Leases (Details) - USD ($)	3 Months Ended
	Apr. 30, 2018	Apr. 30, 2017
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2018 (nine months remaining)	$ 792,000
2019	978,000
2020	515,000
2021	521,000
2022	445,000
Total	3,251,000
Rent expense	317,000	$ 313,000
Capital lease obligations	0
Facilities
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2018 (nine months remaining)	783,000
2019	967,000
2020	504,000
2021	519,000
2022	445,000
Total	3,218,000
Equipment
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2018 (nine months remaining)	9,000
2019	11,000
2020	11,000
2021	2,000
2022	0
Total	$ 33,000