Stockholders' Equity (Details) $ / shares in Units, $ in Thousands				1 Months Ended		3 Months Ended	12 Months Ended
	Jun. 09, 2023	Jun. 01, 2023 shares	May 30, 2023	Oct. 31, 2021 USD ($) shares	Oct. 31, 2013 Employee $ / shares shares	Jun. 29, 2023 USD ($) shares	Mar. 31, 2023 USD ($) $ / shares shares	Mar. 31, 2022 USD ($) $ / shares shares	Mar. 31, 2021 USD ($) shares	Oct. 11, 2021 shares	Jul. 31, 2020 USD ($)	Aug. 31, 2017 shares
Stockholders’ Equity (Deficit) (Details) [Line Items]
Dividends preferred stock (in Dollars) | $							$ 100	$ 100
Net proceeds from from common stock | $								$ 12,378
Equity line purchase agreement, description				(i) $50 million of newly issued shares of Common Stock and (ii) the Exchange Cap (as defined in the Equity Line Purchase Agreement), from time to time during the 24-month period from and after the October 21, 2021. Sales of Common Stock pursuant to the Equity Line Purchase Agreement, and the timing of any sales, are solely at the option of the Company, and the Company is under no obligation to sell any securities to B. Riley under the Equity Line Purchase Agreement. As consideration for B. Riley’s commitment to purchase shares of Common Stock at the Company’s direction upon the terms and subject to the conditions set forth in the Equity Line Purchase Agreement, upon execution of the Equity Line Purchase Agreement, the Company issued 10.5 thousand shares of Common Stock to B. Riley (the “Commitment Shares”), taking into account the Reverse Stock Split. The purchase price of the shares of Common Stock that we elect to sell to B. Riley pursuant to the Equity Line Purchase Agreement will be determined by reference to the volume weighted average price of the Common Stock (“VWAP”) during the applicable purchase date, less a fixed 5% discount to such VWAP. Pursuant to the Registration Rights Agreement, the Company filed a Registration Statement on Form S-1 that was declared effective by the Securities and Exchange Commission on October 21, 2021 (File No. 333-260210) for the resale by B. Riley of up to 1.3 million shares of Common Stock (including the Commitment Shares) acquired pursuant to the Equity Line Purchase Agreement, taking into account the Reverse Stock Split. There were no sales under these agreements for the year ended March 31, 2023. As of March 31, 2023, there is still approximately $38.0 million available under the 2020 Shelf Registration Statement, and $37.6 million available under the Equity Line Purchase Agreement, to raise additional capital.
Common stock available for future issuance under purchase agreement | $							$ 38,000
Stock dividends							37,000	12,000
Treasury stock shares							66,000	66,000
Weighted average fair value of outstanding grants | $ / shares							$ 8.52	$ 32.67
Share-based payment arrangement, option, exercise price range, outstanding, weighted average exercise price (in Dollars per share) | $ / shares							$ 287	$ 287
Options forfeited							400
Granted shares							155,000
Maturity date							10 years
Subsequent Event [Member]
Stockholders’ Equity (Deficit) (Details) [Line Items]
Reverse stock split	0.05
Reverse stock split description	1:20 reverse stock split
Selling, General and Administrative Expenses [Member]
Stockholders’ Equity (Deficit) (Details) [Line Items]
Stock-based compensation | $							$ 4,500	$ 5,500
Performance Stock Units [Member]
Stockholders’ Equity (Deficit) (Details) [Line Items]
Shares granted							6,000
Shares vested							31,000
Shares issued								0
Shares remained unvested							16,000
Shares issued							24,000
Shares withheld to pay taxes							10,000
Stock Appreciation Rights (SARs) [Member]
Stockholders’ Equity (Deficit) (Details) [Line Items]
Compensation cost not yet recognized related to nonvested awards | $							$ 441
Weighted average remaining vesting period							7 months 20 days
2017 Plan [Member] | Performance Stock Units [Member]
Stockholders’ Equity (Deficit) (Details) [Line Items]
Vesting period							2 years
Equity Incentive Plan [Member]
Stockholders’ Equity (Deficit) (Details) [Line Items]
Percent voting power threshold							10.00%
Exercise price if voting threshold is met, percent							110.00%
Common Stock [Member]
Stockholders’ Equity (Deficit) (Details) [Line Items]
Common stock, shares authorized										275,000,000
Shares of common stock							582,000	455,000
Common Stock [Member] | Maximum [Member]
Stockholders’ Equity (Deficit) (Details) [Line Items]
Common stock, acquired				1,300,000
ATM Sales Agreement [Member]
Stockholders’ Equity (Deficit) (Details) [Line Items]
Aggregate offering price | $											$ 30,000
Net proceeds from from common stock | $									$ 18,600
ATM Sales Agreement [Member] | Subsequent Event [Member]
Stockholders’ Equity (Deficit) (Details) [Line Items]
Net proceeds from from common stock | $						$ 1,100
ATM Sales Agreement [Member] | Common Stock [Member]
Stockholders’ Equity (Deficit) (Details) [Line Items]
Shares of common stock							0	0	1,400,000
ATM Sales Agreement [Member] | Common Stock [Member] | Subsequent Event [Member]
Stockholders’ Equity (Deficit) (Details) [Line Items]
Shares of common stock						177,000
Equity Line Purchase Agreement [Member]
Stockholders’ Equity (Deficit) (Details) [Line Items]
Shares of common stock							0
Discounted precentage of fixed volume weighted average price of common stock				5.00%
Common stock available for future issuance under purchase agreement | $							$ 37,600
Equity Line Purchase Agreement [Member] | Common Stock [Member]
Stockholders’ Equity (Deficit) (Details) [Line Items]
Number of stock issued				10,500
Stock issued value | $				$ 50,000
Class A Common Stock [Member]
Stockholders’ Equity (Deficit) (Details) [Line Items]
Common stock, shares authorized							275,000,000	275,000,000
Number of shares award												905,000
Class A Common Stock [Member] | Subsequent Event [Member]
Stockholders’ Equity (Deficit) (Details) [Line Items]
Reverse stock split		0.05
Reverse stock split description			On May 30, 2023, a Special Meeting of Stockholders of Cineverse was held to approve an amendment to the Company's Certificate of Incorporation to effect a reverse stock split of the Company's Class A Common Stock, subject to the Board's discretion and to reduce the total number of Class A Common Stock authorized for issuance in connection with the reverse stock split. On June 1, 2023, the Company's Board of Directors authorized a 1-for-20 reverse stock split of its Class A Common Stock and all related outstanding awards. The authorized shares remained unchanged from 275 million shares. The par value of the Class A Common Stock was unchanged. As a result, each shareholder’s percentage ownership interest in the Company and proportional voting power remained unchanged. In accordance with ASC Topic 505, Equity, the Company has retroactively reflected this change within the share and per-share amounts disclosed throughout this document. Refer to the Shareholders' Equity footnote within these financial statements for additional information.Terrifier 3On June 12, 2023, the Company announced that it had acquired the North American rights to Terrifier 3. At contract signing, $1.5 million was owed and based on the success of the project, the Company's commitment can reach $5.2 million. By the terms of the agreement, these commitments are recoupable based on the revenue generated by the project.
Common stock, shares authorized		275,000,000
Class A Common Stock [Member] | Common Stock [Member]
Stockholders’ Equity (Deficit) (Details) [Line Items]
Common stock, acquired							391,000	26,000
Gaiam Americas, Inc. and Gaiam, Inc. GVE [Member]
Stockholders’ Equity (Deficit) (Details) [Line Items]
Number of employees joining company following acquisition | Employee					10
Shares under option, granted					3,000
Weighted average exercise price per share, granted (in Dollars per share) | $ / shares					$ 350
Options, outstanding shares							600
Gaiam Americas, Inc. and Gaiam, Inc. GVE [Member] | Stock option [Member]
Stockholders’ Equity (Deficit) (Details) [Line Items]
Aware expiration period					10 years
Board of Directors [Member]
Stockholders’ Equity (Deficit) (Details) [Line Items]
Shares issued							34,000	14,000
Board of Directors [Member] | Restricted Stock Awards [Member]
Stockholders’ Equity (Deficit) (Details) [Line Items]
Stock based compensation (in Dollars) | $							$ 400	$ 400