Significant Accounting Policies - Capitalized Software Development Costs (Details) - USD ($)	12 Months Ended
	Jan. 31, 2019	Jan. 31, 2018
Capitalized Software Development Costs
Capitalized computer software, additions	$ 3,003,000	$ 1,836,000
Cost of systems sales	768,000	1,914,000
Cost of software as a service	379,000	186,000
Cost of audit services	13,000	13,000
Total amortization expense on internally-developed software	1,160,000	2,113,000
Research and development expense	$ 4,261,000	$ 5,352,000
Minimum
Capitalized Software Development Costs
Useful life of capitalized computer software	3 years
Maximum
Capitalized Software Development Costs
Useful life of capitalized computer software	5 years