Leases (Details) - USD ($)	3 Months Ended		9 Months Ended
	Oct. 31, 2017	Oct. 31, 2016	Oct. 31, 2017	Oct. 31, 2016
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2017 (three months remaining)	$ 259,000		$ 259,000
2018	1,050,000		1,050,000
2019	978,000		978,000
2020	515,000		515,000
2021	521,000		521,000
Thereafter	445,000		445,000
Total	3,768,000		3,768,000
Rent expense	295,000	$ 309,000	920,000	$ 955,000
Capital lease obligations	0		0
Facilities
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2017 (three months remaining)	256,000		256,000
2018	1,039,000		1,039,000
2019	967,000		967,000
2020	504,000		504,000
2021	519,000		519,000
Thereafter	445,000		445,000
Total	3,730,000		3,730,000
Equipment
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2017 (three months remaining)	3,000		3,000
2018	11,000		11,000
2019	11,000		11,000
2020	11,000		11,000
2021	2,000		2,000
Thereafter	0		0
Total	$ 38,000		$ 38,000