Stockholders’ Deficit and Stock-Based Compensation - Additional Information (Details)					1 Months Ended			3 Months Ended		12 Months Ended
	Mar. 31, 2025 USD ($) $ / shares shares	Dec. 27, 2024 USD ($) shares	Oct. 18, 2024 USD ($) $ / shares	Feb. 15, 2022 $ / shares shares	May 06, 2025 USD ($) shares	Mar. 31, 2025 USD ($) $ / shares shares	Nov. 30, 2023 shares	Mar. 31, 2025 USD ($) $ / shares shares	Mar. 31, 2024 USD ($) shares	Dec. 31, 2024 USD ($) $ / shares shares
Subsidiary, Sale of Stock [Line Items]
Preferred stock authorized (in shares)	10,000,000					10,000,000		10,000,000
Preferred stock par value (in dollar per share) | $ / shares	$ 0.001					$ 0.001		$ 0.001
Warrants fair value | $	$ 0					$ 0		$ 0
Restricted Stock Units (RSUs)
Subsidiary, Sale of Stock [Line Items]
Vesting period (in years)								3 years
Weighted-average period over which unamortized stock-based compensation expense will recognized (in years)								8 months 8 days
Number of shares withheld (in shares)								13,978
Unrecognized stock-based compensation related to unvested RSUs | $	800,000					800,000		$ 800,000
2022 Omnibus Plan
Subsidiary, Sale of Stock [Line Items]
Stock-based compensation recognized | $								$ 300,000	$ 500,000
2022 Omnibus Plan | Stock Options
Subsidiary, Sale of Stock [Line Items]
Vesting period (in years)								3 years
Contractual period (in years)								10 years
Unrecognized stock-based compensation related to unvested stock options | $	$ 400,000					$ 400,000		$ 400,000
Number of shares related to unvested stock options (in shares)	398,522					398,522		398,522
Weighted-average period over which unamortized stock-based compensation expense will recognized (in years)								8 months 23 days
2022 Omnibus Plan
Subsidiary, Sale of Stock [Line Items]
Number of shares reserved for issuance (in shares)	3,500,000					3,500,000		3,500,000
New Circle Principal Investments LLC
Subsidiary, Sale of Stock [Line Items]
Share purchase agreement, maximum amount | $			$ 20,000,000
Share purchase agreement, maximum issuable amount, percent			19.99%
Sale of stock, number of shares authorized (in shares)		8,500,000
Legal fees | $		$ 100,000
Share purchase agreement, termination period			36 months
Share purchase agreement, termination written notice period			5 days
Measurement Input, Discount Rate
Subsidiary, Sale of Stock [Line Items]
Measurement input	0.0194					0.0194		0.0194
Measurement Input, Expected Term
Subsidiary, Sale of Stock [Line Items]
Warrants exercisable term (in years)	5 years					5 years		5 years
Measurement Input, Price Volatility
Subsidiary, Sale of Stock [Line Items]
Measurement input	0.66					0.66		0.66
Measurement Input, Expected Dividend Rate
Subsidiary, Sale of Stock [Line Items]
Measurement input	0					0		0
Warrants to Purchase Common Stock
Subsidiary, Sale of Stock [Line Items]
Stock and warrants issued during period, shares, options exercised (in shares)	10,500						10,500
IPO
Subsidiary, Sale of Stock [Line Items]
Number of shares of common stock (in shares)				1
Number of warrants to purchase each share (in shares)				1
Warrants exercise price (in dollars per share) | $ / shares				$ 5.50
Over-Allotment Option
Subsidiary, Sale of Stock [Line Items]
Purchase option - number of additional units (in shares)				140,000
Exercise price of additional units (in dollars per share) | $ / shares				$ 6.60
Public offering price per unit sold (as percent)				120.00%
Stock and warrants issued during period, shares, options exercised (in shares)	70,000						70,000
Class A Common Stock
Subsidiary, Sale of Stock [Line Items]
Common stock, authorized (in shares)	160,000,000					160,000,000		160,000,000		160,000,000
Common stock, par value (in dollars per share) | $ / shares	$ 0.001					$ 0.001		$ 0.001		$ 0.001
Class A Common Stock | New Circle Principal Investments LLC
Subsidiary, Sale of Stock [Line Items]
Common stock, par value (in dollars per share) | $ / shares			$ 0.001
Issuance of Class A common stock, net of transaction costs (in shares)		62,762
Number of shares issued in transaction (in shares)								1,539,351		1,580,000
Consideration received on transaction | $								$ 2,000,000		$ 3,000,000
Class A Common Stock | New Circle Principal Investments LLC | Subsequent Event
Subsidiary, Sale of Stock [Line Items]
Number of shares issued in transaction (in shares)					1,020,000
Consideration received on transaction | $					$ 500,000
Class A Common Stock | Over-Allotment Option
Subsidiary, Sale of Stock [Line Items]
Warrants exercise price (in dollars per share) | $ / shares				$ 0.012
Purchase option - number of warrants (in shares)				21,000
Public offering price per warrant sold (as percent)				120.00%
Class B Common Stock
Subsidiary, Sale of Stock [Line Items]
Common stock, authorized (in shares)	20,000,000					20,000,000		20,000,000		20,000,000
Common stock, par value (in dollars per share) | $ / shares	$ 0.001					$ 0.001		$ 0.001		$ 0.001
DDH LLC
Subsidiary, Sale of Stock [Line Items]
Noneconomic voting rights (as percent)								100.00%
DDM | Class B Common Stock
Subsidiary, Sale of Stock [Line Items]
Number of shares of common stock (in shares)	10,798,000					10,798,000		10,798,000
Direct Digital Management LLC | Class A Common Stock
Subsidiary, Sale of Stock [Line Items]
Conversion of stock, shares converted (in shares)						70,000		70,000	0
Number of shares of common stock (in shares)	1					1		1