Segment Information (Tables)

6 Months Ended

Mar. 31, 2013

Summary of Company's Segment Information

The following table summarizes the Company’s segment information (in thousands):

	Three Months Ended						Six Months Ended
	March 31, 2013			March 31, 2012			March 31, 2013			March 31, 2012
Net sales:
Seismic	$	69,758		$	48,716		$	141,842		$	86,008
Non-Seismic		6,444			7,317			11,911			13,105
Corporate		218			200			418			401
Total	$	76,420		$	56,233		$	154,171		$	99,514
Income (loss) from operations:
Seismic	$	27,842		$	17,716		$	61,803		$	31,677
Non-Seismic		892			1,326			1,357			2,319
Corporate		(3,178	)		(2,570	)		(6,056	)		(4,926	)
Total	$	25,556		$	16,472		$	57,104		$	29,070