Blocker provision in the purchase agreement whereby no purchaser may be issued shares of our common stock if the purchaser would own over this percentage of our outstanding common stock and, to the extent a purchaser in this offering would own over this percentage of the Company's outstanding common stock, that purchaser will receive fully-paid warrants (in contrast to the coverage warrants that will be issued in this transaction, as described above) in lieu of the shares that would place such holder's ownership over this percentage.

No definition available.

Shareholders' Equity - Private Placement Securities Purchase Agreement and Registered Direct Offering (Details) - USD ($) $ / shares in Units, $ in Thousands							3 Months Ended	6 Months Ended	12 Months Ended
	Jun. 09, 2021	Feb. 18, 2021	Aug. 28, 2020	Apr. 17, 2020	Apr. 14, 2020	May 02, 2019	Oct. 31, 2020	Aug. 01, 2020	Jan. 29, 2022	Jan. 30, 2021	Feb. 01, 2020
Securities Purchase Agreements [Line Items]
Common stock issued, Shares	4,830,918	3,289,000	2,760,000		1,836,314
Price per share of common stock	$ 9.00	$ 7.00	$ 6.25
Warrants outstanding									1,334,188
Warrant exercise price per share										$ 0.001
Gross proceeds from private placement securities issuance				$ 1,500	$ 4,000			$ 2,500
Securities issuance costs								$ 190
Proceeds from issuance of common stock and warrants	$ 39,955	$ 21,224	$ 15,833						$ 61,877	$ 20,043	$ 6,000
Blocker Provision, Maximum Ownership Percentage of Outstanding Common Stock					19.999%
Exercise of warrants, Shares							114,698
Over-Allotment Option [Member]
Securities Purchase Agreements [Line Items]
Common stock issued, Shares		429,000	360,000
Warrants Granted July 11, 2020 [Member]
Securities Purchase Agreements [Line Items]
Warrants outstanding									244,798
Warrant exercise price per share									$ 2.66
Expiration date of warrants									Apr. 14, 2025
Warrants Granted May 2, 2019 [Member]
Securities Purchase Agreements [Line Items]
Common stock issued, Shares						800,000
Price per share of common stock						$ 7.50
Warrants outstanding									349,998
Warrants issued						350,000
Warrant exercise price per share						$ 15.00			$ 15.00
Warrant exercise period						5 years
Expiration date of warrants						May 02, 2024			May 02, 2024
Standstill Provision Duration of Agreement						2 years
Vendor Exclusivity Agreement, Duration of Contract						5 years
Gross proceeds from private placement securities issuance						$ 6,000
Securities issuance costs						175
Market value of warrants on the grant date						$ 193
Warrants Granted April Through July2020 Excluding Fully Paid Warrants [Member]
Securities Purchase Agreements [Line Items]
Warrants outstanding					979,190
Warrant exercise price per share					$ 2.66
Expiration date of warrants					Apr. 14, 2025
Warrants Granted July2020 Fully Paid [Member]
Securities Purchase Agreements [Line Items]
Warrant exercise price per share					$ 0.001
Exercise of warrants, Shares					114,698