Stockholders' Equity (Details)	12 Months Ended
	Jan. 31, 2019 USD ($) shares
Minimum
Number of shares awarded total | shares	50,277
Value at grant date | $	$ 697,600
Target
Number of shares awarded total | shares	75,418
Value at grant date | $	$ 1,046,400
Maximum
Number of shares awarded total | shares	100,557
Value at grant date | $	$ 1,395,200
Cap
Number of shares awarded total | shares	120,720
Value at grant date | $	$ 1,674,900
Employees | Minimum
Number of shares awarded total | shares	35,863
Value at grant date | $	$ 497,600
Employees | Target
Number of shares awarded total | shares	53,796
Value at grant date | $	$ 746,400
Employees | Maximum
Number of shares awarded total | shares	71,728
Value at grant date | $	$ 995,200
Employees | Cap
Number of shares awarded total | shares	86,125
Value at grant date | $	$ 1,194,900
Non Employee Directors | Minimum
Number of shares awarded total | shares	14,414
Value at grant date | $	$ 200,000
Non Employee Directors | Target
Number of shares awarded total | shares	21,622
Value at grant date | $	$ 300,000
Non Employee Directors | Maximum
Number of shares awarded total | shares	28,829
Value at grant date | $	$ 400,000
Non Employee Directors | Cap
Number of shares awarded total | shares	34,595
Value at grant date | $	$ 480,000