Quarterly report pursuant to Section 13 or 15(d)

Nature of Operations, Liquidity and Cash Flows (Details)

v3.21.2
Nature of Operations, Liquidity and Cash Flows (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 6 Months Ended
Mar. 18, 2021
Jul. 31, 2021
Aug. 01, 2020
Jul. 31, 2021
Aug. 01, 2020
May 01, 2021
Jan. 30, 2021
Liquidity and Cash Flows [Abstract]              
Net loss   $ 82 $ (899) $ (1,335) $ (6,306)    
Accumulated deficit   (114,198) (115,277) (114,198) (115,277)   $ (112,863)
Net cash used in operating activities       (4,934) (7,888)    
Cash and cash equivalents   2,570 3,337 2,570 3,337 $ 1,809 1,809
Net working capital   22,500   22,500      
Borrowings   0 2,151 0 2,151   6,339
Underwritten offering of common stock (in shares) 416,600            
Share price (in dollars per share) $ 32.50            
Gross proceeds of offering $ 13,500            
Credit Facility [Member]              
Liquidity and Cash Flows [Abstract]              
Borrowings   0   0     $ 6,300
Outstanding borrowings   0 0 0 0    
Available borrowings   $ 10,100 $ 6,500 $ 10,100 $ 6,500