Condensed Consolidated Statements of Stockholders' Equity - USD ($)	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Treasury Stock
Increase (Decrease) in Temporary Equity [Roll Forward]
Issuance of convertible preferred stock (in shares)	100,000
Issuance of convertible preferred stock	$ 100,000,000
Convertible preferred stock issuance costs	(4,007,000)
Establishment of initial convertible preferred stock purchase option liability	(1,005,000)
Adjustment to reflect redemption value of convertible preferred stock (including accrued dividends)	$ 6,879,000
Ending Balance (in shares) at Jan. 31, 2022	100,000
Ending Balance at Jan. 31, 2022	$ 101,867,000
Beginning balance (in shares) at Jul. 31, 2021		41,281,812
Beginning balance (in shares) at Jul. 31, 2021					15,033,317
Beginning balance at Jul. 31, 2021	500,719,000	$ 4,128,000	$ 605,439,000	$ 333,001,000	$ (441,849,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Equity-classified stock award compensation	2,904,000		2,904,000
CEO transition costs related to equity-classified stock-based awards (See Note 1)	7,388,000		7,388,000
Issuance of employee stock purchase plan shares (in shares)		21,676
Issuance of employee stock purchase plan shares	454,000	$ 2,000	452,000
Issuance of restricted stock (in shares)		132,854
Issuance of restricted stock, net of forfeiture	0	$ 13,000	(13,000)
Net settlement of stock-based awards (in shares)		116,902
Net settlement of stock-based awards	(3,378,000)	$ 12,000	(3,390,000)
Adjustment to reflect redemption value of convertible preferred stock (including accrued dividends)	(6,879,000)			(6,879,000)
Cash dividends declared, net	(5,269,000)			(5,269,000)
Accrual of dividend equivalents, net of reversal	(217,000)			(217,000)
Net loss	(27,858,000)			(27,858,000)
Ending balance (in shares) at Jan. 31, 2022		41,553,244
Ending balance (in shares) at Jan. 31, 2022					15,033,317
Ending balance at Jan. 31, 2022	$ 467,864,000	$ 4,155,000	612,780,000	292,778,000	$ (441,849,000)
Beginning Balance (in shares) at Oct. 31, 2021	100,000
Beginning Balance at Oct. 31, 2021	$ 100,235,000
Increase (Decrease) in Temporary Equity [Roll Forward]
Convertible preferred stock issuance costs	0
Establishment of initial convertible preferred stock purchase option liability	0
Adjustment to reflect redemption value of convertible preferred stock (including accrued dividends)	$ 1,632,000
Ending Balance (in shares) at Jan. 31, 2022	100,000
Ending Balance at Jan. 31, 2022	$ 101,867,000
Beginning balance (in shares) at Oct. 31, 2021		41,380,241
Beginning balance (in shares) at Oct. 31, 2021					15,033,317
Beginning balance at Oct. 31, 2021	485,794,000	$ 4,138,000	604,452,000	319,053,000	$ (441,849,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Equity-classified stock award compensation	1,983,000		1,983,000
CEO transition costs related to equity-classified stock-based awards (See Note 1)	7,388,000		7,388,000
Issuance of employee stock purchase plan shares (in shares)		11,136
Issuance of employee stock purchase plan shares	225,000	$ 1,000	224,000
Issuance of restricted stock (in shares)		119,426
Issuance of restricted stock, net of forfeiture	0	$ 12,000	(12,000)
Net settlement of stock-based awards (in shares)		42,441
Net settlement of stock-based awards	(1,251,000)	$ 4,000	(1,255,000)
Adjustment to reflect redemption value of convertible preferred stock (including accrued dividends)	(1,632,000)			(1,632,000)
Cash dividends declared, net	(2,640,000)			(2,640,000)
Accrual of dividend equivalents, net of reversal	(129,000)			(129,000)
Net loss	(21,874,000)			(21,874,000)
Ending balance (in shares) at Jan. 31, 2022		41,553,244
Ending balance (in shares) at Jan. 31, 2022					15,033,317
Ending balance at Jan. 31, 2022	$ 467,864,000	$ 4,155,000	612,780,000	292,778,000	$ (441,849,000)
Beginning Balance (in shares) at Jul. 31, 2022	100,000
Beginning Balance at Jul. 31, 2022	$ 105,204,000
Increase (Decrease) in Temporary Equity [Roll Forward]
Convertible preferred stock issuance costs	0
Establishment of initial convertible preferred stock purchase option liability	0
Adjustment to reflect redemption value of convertible preferred stock (including accrued dividends)	$ 3,447,000
Ending Balance (in shares) at Jan. 31, 2023	100,000
Ending Balance at Jan. 31, 2023	$ 108,651,000
Beginning balance (in shares) at Jul. 31, 2022	42,672,827	42,672,827
Beginning balance (in shares) at Jul. 31, 2022					15,033,317
Beginning balance at Jul. 31, 2022	$ 466,585,000	$ 4,267,000	625,484,000	278,683,000	$ (441,849,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Equity-classified stock award compensation	2,172,000		2,172,000
CEO transition costs related to equity-classified stock-based awards (See Note 1)	3,764,000		3,764,000
Issuance of employee stock purchase plan shares (in shares)		29,460
Issuance of employee stock purchase plan shares	207,000	$ 3,000	204,000
Issuance of restricted stock (in shares)		93,091
Issuance of restricted stock, net of forfeiture	0	$ 9,000	(9,000)
Net settlement of stock-based awards (in shares)		105,493
Net settlement of stock-based awards	(1,371,000)	$ 11,000	(1,382,000)
Adjustment to reflect redemption value of convertible preferred stock (including accrued dividends)	(3,447,000)			(3,447,000)
Cash dividends declared, net	(5,549,000)			(5,549,000)
Accrual of dividend equivalents, net of reversal	(364,000)			(364,000)
Net loss	$ (15,901,000)			(15,901,000)
Ending balance (in shares) at Jan. 31, 2023	42,900,871	42,900,871
Ending balance (in shares) at Jan. 31, 2023					15,033,317
Ending balance at Jan. 31, 2023	$ 446,096,000	$ 4,290,000	630,233,000	253,422,000	$ (441,849,000)
Beginning Balance (in shares) at Oct. 31, 2022	100,000
Beginning Balance at Oct. 31, 2022	$ 106,914,000
Increase (Decrease) in Temporary Equity [Roll Forward]
Convertible preferred stock issuance costs	0
Establishment of initial convertible preferred stock purchase option liability	0
Adjustment to reflect redemption value of convertible preferred stock (including accrued dividends)	$ 1,737,000
Ending Balance (in shares) at Jan. 31, 2023	100,000
Ending Balance at Jan. 31, 2023	$ 108,651,000
Beginning balance (in shares) at Oct. 31, 2022		42,810,846
Beginning balance (in shares) at Oct. 31, 2022					15,033,317
Beginning balance at Oct. 31, 2022	454,361,000	$ 4,281,000	629,027,000	262,902,000	$ (441,849,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Equity-classified stock award compensation	1,268,000		1,268,000
Issuance of employee stock purchase plan shares (in shares)		14,443
Issuance of employee stock purchase plan shares	88,000	$ 1,000	87,000
Issuance of restricted stock (in shares)		82,373
Issuance of restricted stock, net of forfeiture	0	$ 8,000	(8,000)
Net settlement of stock-based awards (in shares)		(6,791)
Net settlement of stock-based awards	(141,000)	$ 0	(141,000)
Adjustment to reflect redemption value of convertible preferred stock (including accrued dividends)	(1,737,000)			(1,737,000)
Cash dividends declared, net	(2,775,000)			(2,775,000)
Accrual of dividend equivalents, net of reversal	(163,000)			(163,000)
Net loss	$ (4,805,000)			(4,805,000)
Ending balance (in shares) at Jan. 31, 2023	42,900,871	42,900,871
Ending balance (in shares) at Jan. 31, 2023					15,033,317
Ending balance at Jan. 31, 2023	$ 446,096,000	$ 4,290,000	$ 630,233,000	$ 253,422,000	$ (441,849,000)