Condensed Consolidated Statements of Income (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Apr. 30, 2012	Apr. 30, 2011
Revenues:
Equipment leasing	$ 21,008	$ 16,775
Lease pool equipment sales	2,332	335
Seamap equipment sales	10,544	8,349
Other equipment sales	747	1,043
Total revenues	34,631	26,502
Cost of sales:
Direct costs - equipment leasing	2,705	2,157
Direct costs - lease pool depreciation	8,394	6,090
Cost of lease pool equipment sales	1,404	97
Cost of Seamap and other equipment sales	5,242	4,233
Total cost of sales	17,745	12,577
Gross profit	16,886	13,925
Operating expenses:
General and administrative	5,319	4,648
Recovery of doubtful accounts	(428)
Depreciation and amortization	329	305
Total operating expenses	5,220	4,953
Operating income	11,666	8,972
Other income (expenses):
Interest, net	(5)	(175)
Other, net	(598)	(336)
Total other income (expenses)	(603)	(511)
Income before income taxes	11,063	8,461
Provision for income taxes	(2,607)	(2,368)
Net income	$ 8,456	$ 6,093
Net income per common share:
Basic	$ 0.67	$ 0.61
Diluted	$ 0.63	$ 0.58
Shares used in computing net income per common share:
Basic	12,626	9,923
Diluted	13,326	10,470