Summary of Significant Accounting Policies - Restatement for error correction (Details) - USD ($)	3 Months Ended						9 Months Ended		12 Months Ended
	Oct. 31, 2019	Jul. 31, 2019	Apr. 30, 2019	Oct. 31, 2018	Jul. 31, 2018	Apr. 30, 2018	Oct. 31, 2019	Oct. 31, 2018	Jan. 31, 2019
Impact of prior-period errors
Net income (loss)	$ (164,000)	$ (608,000)	$ 313,000	$ (678,000)	$ (1,521,000)	$ (569,000)	$ (459,000)	$ (2,768,000)
Amortization Expense							(644,000)	$ (895,000)
Restatement Adjustment | Adjustment for Capitalized Software Costs
Impact of prior-period errors
Amortization Expense	$ 214,000						$ 532,000
Capitalized Software Costs | Restatement Adjustment
Impact of prior-period errors
Amortization Expense		$ 165,000	$ 153,000						$ (532,000)