Summary of Significant Accounting Policies

Impact of the COVID-19 Pandemic

The ongoing global outbreak of coronavirus, which was declared a pandemic by the World Health Organization on March 11, 2020 and a national emergency by the President of the United States on March 13, 2020, has caused and is continuing to cause business slowdowns and shutdowns and turmoil in the financial markets both in the United States and abroad. IS&S is monitoring the impact of the COVID-19 pandemic on its business, including how it has impacted and will impact the Company's employees, customers, suppliers and distribution channels. The Company has not yet seen a material impact from the COVID-19 pandemic on its business, financial position, liquidity, or ability to service customers or maintain critical operations.

Cash and Cash Equivalents

Highly liquid investments, purchased with an original maturity of three months or less, are classified as cash equivalents. Cash equivalents at September 30, 2021 and 2020 consist of cash on deposit and cash invested in money market funds with financial institutions.

Inventory Valuation

Inventories are stated at the lower of cost (first-in, first-out) or net realizable value, net of write-downs for excess and obsolete inventory, and consist of the following:


	September 30,		September 30,
	2021		2020
Raw materials	$	3,729,692	$	3,378,246
Work-in-process		629,814		656,382
Finished goods		185,886		256,707
	$	4,545,392	$	4,291,335

Long-Lived Assets

The Company assesses the impairment of long-lived assets in accordance with Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) Topic 360-10, “Property, Plant and Equipment.” This statement requires that long-lived assets be reviewed for impairment whenever events or changes in circumstances indicate the carrying amount of an asset may not be recoverable. In addition, long-lived assets to be disposed of should be reported at the lower of the carrying amount or fair value less cost to sell. The Company considers historical performance and future estimated results in its evaluation of potential impairment and then compares the carrying amount of the asset to estimated future cash flows expected to result from use of the asset. If the carrying amount of the asset exceeds the estimated expected undiscounted future cash flows, the Company measures the amount of the impairment by comparing the carrying amount of the asset to its fair value. The estimation of fair value is generally measured by discounting expected future cash flows. No impairment charges were recorded in fiscal years 2021, 2020 or 2019.

Lease Recognition

On October 1, 2019, we adopted ASU 2016-02 using the required modified retrospective approach. This pronouncement requires lessees to record "right-of-use" assets and corresponding lease liabilities on the balance sheet for most leases. We adopted this pronouncement utilizing the transition practical expedient which eliminated the requirement that entities apply the new lease standard

to the comparative periods presented in the year of adoption. See Note 16, "Lease Recognition," to the consolidated financial statements for a discussion of the impact resulting from the adoption of this guidance.

Engineering Development

Total engineering development expense comprises both internally funded R&D and product development and design charges related to specific customer contracts. Engineering development expense consists primarily of payroll-related expenses of employees engaged in EDC projects, engineering related product materials and equipment, and subcontracting costs. R&D charges incurred for product design, product enhancements, and future product development are expensed as incurred. Product development and design charges related to specific customer contracts are charged to cost of sales-EDC based on the method of contract accounting (either percentage-of-completion or completed contract) applicable to such contracts.

Fair Value of Financial Instruments

The net carrying amounts of cash and cash equivalents, accounts receivable, accounts payable and short-term debt approximate their fair value because of the short-term nature of these instruments. For financial assets and liabilities measured at fair value on a recurring basis, fair value is the price the Company would receive to sell an asset or pay to transfer a liability in an orderly transaction with a market participant at the measurement date. A three-level fair value hierarchy prioritizes the inputs used to measure fair value as follows:

Level 1 — Unadjusted quoted prices that are available in active markets for the identical assets or liabilities at the measurement date.

Level 2 — Other observable inputs available at the measurement date, other than quoted prices included in Level 1, either directly or indirectly, including:

●

Quoted prices for similar assets or liabilities in active markets;

●

Quoted prices for identical or similar assets in non-active markets;

●

Inputs other than quoted prices that are observable for the asset or liability; and

●

Inputs that are derived principally from or corroborated by other observable market data.

Level 3 — Unobservable inputs that cannot be corroborated by observable market data and reflect the use of significant management judgment. These values are generally determined using pricing models for which the assumptions utilize management’s estimates of market participant assumptions.

The following table sets forth by level within the fair value hierarchy the Company’s financial assets and liabilities that were accounted for at fair value on a recurring basis as of September 30, 2021 and 2020, according to the valuation techniques the Company used to determine their fair values.


	Fair Value Measurement on September 30, 2021
	Quoted Price in		Significant Other		Significant
	Active Markets for		Observable		Unobservable
	Identical Assets		Inputs		Inputs
	(Level 1)		(Level 2)		(Level 3)
Assets
Cash and cash equivalents:
Money market funds	$	6,051,902	$	—	$	—


	Fair Value Measurement on September 30, 2020
	Quoted Price in		Significant Other		Significant
	Active Markets for		Observable		Unobservable
	Identical Assets		Inputs		Inputs
	(Level 1)		(Level 2)		(Level 3)
Assets
Cash and cash equivalents:
Money market funds	$	11,607,293	$	—	$	—

Warranty Reserves

The Company offers warranties on some products of various lengths, however the standard warranty period is twenty-four months. At the time of shipment, the Company establishes a reserve for estimated costs of warranties based on its best estimate of the amounts necessary to settle future and existing claims using historical data on products sold as of the balance sheet date. The length of the warranty period, the product’s failure rates, and the customer’s usage affect warranty cost. If actual warranty costs differ from the Company’s estimated amounts, future results of operations could be affected adversely. Warranty cost is recorded as cost of sales, and the reserve balance recorded as an accrued expense. While the Company maintains product quality programs and processes, its warranty obligation is affected by product failure rates and the related corrective costs. If actual product failure rates and/or corrective costs differ from the estimates, the Company revises the estimated warranty liability accordingly.

Treasury Stock

We account for treasury stock purchased under the cost method and include treasury stock as a component of stockholders’ equity. Treasury stock purchased with intent to retire (whether or not the retirement is actually accomplished) is charged to common stock.