Condensed Consolidated Statements of Stockholders' Deficit - USD ($) $ in Thousands | Total | Class A Common Stock | Class B Common Stock | Common StockClass A Common Stock | Common StockClass B Common Stock | Additional Paid-in Capital | Accumulated Other Comprehensive Income | Accumulated Deficit |
Stockholders (deficit) equity, beginning balance (shares) at Jan. 31, 2020 | | | | 3,263,659 | 24,985,698 | | | |
Stockholders (deficit) equity, beginning balance at Jan. 31, 2020 | $ (49,180) | | | $ 3 | $ 25 | $ 988,141 | $ 389 | $ (1,037,738) |
Increase (Decrease) in Stockholders' Equity (Deficit) [Roll Forward] | | | | | | | | |
Vesting of restricted stock units (shares) | | | | | 99,762 | | | |
Vesting of restricted stock units | 0 | | | | | | | |
Shares repurchased for tax withholdings on vesting of restricted stock (shares) | | | | | (4,578) | | | |
Shares repurchased for tax withholdings on vesting of restricted stock | (38) | | | | | (38) | | |
Issuance of common stock under employee stock purchase plan (shares) | | | | | 466,214 | | | |
Issuance of common stock under employee stock purchase plan | 3,659 | | | | $ 1 | 3,658 | | |
Exercise of stock options (shares) | | | | | 1,155 | | | |
Exercise of stock options | 11 | | | | | 11 | | |
Stock-based compensation expense | 6,499 | | | | | 6,499 | | |
Other comprehensive income (loss) | (44) | | | | | | (44) | |
Net loss | (24,895) | | | | | | | (24,895) |
Stockholders (deficit) equity, ending balance (shares) at Apr. 30, 2020 | | | | 3,263,659 | 25,548,251 | | | |
Stockholders (deficit) equity, ending balance at Apr. 30, 2020 | (63,988) | | | $ 3 | $ 26 | 998,271 | 345 | (1,062,633) |
Stockholders (deficit) equity, beginning balance (shares) at Jan. 31, 2020 | | | | 3,263,659 | 24,985,698 | | | |
Stockholders (deficit) equity, beginning balance at Jan. 31, 2020 | (49,180) | | | $ 3 | $ 25 | 988,141 | 389 | (1,037,738) |
Increase (Decrease) in Stockholders' Equity (Deficit) [Roll Forward] | | | | | | | | |
Net loss | (65,019) | $ (7,319) | $ (57,700) | | | | | |
Stockholders (deficit) equity, ending balance (shares) at Oct. 31, 2020 | | | | 3,263,659 | 26,685,608 | | | |
Stockholders (deficit) equity, ending balance at Oct. 31, 2020 | (78,516) | | | $ 3 | $ 27 | 1,023,662 | 549 | (1,102,757) |
Stockholders (deficit) equity, beginning balance (shares) at Apr. 30, 2020 | | | | 3,263,659 | 25,548,251 | | | |
Stockholders (deficit) equity, beginning balance at Apr. 30, 2020 | (63,988) | | | $ 3 | $ 26 | 998,271 | 345 | (1,062,633) |
Increase (Decrease) in Stockholders' Equity (Deficit) [Roll Forward] | | | | | | | | |
Vesting of restricted stock units (shares) | | | | | 396,680 | | | |
Vesting of restricted stock units | 0 | | | | | | | |
Shares repurchased for tax withholdings on vesting of restricted stock (shares) | | | | | (24,222) | | | |
Shares repurchased for tax withholdings on vesting of restricted stock | (485) | | | | | (485) | | |
Issuance of common stock under employee stock purchase plan (shares) | | | | | (1,301) | | | |
Issuance of common stock under employee stock purchase plan | (10) | | | | | (10) | | |
Exercise of stock options (shares) | | | | | 87,994 | | | |
Exercise of stock options | 2,048 | | | | | 2,048 | | |
Stock-based compensation expense | 7,198 | | | | | 7,198 | | |
Other comprehensive income (loss) | 272 | | | | | | 272 | |
Net loss | (17,903) | | | | | | | (17,903) |
Stockholders (deficit) equity, ending balance (shares) at Jul. 31, 2020 | | | | 3,263,659 | 26,007,402 | | | |
Stockholders (deficit) equity, ending balance at Jul. 31, 2020 | (72,868) | | | $ 3 | $ 26 | 1,007,022 | 617 | (1,080,536) |
Increase (Decrease) in Stockholders' Equity (Deficit) [Roll Forward] | | | | | | | | |
Vesting of restricted stock units (shares) | | | | | 188,766 | | | |
Vesting of restricted stock units | 0 | | | | | | | |
Shares repurchased for tax withholdings on vesting of restricted stock (shares) | | | | | (5,174) | | | |
Shares repurchased for tax withholdings on vesting of restricted stock | (194) | | | | | (194) | | |
Issuance of common stock under employee stock purchase plan (shares) | | | | | 395,387 | | | |
Issuance of common stock under employee stock purchase plan | 3,099 | | | | $ 1 | 3,098 | | |
Exercise of stock options (shares) | | | | | 30,719 | | | |
Exercise of stock options | 446 | | | | | 446 | | |
Stock-based compensation expense | 10,192 | | | | | 10,192 | | |
Exercise of common stock warrants (shares) | | | | | 68,508 | | | |
Issuance of common stock warrants | 3,098 | | | | | 3,098 | | |
Other comprehensive income (loss) | (68) | | | | | | (68) | |
Net loss | (22,221) | $ (2,456) | $ (19,765) | | | | | (22,221) |
Stockholders (deficit) equity, ending balance (shares) at Oct. 31, 2020 | | | | 3,263,659 | 26,685,608 | | | |
Stockholders (deficit) equity, ending balance at Oct. 31, 2020 | (78,516) | | | $ 3 | $ 27 | 1,023,662 | 549 | (1,102,757) |
Stockholders (deficit) equity, beginning balance (shares) at Jan. 31, 2021 | | 3,263,659 | 27,271,435 | 3,263,659 | 27,271,435 | | | |
Stockholders (deficit) equity, beginning balance at Jan. 31, 2021 | (83,459) | | | $ 3 | $ 27 | 1,038,006 | 877 | (1,122,372) |
Increase (Decrease) in Stockholders' Equity (Deficit) [Roll Forward] | | | | | | | | |
Vesting of restricted stock units (shares) | | | | | 703,571 | | | |
Vesting of restricted stock units | 1 | | | | $ 1 | | | |
Shares repurchased for tax withholdings on vesting of restricted stock (shares) | | | | | (94,435) | | | |
Shares repurchased for tax withholdings on vesting of restricted stock | (6,244) | | | | | (6,244) | | |
Issuance of common stock under employee stock purchase plan (shares) | | | | | 505,020 | | | |
Issuance of common stock under employee stock purchase plan | 4,133 | | | | $ 0 | 4,133 | | |
Exercise of stock options (shares) | | | | | 31,188 | | | |
Exercise of stock options | 654 | | | | | 654 | | |
Stock-based compensation expense | 10,074 | | | | | 10,074 | | |
Other comprehensive income (loss) | (4) | | | | | | (4) | |
Net loss | (18,104) | | | | | | | (18,104) |
Stockholders (deficit) equity, ending balance (shares) at Apr. 30, 2021 | | | | 3,263,659 | 28,416,779 | | | |
Stockholders (deficit) equity, ending balance at Apr. 30, 2021 | (92,949) | | | $ 3 | $ 28 | 1,046,623 | 873 | (1,140,476) |
Stockholders (deficit) equity, beginning balance (shares) at Jan. 31, 2021 | | 3,263,659 | 27,271,435 | 3,263,659 | 27,271,435 | | | |
Stockholders (deficit) equity, beginning balance at Jan. 31, 2021 | $ (83,459) | | | $ 3 | $ 27 | 1,038,006 | 877 | (1,122,372) |
Increase (Decrease) in Stockholders' Equity (Deficit) [Roll Forward] | | | | | | | | |
Exercise of stock options (shares) | 243,158 | | | | | | | |
Net loss | $ (68,857) | $ (7,077) | $ (61,780) | | | | | |
Stockholders (deficit) equity, ending balance (shares) at Oct. 31, 2021 | | 3,263,659 | 29,345,776 | 3,263,659 | 29,345,776 | | | |
Stockholders (deficit) equity, ending balance at Oct. 31, 2021 | (112,557) | | | $ 3 | $ 29 | 1,077,993 | 647 | (1,191,229) |
Stockholders (deficit) equity, beginning balance (shares) at Apr. 30, 2021 | | | | 3,263,659 | 28,416,779 | | | |
Stockholders (deficit) equity, beginning balance at Apr. 30, 2021 | (92,949) | | | $ 3 | $ 28 | 1,046,623 | 873 | (1,140,476) |
Increase (Decrease) in Stockholders' Equity (Deficit) [Roll Forward] | | | | | | | | |
Vesting of restricted stock units (shares) | | | | | 286,617 | | | |
Vesting of restricted stock units | 1 | | | | $ 1 | | | |
Shares repurchased for tax withholdings on vesting of restricted stock (shares) | | | | | (16,612) | | | |
Shares repurchased for tax withholdings on vesting of restricted stock | (1,334) | | | | | (1,334) | | |
Exercise of stock options (shares) | | | | | 107,804 | | | |
Exercise of stock options | 2,509 | | | | | 2,509 | | |
Stock-based compensation expense | 12,621 | | | | | 12,621 | | |
Exercise of common stock warrants (shares) | | | | | 100,000 | | | |
Other comprehensive income (loss) | (146) | | | | | | (146) | |
Net loss | (22,240) | | | | | | | (22,240) |
Stockholders (deficit) equity, ending balance (shares) at Jul. 31, 2021 | | | | 3,263,659 | 28,894,588 | | | |
Stockholders (deficit) equity, ending balance at Jul. 31, 2021 | (101,538) | | | $ 3 | $ 29 | 1,060,419 | 727 | (1,162,716) |
Increase (Decrease) in Stockholders' Equity (Deficit) [Roll Forward] | | | | | | | | |
Vesting of restricted stock units (shares) | | | | | 363,635 | | | |
Vesting of restricted stock units | 0 | | | | $ 0 | | | |
Shares repurchased for tax withholdings on vesting of restricted stock (shares) | | | | | (16,613) | | | |
Shares repurchased for tax withholdings on vesting of restricted stock | (1,280) | | | | | (1,280) | | |
Exercise of stock options (shares) | | | | | 104,166 | | | |
Exercise of stock options | 745 | | | | | 745 | | |
Stock-based compensation expense | 18,109 | | | | | 18,109 | | |
Other comprehensive income (loss) | (80) | | | | | | (80) | |
Net loss | (28,513) | $ (2,876) | $ (25,637) | | | | | (28,513) |
Stockholders (deficit) equity, ending balance (shares) at Oct. 31, 2021 | | 3,263,659 | 29,345,776 | 3,263,659 | 29,345,776 | | | |
Stockholders (deficit) equity, ending balance at Oct. 31, 2021 | $ (112,557) | | | $ 3 | $ 29 | $ 1,077,993 | $ 647 | $ (1,191,229) |