Income Taxes (Details Textual) - USD ($)		12 Months Ended
	Dec. 22, 2017	Jan. 31, 2019	Jan. 31, 2018	Jan. 31, 2017
Income Tax Contingency [Line Items]
Unrecognized tax benefits		$ 38,000	$ 38,000	$ 29,000
Unrecognized tax benefits that would favorably impact effective tax rate		30,000
Liability for interest and penalties related to unrecognized tax benefits		6,000	5,000
Unrecognized tax benefit amount that is reasonably possible to decrease		4,000
Valuation allowance		1,756,000	925,000
Federal net operating loss carryforward		15,299,000
State net operating loss carryforward		33,429,000
Excess tax benefit amount for share based compensation		46,000	$ 200,000
TCJA, Change in tax rate, income tax expense (benefit)	$ 4,438,000
Accounting Standards Update 2016-09 [Member]
Income Tax Contingency [Line Items]
Excess tax benefit amount for share based compensation		$ 171,000