Subsequent Event	9 Months Ended
Subsequent Event	Jun. 30, 2022
Subsequent Events [Abstract]
Subsequent Event	Subsequent Event Purchase Agreement On August 9, 2022, EMCORE Corporation (“EMCORE”) entered into an Asset Purchase Agreement (the “Purchase Agreement”), by and among EMCORE, Delta Acquisition Sub, Inc., a Delaware corporation and wholly owned subsidiary of EMCORE (“EMCORE Sub”), and KVH Industries, Inc., a Delaware corporation (“Seller”), pursuant to which Seller agreed to sell the assets (the “Purchased Assets”) primarily related to its Inertial Navigation segment (the “Business”), including Seller's property interests in its Tinley Park facility, to EMCORE (the “Transaction”). The signing and closing of the Transaction occurred simultaneously. Under the terms of the Purchase Agreement, EMCORE paid approximately $55.0 million in cash for the Purchased Assets (the “Purchase Price”), subject to certain working capital adjustments. The Transaction also involved EMCORE’s assumption of specified liabilities, generally including the liabilities primarily related to the Business. At the closing, $1.0 million of the Purchase Price (the “Holdback Amount”) was held back by EMCORE as security for certain post-closing obligations of Seller. The Holdback Amount will be released over time, if at all, upon satisfaction by Seller of certain of its post-closing obligations. In connection with the Transaction, the parties entered into a transition services agreement pursuant to which Seller will provide certain migration and transition services to facilitate an orderly transaction of the operation of the Business to EMCORE in the twelve month period following consummation of the Transaction. The Purchase Agreement contains certain representations, warranties, covenants, and indemnification provisions, including for breaches of covenants and for losses resulting from Seller liabilities specifically excluded from the Transaction. In connection with its entry into the Purchase Agreement, EMCORE obtained a customary representations and warranties insurance policy as recourse for certain losses arising out of breaches of representations and warranties of Seller set forth in the Purchase Agreement. The representations and warranties insurance policy is subject to certain policy limits, exclusions, deductibles, and other terms and conditions. Seller has agreed that, for the period commencing on the date of closing until the five-year anniversary thereof, neither Seller nor any of its affiliates will, directly or indirectly, compete with the business related to the development, engineering, manufacturing, marketing, distribution or sale of navigation sensors and systems or inertial sensors and systems for defense or commercial applications (including self-driving vehicles), as operated by Seller as of immediately prior to the closing, subject to certain limitations. Seller has also agreed that, for a period of 24 months after the closing, neither Seller nor any of its affiliates will, directly or indirectly, solicit to employ or employ any employee of EMCORE or any employee transferred to EMCORE as part of the Transaction. In consideration of the recency of the completion of the purchase, we have not completed the initial accounting for the business combination and have not evaluated stand-alone acquiree revenue and earnings in the pre-acquisition period for supplemental pro-forma presentation and, accordingly have not included disclosure related to such items. New ABL Credit Agreement On August 9, 2022, EMCORE and EMCORE Space & Navigation Corporation (the “Borrowers”) entered into that certain Credit Agreement, dated as of August 9, 2022 (the “Credit Agreement”), among the Borrowers, the lenders party thereto and Wingspire Capital LLC, as administrative agent for the lenders (the “Agent”). The Credit Agreement provides for two credit facilities: (a) an asset-based revolving credit facility in an aggregate principal amount of up to $40.0 million, subject to a borrowing base consisting of eligible accounts receivable and eligible inventory (subject to certain reserves), and (b) a term loan facility in an aggregate principal amount of $6.0 million. The making of the loans under the Credit Agreement is subject to the satisfaction of certain conditions precedent, including, among other things, the execution and delivery of a pledge and security agreement, pursuant to which the obligations under the Credit Agreement will be secured on a senior secured basis (subject to permitted liens) by substantially all assets of the Borrowers and substantially all assets of any future guarantors. Although no subsidiaries of EMCORE are currently required to guarantee the Borrowers’ obligations under the Credit Agreement, EMCORE Sub may be required to become a borrower or a guarantor under the Credit Agreement under certain circumstances as determined by the Agent in its sole discretion, and domestic subsidiaries of EMCORE that are formed or acquired after the closing under the Credit Agreement will be required to become guarantors under the Credit Agreement. The proceeds of the loans made on the closing date under the Credit Agreement may be used (a) to finance the Transaction and pay fees, costs and expenses in connection therewith, (b) to pay fees, costs and expenses in connection with the financing, and (c) for general corporate purposes. Borrowings under the Credit Agreement will mature on August 8, 2025, and will bear interest, at a rate per annum equal to term SOFR plus a margin of 3.75% in the case of revolving loans and term SOFR plus a margin of 5.50% in the case of term loans. In addition, the Borrowers will be responsible for the Agent’s annual collateral monitoring fees as well as the lenders’ fees and expenses, including a closing fee of 1.0% of the aggregate principal amount of the commitments as of the closing with respect to revolving loans and 1.50% of the aggregate principal amount of the commitments as of the closing with respect to term loans. The Borrowers may also be required to pay an unused line fee of 0.50% in respect of the undrawn portion of the revolving commitments, which is generally based on average daily usage of the revolving facility during the immediately preceding month. The Credit Agreement contains representations and warranties, reporting and other affirmative covenants, and negative covenants that are generally customary for credit facilities of this type. Among others, the Credit Agreement contains various covenants that, subject to agreed upon exceptions, limit the Borrowers’ and their respective subsidiaries’ ability to incur indebtedness, grant liens, enter into sale and leaseback transactions, enter into swap agreements, make loans, acquisitions and investments, change the nature of their business, acquire or sell assets or consolidate or merge with or into other persons or entities, declare or pay dividends or make other restricted payments, enter into transactions with affiliates, enter into burdensome agreements, change fiscal year, amend organizational documents, and use proceeds to fund any activities of or business with any person that is the subject of governmental sanctions. In addition, the Credit Agreement requires that, for any period commencing upon the occurrence of an event of default or excess availability under the Credit Agreement being less than the greater of $5.0 million and 15% of the revolving commitments until such time as no event of default shall be continuing and excess availability under the Credit Agreement shall be at least the greater of $5.0 million and 15% of the revolving commitments for a period of 60 consecutive days, the Borrowers satisfy a consolidated fixed charge coverage ratio of not less than 1.10:1.00. The Credit Agreement also includes customary events of default, the occurrence of which, following any applicable grace period, would permit the lenders to, among other things, declare the principal, accrued interest and other obligations of the Borrowers under the Credit Agreement to be immediately due and payable, and exercise rights and remedies available to the lenders under the Credit Agreement or applicable law or equity. At the closing under the Credit Agreement, the Borrowers borrowed revolving loans in an aggregate principal amount of $14.3 million and term loans in an aggregate principal amount equal to the entire term loan commitment.