Summary of Significant Accounting Policies - Schedule of Disaggregates Gross Revenue By Significant Geographic Area (Details) (USD $) - USD ($)	3 Months Ended		9 Months Ended
	Oct. 31, 2019	Oct. 31, 2018	Oct. 31, 2019	Oct. 31, 2018
Disaggregation of revenue from contracts with customers	$ 9,267,036	$ 8,242,847	$ 24,731,305	$ 21,625,671
Northeast [Member]
Disaggregation of revenue from contracts with customers			8,266,248	6,549,036
Southeast [Member]
Disaggregation of revenue from contracts with customers			5,982,856	4,948,924
Midwest [Member]
Disaggregation of revenue from contracts with customers			3,607,441	3,667,795
West [Member]
Disaggregation of revenue from contracts with customers			4,241,811	4,012,664
Southwest [Member]
Disaggregation of revenue from contracts with customers			$ 3,078,240	$ 2,764,241