Deferred Gain (Schedule of deferred gain on sale of building) (Details) - USD ($)	Jun. 30, 2023	Jun. 30, 2022
Deferred Revenue
Balance of deferred gain	$ 927,762	$ 1,078,210
Less current portion	(150,448)	(150,448)
Deferred gain, net of current portion	$ 777,314	$ 927,762

Represents the monetary amount of Deferred gain, net of current portion, as of the indicated date.

No definition available.

Name:	dynt_DeferredGainNetOfNoncurrentPortion
Namespace Prefix:	dynt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant