General (Details) - shares	Jul. 13, 2020	Jul. 31, 2021	Jan. 30, 2021	Jul. 12, 2020
General [Abstract]
Common stock, increase in additional shares authorized	15,000,000
Capital stock, shares authorized	10,000,000	10,000,000
Common stock, shares authorized	20,000,000	29,600,000	29,600,000	5,000,000