CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (USD $) In Thousands, unless otherwise specified	Oct. 31, 2013	Jan. 31, 2013
Current assets:
Cash and cash equivalents	$ 24,209	$ 15,150
Restricted cash	710	801
Accounts receivable, net	25,012	23,131
Current portion of contracts and notes receivable	1,127	2,096
Inventories, net	8,490	6,188
Prepaid income taxes	1,975	5,591
Deferred tax asset	1,976	1,842
Prepaid expenses and other current assets	4,232	3,079
Total current assets	67,731	57,878
Seismic equipment lease pool and property and equipment, net	106,631	119,608
Intangible assets, net	3,447	3,989
Goodwill	4,320	4,320
Deferred tax asset	6,409	4,296
Other assets	34	316
Total assets	188,572	190,407
Current liabilities:
Accounts payable	8,469	6,921
Current maturities - long-term debt	110	145
Deferred revenue	497	539
Accrued expenses and other current liabilities	2,505	1,875
Total current liabilities	11,581	9,480
Non-current income taxes payable	376	376
Long-term debt, net of current maturities	3,140	4,238
Total liabilities	15,097	14,094
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; 13,872 and 13,763 shares issued at October 31, 2013 and January 31, 2013, respectively	139	138
Additional paid-in capital	117,599	116,506
Treasury stock, at cost (1,075 and 926 shares at October 31, 2013 and January 31, 2013, respectively)	(7,075)	(4,860)
Retained earnings	59,334	56,348
Accumulated other comprehensive income	3,478	8,181
Total shareholders' equity	173,475	176,313
Total liabilities and shareholders' equity	$ 188,572	$ 190,407