate reconciliation	A reconciliation of the U.S. Federal statutory income tax rate to our actual effective tax rate on earnings before income taxes is as follows for the years ended June 30, (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2024 ​ ​ 2023 ​ 2022 ​ ​ ​ ​ ​ % of ​ ​ ​ ​ ​ % of ​ ​ ​ ​ ​ % of ​ ​ ​ ​ ​ ​ Pre-tax ​ ​ ​ ​ ​ Pre-tax ​ ​ ​ ​ ​ Pre-tax ​ ​ Amount Income ​ Amount Income ​ Amount Income Tax at Federal statutory rate ​ $ 11,841 ​ 21.0 % ​ $ 6,558 ​ 21.0 % ​ $ 4,588 ​ 21.0 % ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Increases (decreases) in taxes resulting from: ​ ​ ​ ​ ​ ​ ​ Meals and entertainment ​ 66 0.1 % ​ ​ 48 0.2 % ​ ​ 29 0.1 % State income taxes, net of Federal income tax benefit ​ 935 1.7 % ​ ​ 436 1.4 % ​ ​ 238 1.1 % Global intangible low-taxed income ​ ​ 5,259 ​ 9.3 % ​ ​ 2,739 ​ 8.8 % ​ ​ 1,697 ​ 7.8 % R&D Credit ​ (632) (1.1) % ​ ​ (661) (2.1) % ​ ​ (554) (2.5) % Executive Compensation ​ 47 0.1 % ​ ​ — — % ​ ​ — — % Foreign Source income not subject to Tax ​ ​ (10,518) ​ (18.7) % ​ ​ (5,524) ​ (17.7) % ​ ​ (3,231) ​ (14.8) % Non-taxable debt extinguishment ​ — — % ​ ​ — — % ​ ​ (820) (3.8) % Uncertain Tax Positions ​ 78 0.1 % ​ ​ 63 0.2 % ​ ​ 20 0.1 % Other, net ​ (508) (0.9) % ​ ​ 442 1.4 % ​ ​ 280 1.3 % Effective tax rate ​ $ 6,568 11.6 % ​ $ 4,101 13.1 % ​ $ 2,247 10.3 %
Schedule of deferred tax assets and liabilities	​ Deferred tax assets and deferred tax liabilities at June 30, 2024 and 2023 are as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ Deferred Tax Assets (Liabilities) ​ 2024 2023 Accounts receivable ​ $ 8 ​ $ 22 Inventories ​ 541 ​ 397 Accrued liabilities ​ 676 ​ 857 Stock based compensation expense ​ 452 ​ 250 Revenue reserves ​ ​ 439 ​ ​ 333 Unrealized loss on marketable securities ​ ​ 136 ​ ​ 124 Capitalized research and development cost ​ ​ 5,447 ​ ​ 2,923 Other ​ ​ 2 ​ ​ 4 Total Deferred Tax Assets ​ $ 7,701 ​ $ 4,910 Valuation allowance ​ — ​ — Deferred income tax assets, net of valuation allowance ​ $ 7,701 ​ $ 4,910 ​ ​ ​ ​ ​ ​ ​ Intangibles ​ (874) ​ (916) Property, plant and equipment ​ (786) ​ (729) Other deferred tax liabilities ​ (613) ​ (613) Total Deferred Tax Liability ​ $ (2,273) ​ $ (2,258) ​ ​ ​ ​ ​ ​ ​ Net Deferred Tax Asset ​ $ 5,428 ​ $ 2,652
Schedule of recognized tax benefits roll forward	A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2024 2023 2022 Balance of gross unrecognized tax benefits as of Beginning of Year ​ $ 700 ​ $ 678 ​ $ 678 Increase to unrecognized tax benefits resulting from a state filing tax position ​ — ​ 22 ​ — Balance of gross unrecognized tax benefits as of End of Year ​ $ 700 ​ $ 700 ​ $ 678 ​

Stock Options (Tables)

Stock Options (Tables)	12 Months Ended
	Jun. 30, 2024
2012 Employee Stock Option Plan
Stock Options
Schedule of fair value and valuation assumptions	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2024 2023 ​ 2022 Risk-free interest rates ​ n/a ​ 3.03 % 1.64 % Expected lives ​ n/a ​ 7.27 Years ​ 6.18 Years ​ Expected volatility ​ n/a ​ 43 % 43 % Expected dividend yields ​ n/a ​ 0 % 0 %
Schedule of plan activity	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2024 ​ 2023 ​ 2022 ​ ​ ​ ​ ​ Weighted average ​ ​ ​ ​ Weighted average ​ ​ ​ ​ Weighted average ​ Options exercise price Options exercise price Options exercise price Outstanding, beginning of year ​ ​ 521,580 ​ $ 19.37 ​ ​ 523,080 ​ $ 18.59 ​ ​ 214,080 ​ $ 9.59 Granted ​ ​ — ​ ​ — ​ ​ 37,500 ​ $ 26.94 ​ ​ 338,000 ​ $ 23.17 Forfeited/Lapsed ​ ​ (11,000) ​ $ 3.16 ​ ​ — ​ ​ — ​ ​ — ​ ​ - Exercised ​ ​ (147,544) $ 15.43 ​ (39,000) $ 10.44 ​ (29,000) $ 5.45 Outstanding, end of period ​ ​ 363,036 ​ $ 21.47 ​ 521,580 ​ $ 19.37 ​ 523,080 ​ $ 18.59 Exercisable, end of period ​ ​ 190,960 ​ $ 20.87 ​ 247,628 ​ $ 17.16 ​ 176,752 ​ $ 14.68 Weighted average fair value at grant date of options granted ​ ​ n/a ​ ​ ​ $ 13.36 ​ ​ ​ $ 12.16 ​ ​ Total intrinsic value of options exercised ​ $ 3,972,000 ​ ​ ​ ​ $ 822,000 ​ ​ ​ $ 502,000 ​ ​ Total intrinsic value of options outstanding ​ $ 11,067,000 ​ ​ ​ ​ $ 7,968,000 ​ ​ ​ $ 1,916,000 ​ ​ Total intrinsic value of options exercisable ​ $ 5,936,000 ​ ​ ​ ​ $ 4,330,000 ​ ​ ​ $ 1,218,000 ​ ​
Schedule of options outstanding	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Options outstanding ​ Options exercisable ​ ​ Weighted average ​ ​ ​ ​ ​ ​ ​ Number ​ remaining ​ Weighted average ​ Number ​ Weighted average Range of exercise prices ​ outstanding ​ contractual life ​ exercise price ​ exercisable ​ exercise price $10.02 ‑ $26.94 ​ 363,036 ​ 7.16 ​ $ 21.47 ​ 190,960 ​ $ 20.87 ​ ​ 363,036 ​ 7.16 ​ $ 21.47 ​ 190,960 ​ $ 20.87
2012 Non-Employee Stock Option Plan
Stock Options
Schedule of fair value and valuation assumptions	​ ​ ​ ​ ​ ​ ​ ​ ​ 2024 2023 2022 Risk-free interest rates n/a ​ n/a ​ 1.68 % Expected lives n/a ​ n/a ​ 6.18 Years ​ Expected volatility n/a ​ n/a ​ 43 % Expected dividend yields n/a ​ n/a ​ 0 %
Schedule of plan activity	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2024 ​ 2023 ​ 2022 ​ ​ ​ Weighted average ​ ​ Weighted average ​ ​ Weighted average ​ ​ Options ​ exercise price ​ Options ​ exercise price ​ Options ​ exercise price Outstanding, beginning of year ​ ​ 20,400 ​ $ 14.39 ​ ​ 20,400 ​ $ 14.39 ​ ​ 12,000 ​ $ 6.55 Granted ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 9,600 ​ $ 22.93 Forfeited/Lapsed ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Exercised ​ ​ — ​ ​ — ​ — ​ ​ — ​ (1,200) $ 4.35 Outstanding, end of period ​ ​ 20,400 ​ $ 14.39 ​ 20,400 ​ $ 14.39 ​ 20,400 ​ $ 14.39 Exercisable, end of period ​ ​ 16,560 ​ $ 12.41 ​ 13,920 ​ $ 10.99 ​ 11,280 ​ $ 8.92 Weighted average fair value at grant date of options granted ​ ​ n/a ​ ​ ​ ​ ​ n/a ​ ​ $ 12.58 ​ Total intrinsic value of options exercised ​ ​ n/a ​ ​ ​ ​ ​ n/a ​ ​ $ 19,000 ​ Total intrinsic value of options outstanding ​ $ 766,000 ​ ​ ​ ​ $ 413,000 ​ ​ $ 149,000 ​ Total intrinsic value of options exercisable ​ $ 655,000 ​ ​ ​ ​ $ 329,000 ​ ​ $ 136,000 ​
Schedule of options outstanding	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Options outstanding ​ Options exercisable ​ ​ ​ ​ Weighted average ​ Weighted ​ ​ ​ Weighted ​ ​ Number ​ remaining ​ average exercise ​ Number ​ average exercise Range of exercise prices ​ outstanding contractual life ​ price exercisable ​ price $4.35 - $22.93 ​ 20,400 ​ 5.65 ​ $ 14.39 ​ 16,560 ​ $ 12.41 ​ ​ 20,400 ​ 5.65 ​ $ 14.39 ​ 16,560 ​ $ 12.41
2018 Non-Employee Stock Option Plan
Stock Options
Schedule of fair value and valuation assumptions	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2024 2023 ​ 2022 Risk-free interest rates ​ n/a ​ n/a ​ 1.68 % Expected lives ​ n/a ​ n/a ​ 6.18 Years ​ Expected volatility ​ n/a ​ n/a ​ 43 % Expected dividend yields ​ n/a ​ n/a ​ 0 %
Schedule of plan activity	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2024 ​ 2023 ​ 2022 ​ ​ ​ Weighted average ​ ​ Weighted average ​ ​ Weighted average ​ ​ Options exercise price ​ Options exercise price ​ Options exercise price Outstanding, beginning of year ​ ​ 75,000 ​ $ 14.83 ​ ​ 89,000 ​ $ 14.91 ​ ​ 70,100 ​ $ 11.93 Granted ​ ​ — ​ — ​ — ​ — ​ 23,500 $ 22.93 Forfeited/Lapsed ​ ​ — ​ — ​ — ​ — ​ — ​ — Exercised ​ ​ (6,100) $ 18.15 ​ (14,000) $ 15.32 ​ (4,600) $ 10.43 Outstanding, end of period ​ ​ 68,900 ​ $ 14.54 ​ 75,000 ​ $ 14.83 ​ 89,000 ​ $ 14.91 Exercisable, end of period ​ ​ 59,500 ​ $ 13.21 ​ 50,720 ​ $ 12.87 ​ 45,040 ​ $ 12.98 Weighted average fair value at grant date of options granted ​ ​ n/a ​ ​ ​ ​ ​ n/a ​ ​ ​ ​ $ 12.58 ​ ​ ​ Total intrinsic value of options exercised ​ $ 141,000 ​ ​ ​ ​ $ 209,000 ​ ​ ​ ​ $ 58,000 ​ ​ ​ Total intrinsic value of options outstanding ​ $ 2,578,000 ​ ​ ​ ​ $ 1,486,000 ​ ​ ​ ​ $ 561,000 ​ ​ ​ Total intrinsic value of options exercisable ​ $ 2,305,000 ​ ​ ​ ​ $ 1,104,000 ​ ​ ​ ​ $ 354,000 ​ ​ ​
Schedule of options outstanding	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Options outstanding ​ Options exercisable ​ ​ Weighted average Weighted ​ Weighted ​ ​ Number ​ remaining ​ average exercise ​ Number ​ average exercise Range of exercise prices ​ outstanding ​ contractual life ​ price ​ exercisable ​ price $8.10 - $22.93 ​ 68,900 5.71 ​ $ 14.54 59,500 ​ $ 13.21 ​ ​ 68,900 5.71 ​ $ 14.54 59,500 ​ $ 13.21
2020 Non-Employee Stock Option Plan
Stock Options
Schedule of fair value and valuation assumptions	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2024 2023 2022 Risk-free interest rates n/a ​ 3.03 - 3.40 % 1.68 % Expected lives n/a ​ 7.23 - 7.27 Years ​ 6.18 Years ​ Expected volatility n/a ​ 43 % 43 % Expected dividend yields n/a ​ 0 % 0 %
Schedule of plan activity	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2024 ​ 2023 ​ 2022 ​ ​ ​ ​ ​ Weighted average ​ ​ ​ ​ Weighted average ​ ​ ​ ​ Weighted average ​ Options exercise price Options exercise price Options exercise price Outstanding, beginning of year ​ 56,900 $ 23.35 ​ ​ 26,900 $ 18.64 ​ ​ 10,000 $ 11.40 Granted ​ — ​ ​ — ​ ​ 30,000 ​ $ 27.57 ​ ​ 16,900 ​ $ 22.93 Forfeited/Lapsed ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Exercised ​ — ​ — ​ ​ — ​ — ​ ​ — ​ — Outstanding, end of period ​ 56,900 ​ $ 23.35 ​ ​ 56,900 ​ $ 23.35 ​ ​ 26,900 ​ $ 18.64 Exercisable, end of period ​ 30,140 ​ $ 21.72 ​ ​ 18,760 ​ $ 20.73 ​ ​ 7,380 ​ $ 16.68 Weighted average fair value at grant date of options granted ​ ​ n/a ​ ​ $ 13.74 ​ ​ ​ $ 12.58 ​ ​ Total intrinsic value of options exercised ​ n/a ​ ​ n/a ​ ​ ​ n/a ​ ​ Total intrinsic value of options outstanding ​ $ 1,627,000 ​ ​ $ 643,000 ​ ​ ​ $ 92,000 ​ ​ Total intrinsic value of options exercisable ​ $ 911,000 ​ ​ $ 261,000 ​ ​ ​ $ 37,000 ​ ​
Schedule of options outstanding	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Options outstanding ​ Options exercisable ​ ​ ​ ​ Weighted average ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Number ​ remaining ​ Weighted average ​ Number ​ Weighted average Range of exercise prices outstanding contractual life exercise price exercisable exercise price $11.40 - $30.71 56,900 7.59 ​ $ 23.35 30,140 ​ $ 21.72 ​ 56,900 7.59 ​ $ 23.35 30,140 ​ $ 21.72
2022 Employee Stock Option Plan
Stock Options
Schedule of fair value and valuation assumptions	​ ​ ​ ​ ​ ​ ​ ​ 2024 2023 Risk-free interest rates 4.42 - 4.62 % 3.84 % Expected lives 5.63 - 5.87 Years ​ 7.28 Years ​ Expected volatility 56 % 45 % Expected dividend yields .76 - 1.01 % 0.62 %
Schedule of plan activity	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2024 2023 ​ ​ ​ ​ ​ Weighted average ​ ​ ​ Weighted average ​ Options exercise price Options exercise price Outstanding, beginning of year ​ 5,000 $ 40.01 ​ — ​ — Granted ​ 130,000 ​ $ 41.38 ​ 5,000 ​ $ 40.01 Forfeited/Lapsed ​ ​ (5,000) ​ ​ (40.01) ​ — ​ ​ — Exercised ​ — ​ — ​ — ​ — Outstanding, end of period ​ 130,000 ​ $ 41.38 ​ 5,000 ​ $ 40.01 Exercisable, end of period ​ 26,000 ​ $ 41.38 ​ 1,000 ​ $ 40.01 Weighted average fair value at grant date of options granted ​ $ 21.29 ​ $ 19.77 ​ ​ Total intrinsic value of options exercised ​ n/a ​ n/a ​ ​ Total intrinsic value of options outstanding ​ $ 1,375,000 ​ $ — ​ ​ Total intrinsic value of options exercisable ​ $ 275,000 ​ $ — ​ ​
Schedule of options outstanding	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Options outstanding ​ Options exercisable ​ ​ ​ ​ Weighted average ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Number ​ remaining ​ Weighted average ​ Number ​ Weighted average Range of exercise prices outstanding contractual life exercise price exercisable exercise price $21.60 - $49.39 130,000 9.81 ​ $ 41.38 26,000 ​ $ 41.38 ​ 130,000 9.81 ​ $ 41.38 26,000 ​ $ 41.38

Commitments and Contingencies (

Commitments and Contingencies (Tables)	12 Months Ended
	Jun. 30, 2024
Commitments and Contingencies.
Schedule of supplemental balance sheet information	​ ​ ​ ​ ​ Weighted-average remaining lease term 68 Years ​ Weighted-average discount rate ​ 6.25 %
Schedule of maturities of lease liabilities	The following is a schedule, by years, of maturities of lease liabilities as of June 30, 2024 (in thousands): ​ ​ ​ ​ Year Ending June 30, Amount 2025 ​ $ 345 2026 ​ 347 2027 ​ 349 2028 ​ 351 2029 ​ 354 Thereafter ​ ​ 29,713 Total future minimum lease payments ​ $ 31,459 Less: Imputed interest ​ ​ 25,972 Total ​ $ 5,487

Geographical Data (Tables)

Geographical Data (Tables)	12 Months Ended
	Jun. 30, 2024
Geographical Data
Schedule of sales to external customers	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fiscal Year ended June 30, ​ ​ 2024 2023 2022 Sales to external customers (1) ​ ​ ​ ​ Domestic ​ $ 187,724 ​ $ 168,619 ​ $ 142,059 Foreign ​ 1,096 ​ 1,378 ​ 1,534 Total Net Sales ​ $ 188,820 ​ $ 169,997 ​ $ 143,593 (1) All of the Company’s sales originate in the United States and are shipped primarily from the Company’s facilities in the United States. There were no sales into any one foreign country in excess of 10% of total Net Sales.
Schedule of assets in individual foreign country by country	​ ​ ​ ​ ​ ​ ​ ​ ​ 2024 2023 Identifiable assets: ​ ​ ​ United States ​ $ 164,365 ​ $ 122,995 Dominican Republic (2) ​ 43,387 ​ 43,659 Total Identifiable Assets ​ $ 207,752 ​ $ 166,654 (2) Consists primarily of inventories (2024 = $33,584 ; 2023 = $33,477 ), operating lease right of use (2024 = $5,487 ; 2023 = $5,797 ) and fixed assets (2024 = $3,623 ; 2023 = $3,958 ) located at the Company’s principal manufacturing facility in the Dominican Republic.

Nature of Business and Summar_4

Nature of Business and Summary of Significant Accounting Policies (Details)	12 Months Ended
	Jun. 30, 2024 USD ($) segment	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($)
Nature of Business and Summary of Significant Accounting Policies
Allowance for credit losses	$ 32,000	$ 131,000
Stock-Based Compensation
Number of share incentive programs	five
Stock based compensation expense	$ 1,733,000	1,464,000	$ 1,649,000
Foreign currency realized/unrealized gains(loss)	$ 0	$ 0	$ 0
Segment Reporting
Number of operating segments (in segments) | segment	1
Number of reportable segments (in segments) | segment	1

Nature of Business and Summar_5

Nature of Business and Summary of Significant Accounting Policies - Cash and Cash Equivalents and Investments (Details) - USD ($)	Jun. 30, 2024	Jun. 30, 2023
Accounting policies
Cash and cash equivalents	$ 65,341,000	$ 35,955,000
Investments - other	26,980,000	25,660,000
Certificate of Deposits
Accounting policies
Investments - other	$ 26,980,000	25,660,000
Certificate of Deposits | Cash and Cash Equivalents
Accounting policies
Interest Rate	4.70%
Cost	$ 5,374,000	15,112,000
Carrying Value	5,402,000	$ 15,179,000
Certificate of Deposits | Cash and Cash Equivalents | Minimum
Accounting policies
Interest Rate		4.59%
Certificate of Deposits | Cash and Cash Equivalents | Maximum
Accounting policies
Interest Rate		5%
Certificate of Deposits | Investments - other
Accounting policies
Cost	26,709,000	$ 25,359,000
Carrying Value	$ 26,980,000	$ 25,660,000
Certificate of Deposits | Investments - other | Minimum
Accounting policies
Interest Rate	4.55%	4.80%
Certificate of Deposits | Investments - other | Maximum
Accounting policies
Interest Rate	4.75%	5.15%
Cash
Accounting policies
Cash and cash equivalents	$ 18,823,000	$ 20,713,000
Money Market Fund
Accounting policies
Cash and cash equivalents	41,116,000	63,000
Certificate of Deposits
Accounting policies
Cash and cash equivalents	$ 5,402,000	15,179,000
Cash and Cash Equivalents | Minimum
Accounting policies
Interest Rate	4.70%
Short Term Time Deposits Member
Accounting policies
Cash and cash equivalents	$ 46,518,000	$ 15,242,000

Nature of Business and Summar_6

Nature of Business and Summary of Significant Accounting Policies - Intangible Assets (Details) - USD ($)	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022
Intangible assets
Amortization expense	$ 337,000	$ 361,000	$ 391,000
Changes in intangible assets
Carrying value	13,848,000	13,848,000
Accumulated amortization	(10,246,000)	(9,909,000)
Net book value	3,602,000	$ 3,939,000
Future amortization expense
2025	315,000
2026	297,000
2027	283,000
2028	269,000
2029	$ 210,000
Weighted average remaining period	14 years 9 months 18 days	15 years 6 months
Customer relationships
Changes in intangible assets
Carrying value	$ 9,800,000	$ 9,800,000
Accumulated amortization	(9,436,000)	(9,302,000)
Net book value	364,000	498,000
Trade name
Changes in intangible assets
Carrying value	4,048,000	4,048,000
Accumulated amortization	(810,000)	(607,000)
Net book value	$ 3,238,000	$ 3,441,000

Nature of Business and Summar_7

Nature of Business and Summary of Significant Accounting Policies - Income Statement location (Details) - USD ($)	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022
Net sales	$ 188,820,000	$ 169,997,000	$ 143,593,000
Cost of sales	87,066,000	96,764,000	84,437,000
Research and development	10,763,000	9,328,000	8,024,000
Selling, General and Administrative Expenses
Advertising and promotion costs	3,262,000	2,931,000	2,889,000
Operating Expenses
Research and development	10,763,000	9,328,000	8,024,000
Cost of sales | Shipping and Handling
Cost of sales	1,573,000	1,697,000	1,425,000
Sales revenue, net | Shipping and Handling
Net sales	$ 349,000	$ 450,000	$ 428,000

Nature of Business and Summar_8

Nature of Business and Summary of Significant Accounting Policies - Net Income per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022
Nature of Business and Summary of Significant Accounting Policies
Basic EPS	$ 49,818	$ 27,127	$ 19,599
Diluted EPS	$ 49,818	$ 27,127	$ 19,599
Weighted average
Weighted Average Shares, Basic EPS	36,812,000	36,741,000	36,725,000
Weighted Average Shares, Stock Options	254,000	264,000	142,000
Weighted Average Shares, Diluted EPS	37,066,000	37,005,000	36,867,000
Effect of Dilutive Securities:
Basic (in dollars per share)	$ 1.35	$ 0.74	$ 0.53
Stock Options (in dollars per share)	(0.01)	(0.01)
Diluted (in dollars per share)	$ 1.34	$ 0.73	$ 0.53
Excluded from diluted EPS	19,663	7,534	214,109

Revenue Recognition and Contr_3

Revenue Recognition and Contracts with Customers (Details)	12 Months Ended
	Jun. 30, 2024 USD ($) segment	Jun. 30, 2023 USD ($)	Jun. 30, 2022
Revenue:
Number of operating segments (in segments) | segment	1
Sales returns, rebates and allowances as a percentage of gross sales	7%	7%	10%
Other current assets
Revenue:
Return-related assets	$ 1,586,000	$ 1,338,000
Accrued expenses
Revenue:
Refund liabilities	$ 6,295,000	$ 5,521,000

Revenue Recognition and Contr_4

Revenue Recognition and Contracts with Customers - Disaggregation (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022
Revenue:
Revenues	$ 188,820	$ 169,997	$ 143,593
Intrusion and access alarm products
Revenue:
Revenues	39,372	47,344	49,606
Door locking devices
Revenue:
Revenues	73,699	62,718	48,006
Services
Revenue:
Revenues	$ 75,749	$ 59,935	$ 45,981

Revenue Recognition and Contr_5

Revenue Recognition and Contracts with Customers - Allowance (Details) - Allowance for doubtful accounts (deducted from accounts receivable) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period	$ 131	$ 243	$ 226
Charged to costs and expenses		6	17
(recoveries)	(99)	(118)
Balance at end of period	$ 32	$ 131	$ 243

Business and Credit Concentra_2

Business and Credit Concentrations (Details) - Accounts Receivable - Credit Concentration Risk	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022
Customer One
Business and Credit Concentrations
Concentration risk (as a percent)	17%	19%	22%
Customer Two
Business and Credit Concentrations
Concentration risk (as a percent)	12%	14%
Customer Three
Business and Credit Concentrations
Concentration risk (as a percent)			16%

Fair Value Measurements (Detail

Fair Value Measurements (Details) - USD ($)	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Marketable Securities:
Short-term investments	$ 26,980,000	$ 25,660,000
Transfers between Level 1 to 2	0	0
Transfers in or out of level 3	0	0
Fair Value, Recurring
Marketable Securities:
Cash equivalents	46,518,000	15,242,000
Short-term investments	26,980,000	25,660,000
Fair Value	5,398,000	5,136,000
Fair Value, Recurring | Certificate of Deposits
Marketable Securities:
Cash equivalents	5,402,000	15,179,000
Short-term investments	26,980,000	25,660,000
Fair Value, Recurring | Money Market Fund
Marketable Securities:
Cash equivalents	41,116,000	63,000
Fair Value, Recurring | Mutual Funds
Marketable Securities:
Fair Value	5,398,000	5,136,000
Fair Value, Recurring | Level 1
Marketable Securities:
Cash equivalents	46,518,000	15,242,000
Short-term investments	26,980,000	25,660,000
Fair Value	5,398,000	5,136,000
Fair Value, Recurring | Level 1 | Certificate of Deposits
Marketable Securities:
Cash equivalents	5,402,000	15,179,000
Short-term investments	26,980,000	25,660,000
Fair Value, Recurring | Level 1 | Money Market Fund
Marketable Securities:
Cash equivalents	41,116,000	63,000
Fair Value, Recurring | Level 1 | Mutual Funds
Marketable Securities:
Fair Value	$ 5,398,000	$ 5,136,000

Marketable Securities (Details)

Marketable Securities (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022
Marketable Securities
Net gains recognized during the period on marketable securities	$ 207	$ 147	$ 81
Unrealized gains (losses) recognized during the reporting period on marketable securities still held at the reporting date	55	(79)	(426)
Marketable securities	$ 262	$ 68	$ (345)

Marketable Securities - Investm

Marketable Securities - Investments (Details) - Mutual Funds - USD ($) $ in Thousands	Jun. 30, 2024	Jun. 30, 2023
Net Investment Income [Line Items]
Cost	$ 5,857	$ 5,651
Fair Value	5,398	5,136
Unrealized Gain (Loss)	$ (459)	$ (515)

Marketable Securities - Availab

Marketable Securities - Available-for-sale securities in a loss position (Details) - USD ($)	Jun. 30, 2024	Jun. 30, 2023
Available-for-sale securities in a loss position
Continuous Loss Position for 12 Months or More, Estimated Fair Value	$ 4,677,000	$ 4,457,000
Continuous Loss Position for 12 Months or More, Gross Unrealized Losses	486,000	537,000
Mutual funds
Available-for-sale securities in a loss position
Continuous Loss Position for 12 Months or More, Estimated Fair Value	4,677,000	4,457,000
Continuous Loss Position for 12 Months or More, Gross Unrealized Losses	$ 486,000	$ 537,000

Inventories - Types (Details)

Inventories - Types (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Jun. 30, 2023
Inventories
Component parts	$ 32,283	$ 29,939
Work-in-process	7,509	7,726
Finished product	10,121	10,684
Inventories	$ 49,913	$ 48,349

Inventories - Classification (D

Inventories - Classification (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Jun. 30, 2023
Inventories
Current	$ 34,804	$ 35,062
Non-current	15,109	13,287
Inventories	$ 49,913	$ 48,349

Inventories - Excess and slow-m

Inventories - Excess and slow-moving inventory (Details) - USD ($)	Jun. 30, 2024	Jun. 30, 2023
Excess and slow-moving inventory and net realizable value reserve
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Reserve for excess and slow-moving inventory	$ 5,026,000	$ 3,367,000

Property, Plant, and Equipmen_2

Property, Plant, and Equipment (Details) - USD ($)	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022
Property plant and equipment
Gross	$ 53,857,000	$ 52,371,000
Less: accumulated depreciation and amortization	(44,780,000)	(43,063,000)
Net	9,077,000	9,308,000
Depreciation and amortization	1,826,000	1,569,000	$ 1,380,000
Land
Property plant and equipment
Gross	904,000	904,000
Buildings
Property plant and equipment
Gross	$ 8,911,000	8,911,000
Buildings | Minimum
Property plant and equipment
Useful life	30 years
Buildings | Maximum
Property plant and equipment
Useful life	40 years
Molds and dies
Property plant and equipment
Gross	$ 7,539,000	7,517,000
Molds and dies | Minimum
Property plant and equipment
Useful life	3 years
Molds and dies | Maximum
Property plant and equipment
Useful life	5 years
Furniture and fixtures
Property plant and equipment
Gross	$ 3,613,000	3,387,000
Furniture and fixtures | Minimum
Property plant and equipment
Useful life	5 years
Furniture and fixtures | Maximum
Property plant and equipment
Useful life	10 years
Machinery and equipment
Property plant and equipment
Gross	$ 29,761,000	28,574,000
Machinery and equipment | Minimum
Property plant and equipment
Useful life	3 years
Machinery and equipment | Maximum
Property plant and equipment
Useful life	10 years
Building improvements
Property plant and equipment
Gross	$ 3,129,000	$ 3,078,000
Property, Plant, and Equipment, Useful Life, Term, Description [Extensible Enumeration]	us-gaap:UsefulLifeShorterOfTermOfLeaseOrAssetUtilityMember

Income Taxes - Income (loss) be

Income Taxes - Income (loss) before income taxes attributable to domestic and foreign operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022
Income Taxes
Domestic	$ 6,936	$ 4,926	$ 6,461
Foreign	49,450	26,302	15,385
Income before Provision for Income Taxes	$ 56,386	$ 31,228	$ 21,846

Income Taxes - Provision (Detai

Income Taxes - Provision (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022
Current income taxes:
Federal	$ 8,329	$ 5,899	$ 2,161
State	1,015	1,020	300
Total Current income taxes	9,344	6,919	2,461
Deferred income taxes:
Federal	(2,367)	(2,334)	(214)
State	(409)	(484)
Total Deferred income taxes	(2,776)	(2,818)	(214)
Provision for income taxes	$ 6,568	$ 4,101	$ 2,247

Income Taxes - Reconciliation (

Income Taxes - Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022
Reconciliation of effective tax rate
Tax at Federal statutory rate	$ 11,841	$ 6,558	$ 4,588
Meals and entertainment	66	48	29
State income taxes, net of Federal income tax benefit	935	436	238
Global intangible low-taxed income	5,259	2,739	1,697
R&D Credit	(632)	(661)	(554)
Executive Compensation	47
Foreign source income not subject to tax	(10,518)	(5,524)	(3,231)
Non-taxable debt extinguishment			(820)
Uncertain Tax Positions	78	63	20
Other, net	(508)	442	280
Provision for income taxes	$ 6,568	$ 4,101	$ 2,247
% of Pre-tax Income
Tax at Federal statutory rate	21%	21%	21%
Meals and entertainment	0.10%	0.20%	0.10%
State income taxes, net of Federal income tax benefit	1.70%	1.40%	1.10%
Global intangible low-taxed income	9.30%	8.80%	7.80%
R&D Credit	(1.10%)	(2.10%)	(2.50%)
Executive Compensation	0.10%
Foreign Source income not subject to Tax	(18.70%)	(17.70%)	(14.80%)
Non-taxable debt extinguishment			(3.80%)
Uncertain Tax Positions	0.10%	0.20%	0.10%
Other, net	(0.90%)	1.40%	1.30%
Effective tax rate	11.60%	13.10%	10.30%

Income Taxes - Deferred (Detail

Income Taxes - Deferred (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Jun. 30, 2023
Components of Deferred Tax Assets and Liabilities [Abstract]
Accounts receivable	$ 8	$ 22
Inventories	541	397
Accrued liabilities	676	857
Stock based compensation expense	452	250
Revenue reserves	439	333
Unrealized loss on marketable securities	136	124
Capitalized research and development cost	5,447	2,923
Other	2	4
Total Deferred Tax Assets	7,701	4,910
Deferred income tax assets, net of valuation allowance	7,701	4,910
Intangibles	(874)	(916)
Property, plant and equipment	(786)	(729)
Other deferred tax liabilities	(613)	(613)
Total Deferred Tax Liability	(2,273)	(2,258)
Net Deferred Tax Asset	$ 5,428	$ 2,652

Income Taxes - Unrecognized Rol

Income Taxes - Unrecognized Roll Forward (Details) - USD ($)	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022
Reconciliation of unrecognized tax benefits:
Balance of gross unrecognized tax benefits as of Beginning of Year	$ 700,000	$ 678,000	$ 678,000
Increase to unrecognized tax benefits resulting from a state filing tax position	0	22,000	0
Balance of gross unrecognized tax benefits as of End of Year	$ 700,000	$ 700,000	$ 678,000

Income Taxes (Details)

Income Taxes (Details) - USD ($)	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2021
Income Taxes
Increase (Decrease) to unrecognized tax benefits resulting from a state filing tax position	$ 0
Interest expense accrued	217,000
Accrued penalties	5,000
Unrecognized net tax benefits	$ 700,000	$ 700,000	$ 678,000	$ 678,000

Debt (Details)

Debt (Details) - USD ($)	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2022	Feb. 09, 2024	Feb. 08, 2024	Jun. 30, 2023	Jun. 30, 2020
The Revolver Agreement
Debt
Line of credit, maximum borrowing capacity			$ 20,000,000	$ 11,000,000
Stock collateral (as a percent)	65%
Revolving line of credit:
Revolving line of credit	$ 0				$ 0
The Revolver Agreement | Minimum
Debt
Basis spread	1.2645%
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration]	us-gaap:SecuredOvernightFinancingRateSofrOvernightIndexSwapRateMember
The Revolver Agreement | Maximum
Debt
Basis spread	1.3645%
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration]	us-gaap:SecuredOvernightFinancingRateSofrOvernightIndexSwapRateMember
Paycheck Protection Program
Debt
Principal amount						$ 3,904,000
Loan forgiven		$ 3,904,000

Stock Options - Plan Informatio

Stock Options - Plan Information (Details) - USD ($)	1 Months Ended	12 Months Ended
	Dec. 31, 2022	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2021	May 31, 2020	Dec. 31, 2018	Dec. 31, 2012
Stock Options
Stock-based compensation expense, allocated		$ 1,733,000	$ 1,464,000	$ 1,649,000
Basic earnings per share from share based compensation costs		$ 0.05	$ 0.04	$ 0.04
Diluted earnings per share from share based compensation costs		$ 0.05	$ 0.04	$ 0.04
Proceeds from stock option exercises		$ 427,000	$ 85,000	$ 155,000
Director [Member]
Stock Options
Exercised		153,644	53,000	34,800
Number of Stock options settled by withholding of shares		115,644	43,600	6,800
2012 Employee Stock Option Plan
Stock Options
Shares authorized (in shares)		1,900,000
Threshold percentage of voting rights		10%
Premium on fair market value (as a percent)		110%
Term		10 years
Vesting rights percentage		20%
Outstanding (in shares)		363,036	521,580	523,080	214,080
Exercisable, end of period		190,960	247,628	176,752
Available for grant (in shares)		0
Granted		0	37,500	338,000
Exercised		147,544	39,000	29,000
Number of Stock options settled by exchange of shares				1,000
Number of Stock options settled by withholding of shares			29,600
Withheld (in shares)		46,570		153
Shares converted (in shares)		10,150
Proceeds from stock option exercises		$ 427,000	$ 84,000	$ 155,000
Deferred tax benefit		119,000	0	$ 0
Unearned stock based compensation		$ 1,094,000	$ 1,971,000
Vested		101,876	109,876	107,576
Fair Value		$ 946,000	$ 981,000	$ 1,040,000
2012 Non-Employee Stock Option Plan
Stock Options
Shares authorized (in shares)								100,000
Term		10 years
Vesting rights percentage		20%
Outstanding (in shares)		20,400	20,400	20,400	12,000
Exercisable, end of period		16,560	13,920	11,280
Available for grant (in shares)		0
Granted		0	0	9,600
Exercised		0	0	1,200
Number of Stock options settled by withholding of shares		109,544
Proceeds from stock option exercises		$ 0	$ 0	$ 0
Deferred tax benefit		0	$ 0	$ 4,000
Conversion of stock, shares issued			258
Unearned stock based compensation		$ 24,000	$ 46,000
Vested		2,640	2,640	6,240
Fair Value			$ 24,000	$ 39,000
2018 Non-Employee Stock Option Plan
Stock Options
Shares authorized (in shares)							100,000
Term		10 years
Vesting rights percentage		20%
Outstanding (in shares)		68,900	75,000	89,000	70,100
Exercisable, end of period		59,500	50,720	45,040
Available for grant (in shares)		0
Granted		0	0	23,500
Exercised		6,100	14,000	4,600
Withheld (in shares)		2,700
Proceeds from stock option exercises		$ 0	$ 0	$ 0
Deferred tax benefit		$ 30,000	$ 44,000	$ 12,000
Conversion of stock, shares issued		7,235	2,075
Unearned stock based compensation		$ 59,000	$ 135,000
Vested		14,880	19,680	19,680
Fair Value		$ 124,000	$ 149,000	$ 160,000
2020 Non-Employee Stock Option Plan
Stock Options
Shares authorized (in shares)						100,000
Term		10 years
Vesting rights percentage		20%
Outstanding (in shares)		56,900	56,900	26,900	10,000
Exercisable, end of period		30,140	18,760	7,380
Available for grant (in shares)		43,100
Granted		0	30,000	16,900
Exercised		0	0	0
Unearned stock based compensation		$ 215,000	$ 344,000
Vested		11,380	11,380	5,380
Fair Value		$ 129,000	$ 129,000	$ 55,000
2022 Employee Stock Option Plan
Stock Options
Shares authorized (in shares)	950,000
Threshold percentage of voting rights	10%
Premium on fair market value (as a percent)	110%
Term	10 years
Vesting rights percentage	20%
Outstanding (in shares)		130,000	5,000
Exercisable, end of period		26,000	1,000
Available for grant (in shares)		820,000
Granted		130,000	5,000
Exercised			0
Unearned stock based compensation		$ 2,066,000	$ 74,000
Vested		26,000	1,000
Fair Value		$ 553,000	$ 20,000

Stock Options - Fair Value Assu

Stock Options - Fair Value Assumptions (Details)	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022
Stock Options
Risk-free interest rates			1.68%
Expected volatility			43%
2012 Employee Stock Option Plan
Stock Options
Risk-free interest rates		3.03%	1.64%
Expected lives		7 years 3 months 7 days
Expected volatility		43%	43%
Expected dividend yields		0%	0%
2012 Non-Employee Stock Option Plan
Stock Options
Expected lives			6 years 2 months 4 days
2018 Non-Employee Stock Option Plan
Stock Options
Risk-free interest rates			1.68%
Expected lives			6 years 2 months 4 days
Expected volatility			43%
Expected dividend yields			0%
2020 Non-Employee Stock Option Plan
Stock Options
Risk-free interest rates, min		3.03%
Risk-free interest rates, max		3.40%
Risk-free interest rates			1.68%
Expected lives			6 years 2 months 4 days
Expected volatility		43%	43%
Expected dividend yields		0%	0%
2020 Non-Employee Stock Option Plan | Minimum
Stock Options
Expected lives		7 years 2 months 23 days
2020 Non-Employee Stock Option Plan | Maximum
Stock Options
Expected lives		7 years 3 months 7 days
2022 Employee Stock Option Plan
Stock Options
Risk-free interest rates, min	4.42%
Risk-free interest rates, max	4.62%
Risk-free interest rates		3.84%
Expected lives		7 years 3 months 10 days
Expected volatility	56%	45%
Expected dividend yields		0.62%
2022 Employee Stock Option Plan | Minimum
Stock Options
Expected lives	5 years 7 months 17 days
Expected dividend yields	0.76%
2022 Employee Stock Option Plan | Maximum
Stock Options
Expected lives	5 years 10 months 13 days
Expected dividend yields	1.01%

Stock Options - Activity (Detai

Stock Options - Activity (Details) - USD ($)	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022
2012 Employee Stock Option Plan
Options
Outstanding, beginning of year	521,580	523,080	214,080
Granted	0	37,500	338,000
Forfeited/Lapsed	(11,000)
Exercised	(147,544)	(39,000)	(29,000)
Outstanding, end of period	363,036	521,580	523,080
Exercisable, end of period	190,960	247,628	176,752
Weighted average exercise price
Weighted average exercise price, beginning of year	$ 19.37	$ 18.59	$ 9.59
Granted (per share)		26.94	23.17
Forfeited/Lapsed (per share)	(3.16)
Exercised (per share)	15.43	10.44	5.45
Weighted average exercise price, end of period	21.47	19.37	18.59
Exercisable, end of period, weighted average exercise price	$ 20.87	17.16	14.68
Additional disclosures
Weighted average fair value at grant date of options granted		$ 13.36	$ 12.16
Total intrinsic value of options exercised	$ 3,972,000	$ 822,000	$ 502,000
Total intrinsic value of options outstanding	11,067,000	7,968,000	1,916,000
Total intrinsic value of options exercisable	$ 5,936,000	$ 4,330,000	$ 1,218,000
2012 Non-Employee Stock Option Plan
Options
Outstanding, beginning of year	20,400	20,400	12,000
Granted	0	0	9,600
Exercised	0	0	(1,200)
Outstanding, end of period	20,400	20,400	20,400
Exercisable, end of period	16,560	13,920	11,280
Weighted average exercise price
Weighted average exercise price, beginning of year	$ 14.39	$ 14.39	$ 6.55
Granted (per share)			22.93
Forfeited/Lapsed (per share)			0
Exercised (per share)			4.35
Weighted average exercise price, end of period	14.39	14.39	14.39
Exercisable, end of period, weighted average exercise price	$ 12.41	$ 10.99	8.92
Additional disclosures
Weighted average fair value at grant date of options granted			$ 12.58
Total intrinsic value of options exercised			$ 19,000
Total intrinsic value of options outstanding	$ 766,000	$ 413,000	149,000
Total intrinsic value of options exercisable	$ 655,000	$ 329,000	$ 136,000
2018 Non-Employee Stock Option Plan
Options
Outstanding, beginning of year	75,000	89,000	70,100
Granted	0	0	23,500
Exercised	(6,100)	(14,000)	(4,600)
Outstanding, end of period	68,900	75,000	89,000
Exercisable, end of period	59,500	50,720	45,040
Weighted average exercise price
Weighted average exercise price, beginning of year	$ 14.83	$ 14.91	$ 11.93
Granted (per share)			22.93
Exercised (per share)	18.15	15.32	10.43
Weighted average exercise price, end of period	14.54	14.83	14.91
Exercisable, end of period, weighted average exercise price	$ 13.21	$ 12.87	12.98
Additional disclosures
Weighted average fair value at grant date of options granted			$ 12.58
Total intrinsic value of options exercised	$ 141,000	$ 209,000	$ 58,000
Total intrinsic value of options outstanding	2,578,000	1,486,000	561,000
Total intrinsic value of options exercisable	$ 2,305,000	$ 1,104,000	$ 354,000
2020 Non-Employee Stock Option Plan
Options
Outstanding, beginning of year	56,900	26,900	10,000
Granted	0	30,000	16,900
Exercised	0	0	0
Outstanding, end of period	56,900	56,900	26,900
Exercisable, end of period	30,140	18,760	7,380
Weighted average exercise price
Weighted average exercise price, beginning of year	$ 23.35	$ 18.64	$ 11.40
Granted (per share)		27.57	22.93
Weighted average exercise price, end of period	23.35	23.35	18.64
Exercisable, end of period, weighted average exercise price	$ 21.72	20.73	16.68
Additional disclosures
Weighted average fair value at grant date of options granted		$ 13.74	$ 12.58
Total intrinsic value of options outstanding	$ 1,627,000	$ 643,000	$ 92,000
Total intrinsic value of options exercisable	$ 911,000	$ 261,000	$ 37,000
2022 Employee Stock Option Plan
Options
Outstanding, beginning of year	5,000
Granted	130,000	5,000
Forfeited/Lapsed	(5,000)
Exercised		0
Outstanding, end of period	130,000	5,000
Exercisable, end of period	26,000	1,000
Weighted average exercise price
Weighted average exercise price, beginning of year	$ 40.01
Granted (per share)	41.38	$ 40.01
Forfeited/Lapsed (per share)	(40.01)
Weighted average exercise price, end of period	41.38	40.01
Exercisable, end of period, weighted average exercise price	41.38	40.01
Additional disclosures
Weighted average fair value at grant date of options granted	$ 21.29	$ 19.77
Total intrinsic value of options outstanding	$ 1,375,000
Total intrinsic value of options exercisable	$ 275,000

Stock Options - Exercise Price

Stock Options - Exercise Price Range (Details)	12 Months Ended
	Jun. 30, 2024 $ / shares shares
2012 Employee Stock Option Plan
Share based compensation, exercise prices
Options outstanding (in shares) | shares	363,036
Weighted average remaining contractual life	7 years 1 month 28 days
Weighted average exercise price	$ 21.47
Number exercisable | shares	190,960
Exercisable, Weighted average exercise price	$ 20.87
2012 Employee Stock Option Plan | Exercise price range
Share based compensation, exercise prices
Exercise price upper limit	26.94
Exercise price lower limit	$ 10.02
2012 Non-Employee Stock Option Plan
Share based compensation, exercise prices
Options outstanding (in shares) | shares	20,400
Weighted average remaining contractual life	5 years 7 months 24 days
Weighted average exercise price	$ 14.39
Number exercisable | shares	16,560
Exercisable, Weighted average exercise price	$ 12.41
2012 Non-Employee Stock Option Plan | Exercise price range
Share based compensation, exercise prices
Exercise price upper limit	22.93
Exercise price lower limit	$ 4.35
2018 Non-Employee Stock Option Plan
Share based compensation, exercise prices
Options outstanding (in shares) | shares	68,900
Weighted average remaining contractual life	5 years 8 months 15 days
Weighted average exercise price	$ 14.54
Number exercisable | shares	59,500
Exercisable, Weighted average exercise price	$ 13.21
2018 Non-Employee Stock Option Plan | Exercise price range
Share based compensation, exercise prices
Exercise price upper limit	22.93
Exercise price lower limit	$ 8.10
2020 Non-Employee Stock Option Plan
Share based compensation, exercise prices
Options outstanding (in shares) | shares	56,900
Weighted average remaining contractual life	7 years 7 months 2 days
Weighted average exercise price	$ 23.35
Number exercisable | shares	30,140
Exercisable, Weighted average exercise price	$ 21.72
2020 Non-Employee Stock Option Plan | Exercise price range
Share based compensation, exercise prices
Exercise price upper limit	30.71
Exercise price lower limit	$ 11.40
2022 Employee Stock Option Plan
Share based compensation, exercise prices
Options outstanding (in shares) | shares	130,000
Weighted average remaining contractual life	9 years 9 months 21 days
Weighted average exercise price	$ 41.38
Number exercisable | shares	26,000
Exercisable, Weighted average exercise price	$ 41.38
2022 Employee Stock Option Plan | Exercise price range
Share based compensation, exercise prices
Exercise price upper limit	49.39
Exercise price lower limit	$ 21.60

Stockholders' Equity Transact_2

Stockholders' Equity Transactions (Details) - $ / shares	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022
Equity
Cash dividend declared (in dollars per share)	$ 0.36	$ 0.0625
O 2023 Q4 Dividends [Member]
Equity
Dividends Payable, Date Declared	May 05, 2023
Cash dividend declared (in dollars per share)	$ 0.0625
Dividends Payable, Date to be Paid	Jun. 12, 2023
Dividends Payable, Date of Record	May 22, 2023
O 2024 Q1 Dividends [Member]
Equity
Dividends Payable, Date Declared	Aug. 18, 2023
Cash dividend declared (in dollars per share)	$ 0.08
Dividends Payable, Date to be Paid	Sep. 22, 2023
Dividends Payable, Date of Record	Sep. 01, 2023
O 2024 Q2 Dividends [Member]
Equity
Dividends Payable, Date Declared	Nov. 02, 2023
Cash dividend declared (in dollars per share)	$ 0.08
Dividends Payable, Date to be Paid	Dec. 22, 2023
Dividends Payable, Date of Record	Dec. 01, 2023
O 2024 Q3 Dividends [Member]
Equity
Dividends Payable, Date Declared	Feb. 01, 2024
Cash dividend declared (in dollars per share)	$ 0.10
Dividends Payable, Date to be Paid	Mar. 22, 2024
Dividends Payable, Date of Record	Mar. 01, 2024
O 2024 Q4 Dividends [Member]
Equity
Dividends Payable, Date Declared	May 02, 2024
Cash dividend declared (in dollars per share)	$ 0.10
Dividends Payable, Date to be Paid	Jun. 24, 2024
Dividends Payable, Date of Record	Jun. 03, 2024
Certain employee and directors
Equity
Exercised	153,644	53,000	34,800
Exercised, cashless	115,644	43,600	6,800
Surrendered (in shares)	49,270	17,385	2,486

Related Party Transaction (Deta

Related Party Transaction (Details) - USD ($)				1 Months Ended	12 Months Ended
	Apr. 08, 2024	Feb. 15, 2023	Feb. 13, 2023	Mar. 31, 2024	Jun. 30, 2024
Greenshoe Option
Related party transaction
Proceeds from the offering		$ 0			$ 0
Greenshoe Option | Selling, General and Administrative Expenses
Related party transaction
Offering expenses		$ 509,000			$ 407,000,000
President And Chairman & Executive Vice President And Chief Financial Officer
Related party transaction
Public offering price per share			$ 31.50
President And Chairman & Executive Vice President And Chief Financial Officer | Greenshoe Option
Related party transaction
Number of common stock sold		300,000
President And Chairman
Related party transaction
Number of common stock sold			2,012,500	2,000,000
Public offering price per share				$ 40.75
President And Chairman | Greenshoe Option
Related party transaction
Number of common stock sold	50,000			300,000
Executive Vice President And Chief Financial Officer
Related party transaction
Number of common stock sold			87,500

401(k) Plan (Details)

401(k) Plan (Details) - USD ($)	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022
401(k) Plan
Employer contribution	$ 258,000	$ 251,000	$ 191,000

Commitments and Contingencies -

Commitments and Contingencies - Leases (Details)			12 Months Ended
	Sep. 14, 2022 USD ($)	Sep. 13, 2022 USD ($)	Jun. 30, 2024 USD ($) a	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($)
Commitments and Contingencies.
Operating lease term			99 years
Area of land | a			4
Annual minimum rent	$ 235,000	$ 235,000
Annual service charges	$ 105,000	$ 53,000
Percentage of service charges increase	2%
Deduction of operating lease asset and liability, remeasurement	$ 1,300,000
Operating lease payments			$ 343,000	$ 335,000
Operating lease expense			$ 512,000	$ 458,000	$ 319,000
Weighted-average remaining lease term			68 years
Weighted-average discount rate			6.25%

Commitments and Contingencies_2

Commitments and Contingencies - Lease maturities (Details) $ in Thousands	Jun. 30, 2024 USD ($)
Schedule, by years, of maturities of lease liabilities
2025	$ 345
2026	347
2027	349
2028	351
2029	354
Thereafter	29,713
Total future minimum lease payments	31,459
Less: Imputed interest	25,972
Operating lease liability	$ 5,487

Commitments and Contingencies_3

Commitments and Contingencies - Litigation, etc. (Details)	12 Months Ended
	Jun. 30, 2024 USD ($) M agreement
Loss Contingencies
Number of employment agreement | agreement	3
Number of severance agreement | agreement	1
CEO
Loss Contingencies
Annual salary commitment | $	$ 942,000
Termination pay commitment rate applied to the average of the prior five calendar years compensation	299%
Minimum number of months either party gives the other notice of non-renewal	6
Number of months of salary if terminated by the company without cause	9
Number of months of health insurance terminated benefit	6
Salary | $	$ 604,000
SVP of Engineering
Loss Contingencies
Annual salary commitment | $	$ 440,000
Number of months of salary if terminated by the company without cause	9
Number of months of health insurance terminated benefit	6
SVP of Finance
Loss Contingencies
Annual salary commitment | $	$ 350,000
Number of months of salary if terminated by the company without cause	6
Number of months of health insurance terminated benefit	6

Geographical Data (Details)

Geographical Data (Details) $ in Thousands	12 Months Ended
	Jun. 30, 2024 USD ($) segment	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($)
Domestic and Foreign Operations
Number of operating segments (in segments) | segment	1
Net Sales	$ 188,820	$ 169,997	$ 143,593
Identifiable Assets	207,752	166,654
United States
Domestic and Foreign Operations
Net Sales	187,724	168,619	142,059
Identifiable Assets	164,365	122,995
Foreign
Domestic and Foreign Operations
Net Sales	1,096	1,378	$ 1,534
Dominican Republic
Domestic and Foreign Operations
Identifiable Assets	$ 43,387	$ 43,659

Geographical Data - Additional

Geographical Data - Additional information (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Jun. 30, 2023
Domestic and Foreign Operations
Inventories	$ 34,804	$ 35,062
Operating lease right of use	5,487	5,797
Fixed assets	9,077	9,308
Dominican Republic
Domestic and Foreign Operations
Inventories	33,584	33,477
Operating lease right of use	5,487	5,797
Fixed assets	$ 3,623	$ 3,958

Subsequent Events (Details)

Subsequent Events (Details) - $ / shares		12 Months Ended
	Aug. 22, 2024	Jun. 30, 2024	Jun. 30, 2023
Subsequent Event
Cash dividend declared (in dollars per share)		$ 0.36	$ 0.0625
O 2025 Q1 Dividends [Member]
Subsequent Event
Dividends Payable, Date Declared	Aug. 22, 2024
Cash dividend declared (in dollars per share)	$ 0.125
Dividends Payable, Date to be Paid	Oct. 03, 2024
Dividends Payable, Date of Record	Sep. 12, 2024