Stockholders’ Equity (Details)	12 Months Ended
	Jan. 31, 2018 USD ($) shares
Minimum
Number of shares awarded total | shares	56,475
Value at grant date | $	$ 783,600
Target
Number of shares awarded total | shares	84,717
Value at grant date | $	$ 1,175,400
Maximum
Number of shares awarded total | shares	112,955
Value at grant date | $	$ 1,567,200
Cap
Number of shares awarded total | shares	135,596
Value at grant date | $	$ 1,881,300
Employees | Minimum
Number of shares awarded total | shares	42,061
Value at grant date | $	$ 583,600
Employees | Target
Number of shares awarded total | shares	63,095
Value at grant date | $	$ 875,400
Employees | Maximum
Number of shares awarded total | shares	84,126
Value at grant date | $	$ 1,167,200
Employees | Cap
Number of shares awarded total | shares	101,001
Value at grant date | $	$ 1,401,300
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