Condensed Consolidated Balance Sheets (Unaudited) (USD $) In Thousands, unless otherwise specified	Apr. 30, 2015	Jan. 31, 2015
Current assets:
Cash and cash equivalents	$ 6,227	$ 5,175
Restricted cash		184
Accounts receivable, net	27,746	23,693
Contracts and notes receivable	3,201	3,639
Inventories, net	12,508	11,451
Prepaid income taxes	1,551	1,018
Deferred tax asset	2,265	2,427
Prepaid expenses and other current assets	3,360	6,562
Total current assets	56,858	54,149
Seismic equipment lease pool and property and equipment, net	95,769	100,087
Intangible assets, net	10,716	10,831
Goodwill	5,620	5,594
Deferred tax asset	9,326	8,922
Other assets	28	28
Total assets	178,317	179,611
Current liabilities:
Accounts payable	3,676	2,399
Current maturities - long-term debt	3,219	3,218
Deferred revenue	661	710
Accrued expenses and other current liabilities	4,151	3,673
Total current liabilities	11,707	10,000
Long-term debt, net of current maturities	17,356	23,137
Total liabilities	29,063	33,137
Shareholders' equity:
Preferred stock, $1.00 par value; 1,000 shares authorized; none issued and outstanding
Common stock, $0.01 par value; 20,000 shares authorized; 14,012 and 14,012 shares issued at April 30, 2015 and January 31, 2015, respectively	140	140
Additional paid-in capital	120,057	119,787
Treasury stock, at cost (1,928 and 1,928 shares at April 30, 2015 and January 31, 2015, respectively)	(16,851)	(16,851)
Retained earnings	51,687	51,924
Accumulated other comprehensive loss	(5,779)	(8,526)
Total shareholders' equity	149,254	146,474
Total liabilities and shareholders' equity	$ 178,317	$ 179,611