Goodwill and Other Intangibles Narrative (Details) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Jan. 31, 2022	Jan. 31, 2021	Jan. 31, 2022	Jan. 31, 2021	Jul. 31, 2021
Finite-Lived Intangible Assets
Amortization of intangible assets	$ 138,000	$ 150,000	$ 253,000	$ 305,000
Amortization expense for remainder of current fiscal year	233,000		233,000
Indefinite-lived trademarks	$ 376,000		$ 376,000
Goodwill impairment loss					$ 0