Nature of Operations and Liquidity (Details) $ in Millions		1 Months Ended				3 Months Ended
	Apr. 10, 2020 shares	Mar. 17, 2021 USD ($) shares	Apr. 15, 2020 USD ($)	Feb. 14, 2020 shares	Dec. 27, 2019 shares	Jun. 30, 2021 USD ($) shares	Jul. 09, 2021 USD ($)	Apr. 30, 2021 USD ($)
Nature of Operations and Liquidity [Abstract]
Number of movie theatres						6,200
Accumulated deficit						$ (469.0)
Working capital						9.5
Net cash used in operating activities						3.6
Aggregate principal amount								$ 7.8
Agreements included the sale in tranches (in Shares) | shares		2,369
cash consideration		$ 10.8
Recognized revenue						5.6
Maturity description					As previously announced, on December 27, 2019, the Company entered into, and on February 14, 2020 amended, (see Note 2 - Summary of Significant Accounting Policies), a stock purchase agreement (as so amended, the “Stock Purchase Agreement”) with BeiTai Investment LP (“BeiTai”), a related party for accounting purposes of Cinedigm and Aim Right Ventures Limited (“Aim Right”), two shareholders of Starrise Media Holdings Limited, a leading Chinese entertainment company (“Starrise”), to buy from them an aggregate of 410,901,000 outstanding Starrise ordinary shares (the “Share Acquisition”).
Aggregate of outstanding starrise ordinary shares (in Shares) | shares					410,901,000
Number of shares acquired (in Shares) | shares				162,162,162
Starrise shares received amount						25.0
Starrise shares issued amount						$ 11.2
Converted aggregate description	On April 10, 2020, the Company entered into another stock purchase agreement (the “April Stock Purchase Agreement”) with five (5) shareholders of Starrise-Bison Global Investment SPC - Bison Global No. 1 SP, Huatai Investment LP, Antai Investment LP, Mingtai Investment LP and Shangtai Asset Management LP, all of which are related parties to the Company to buy an aggregate of 223,380,000 outstanding Starrise ordinary shares from them and for the Company to issue to them an aggregate of 29,855,081 shares of its Class A common stock as consideration therefor (the “April Share Acquisition”).
Common stock, capital shares reserved for future issuance (in Shares) | shares	29,855,081
Stock purchase agreement, description						Starrise’s ordinary shares (HK 1616) are listed on the main board of the Stock Exchange of Hong Kong Limited. Based on the closing price of HKD 0.13 per share on August 26, 2021, calculated at an exchange rate of 7.8 Hong Kong Dollars to 1 US dollar, the market value of Cinedigm’s ownership in Starrise ordinary shares was approximately $6.1 million.
Proceeds from PPP loan			$ 2.2
Interest rate			1.00%
Borrowings [Member]
Nature of Operations and Liquidity [Abstract]
Aggregate principal amount								$ 7.8
Borrowings [Member] | Subsequent Event [Member]
Nature of Operations and Liquidity [Abstract]
Aggregate principal amount							$ 7.8
BeiTai [Member]
Nature of Operations and Liquidity [Abstract]
Number of shares issued for acquisition (in Shares) | shares				21,646,604
Bison Note Payable [Member]
Nature of Operations and Liquidity [Abstract]
Aggregate of outstanding starrise ordinary shares (in Shares) | shares	223,380,000
Class A Common Stock [Member]
Nature of Operations and Liquidity [Abstract]
Issuance of common stock and warrants in connection with debt instruments (in Shares) | shares						2,200,000