Condensed Consolidated Balance Sheets (Unaudited) (USD $) In Thousands, unless otherwise specified	Oct. 31, 2011	Jan. 31, 2011
Current assets:
Cash and cash equivalents	$ 15,906	$ 14,647
Restricted cash	98	0
Accounts receivable, net	27,426	17,832
Current portion of contracts receivable	2,508	3,582
Inventories, net	5,784	4,813
Prepaid income tax	0	325
Deferred tax asset	2,120	1,427
Prepaid expenses and other current assets	2,747	2,128
Total current assets	56,589	44,754
Seismic equipment lease pool and property and equipment, net	115,213	79,095
Intangible assets, net	4,924	5,358
Goodwill	4,320	4,320
Prepaid foreign income tax	3,498	3,053
Long-term portion of contracts receivable, net	0	1,355
Other assets	39	36
Total assets	184,583	137,971
Current liabilities:
Accounts payable	20,995	5,203
Current maturities - long-term debt	2,033	3,177
Income taxes payable	2,145	1,276
Deferred revenue	1,790	778
Accrued expenses and other current liabilities	5,704	5,165
Total current liabilities	32,667	15,599
Non-current income taxes payable	4,608	3,482
Deferred tax liability	146	832
Long-term debt, net of current maturities	4,221	23,343
Total liabilities	41,642	43,256
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; 13,349 and 10,872 shares issued at October 31, 2011 and January 31, 2011, respectively	133	109
Additional paid-in capital	111,059	77,419
Treasury stock, at cost (925 shares at October 31, 2011 and January 31, 2011)	(4,857)	(4,843)
Retained earnings	29,132	14,976
Accumulated other comprehensive income	7,474	7,054
Total shareholders' equity	142,941	94,715
Total liabilities and shareholders' equity	$ 184,583	$ 137,971