CONDENSED CONSOLIDATED STATEMENTS OF CONVERTIBLE PREFERRED SHARES AND CHANGES IN STOCKHOLDERS’ EQUITY (DEFICIT) - USD ($) $ in Thousands	Total	Previously Reported	Revision of Prior Period, Adjustment	Preferred stock	Preferred stock Legacy TOI Preferred Stock	Preferred stock Previously Reported	Preferred stock Previously Reported Legacy TOI Preferred Stock	Preferred stock Revision of Prior Period, Adjustment Legacy TOI Preferred Stock	Common stock	Common stock Legacy TOI Common Stock	Common stock Previously Reported	Common stock Previously Reported Legacy TOI Common Stock	Common stock Revision of Prior Period, Adjustment	Additional paid in capital	Additional paid in capital Previously Reported	Additional paid in capital Revision of Prior Period, Adjustment	Retained Earnings/ (Accumulated Deficit)	Retained Earnings/ (Accumulated Deficit) Previously Reported
Balance at beginning (in shares) at Dec. 31, 2020				0	0	0	11,451	(11,451)	59,160,192	0	0	0	59,160,192
Balance at beginning at Dec. 31, 2020	$ 28,101	$ (52,013)	$ 80,114	$ 0	$ 0	$ 0	$ 100	$ (100)	$ 6	$ 0	$ 0	$ 0	$ 6	$ 80,402	$ 294	$ 80,108	$ (52,307)	$ (52,307)
Changes in Stockholders' Equity
Net income (loss)	(996)																(996)
Legacy TOI preferred stock issued and issuance of common stock (in shares)									6,861,637
Legacy TOI preferred stock issued and issuance of common stock	19,999								$ 1					19,998
Share-based compensation expense	42													42
Balance at ending (in shares) at Mar. 31, 2021				0	0				66,021,829	0
Balance at ending at Mar. 31, 2021	47,146			$ 0	$ 0				$ 7	$ 0				100,442			(53,303)
Balance at beginning (in shares) at Dec. 31, 2021				163,510					73,249,042
Balance at beginning at Dec. 31, 2021	104,159			$ 0					$ 7					167,386			(63,234)
Changes in Stockholders' Equity
Net income (loss)	19,286																19,286
Stock Issued During Period, Value, Restricted Stock Award, Gross	0
Issuance of common stock upon vesting of RSUs (in shares)									27,188
Share-based compensation expense	8,553													8,553
Balance at ending (in shares) at Mar. 31, 2022				163,510					73,276,230
Balance at ending at Mar. 31, 2022	$ 131,998			$ 0					$ 7					$ 175,939			$ (43,948)