Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Oct. 31, 2018	Oct. 31, 2017
Cash flows from operating activities:
Net loss	$ (15,685)	$ (13,310)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:
Depreciation and amortization	9,184	13,219
Stock-based compensation	575	685
Provision for inventory obsolescence	140	58
Provision for doubtful accounts, net of charge offs	200	0
Gross profit from sale of lease pool equipment	(1,848)	(3,080)
Loss on sale of business	4,905	0
Deferred tax expense	(365)	(31)
Non-Current prepaid tax	472	0
Changes in:
Trade accounts and contracts receivable	(878)	5,129
Unbilled revenue	(2,435)	0
Inventories	(1,304)	79
Prepaid expenses and other current assets	(1,158)	207
Income taxes receivable and payable	0	714
Accounts payable, accrued expenses and other current liabilities	(626)	(1,244)
Deferred revenue	527	0
Foreign exchange losses net of gains	336	(252)
Net cash (used in) provided by operating activities	(7,960)	2,174
Cash flows from investing activities:
Purchases of seismic equipment held for lease	(1,424)	(321)
Acquisition of assets	(3,000)	0
Purchases of property and equipment	(696)	(276)
Sale of used lease pool equipment	4,124	6,690
Sale of business, net of cash sold	(147)	0
Net cash (used in) provided by investing activities	(1,143)	6,093
Cash flows from financing activities:
Net payments on revolving line of credit	0	(3,500)
Payments on term loan and other borrowings	0	(2,807)
Net proceeds from preferred stock offering	6,135	1,847
Preferred stock dividends	(1,245)	(630)
Net cash provided by (used in) financing activities	4,890	(5,090)
Effect of changes in foreign exchange rates on cash, cash equivalents and restricted cash	(314)	82
Net (decrease) increase in cash, cash equivalents and restricted cash	(4,527)	3,259
Cash, cash equivalents and restricted cash, beginning of period	10,146	3,511
Cash, cash equivalents and restricted cash, end of period	5,619	6,770
Supplemental cash flow information:
Interest paid	2	84
Income taxes paid	414	436
Purchases of seismic equipment held for lease in accounts payable at end of period	$ 264	$ 65