For the Three Months Ended September 30,				For the Six Months Ended September 30,
			2006		2005		2006		2005
Revenue		$	24,083	$	20,164	$	50,984	$	41,046
Operating expenses:
Cost of sales			15,561		13,518		34,147		28,350
Selling and administrative			5,833		5,161		11,789		10,333
			21,394		18,679		45,936		38,683
Income from operations			2,689		1,485		5,048		2,363
Other income (expense):
Interest income			341		254		695		410
Interest expense			(1)		(1)		(2)		(2)
			340		253		693		408
Income before income taxes			3,029		1,738		5,741		2,771
Provision for income taxes			1,098		634		2,222		1,011
Net income		$	1,931	$	1,104	$	3,519	$	1,760
Basic net income per share		$	0.18	$	0.10	$	0.33	$	0.17
Diluted net income per share		$	0.17	$	0.10	$	0.32	$	0.16
Shares used in per share calculations:
Basic			10,553		10,551		10,617		10,550
Diluted			11,102		11,061		11,129		11,080