Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Apr. 30, 2020	Apr. 30, 2019
Revenues:
Sale of marine technology products	$ 3,187	$ 5,977
Equipment leasing	2,575	3,323
Sale of lease pool and other equipment	1,613	557
Total revenues	7,375	9,857
Cost of sales:
Sale of marine technology products	2,703	3,455
Equipment leasing (including lease pool depreciation of $926 and $1,446 at April 30, 2020 and 2019, respectively	1,770	2,411
Equipment sales	713	250
Total cost of sales	5,186	6,116
Gross profit	2,189	3,741
Operating expenses:
Selling, general and administrative	4,654	5,232
Research and development	410	315
Impairment of intangible assets	2,531	0
Depreciation and amortization	774	650
Total operating expenses	8,369	6,197
Operating loss	(6,180)	(2,456)
Other income (expense):
Interest expense, net	(11)	(11)
Other, net	70	107
Total other income	59	96
Loss before income taxes	(6,121)	(2,360)
Provision for income taxes	(521)	(55)
Net loss	(6,642)	(2,415)
Preferred stock dividends	(559)	(471)
Net loss attributable to common shareholders	$ (7,201)	$ (2,886)
Net loss per common share:
Basic (in usd per share)	$ (0.59)	$ (0.24)
Diluted (in usd per share)	$ (0.59)	$ (0.24)
Shares used in computing net loss per common share:
Basic (in shares)	12,172	12,119
Diluted (in shares)	12,172	12,119