Years Ended March 31,
				1999	2000	2001
Cash Flows from Operating Activites
	Net income			$10,403,000	$11,967,000	$13,222,000
	Adjustments to reconcile net income to net cash provided by operating activities:
		Depreciation		6,344,000	6,965,000	6,759,000
		Deferred income taxes		(588,000)	(131,000)	303,000
		Loss on write down and (gain) on disposal of property and equipment		37,000	192,000	(45,000)
		Changes in operating assets and liabilities:
			Accounts receivable	(5,929,000)	(4,312,000)	1,558,000
			Prepaid expenses and taxes	(120,000)	(1,075,000)	(534,000)
			Accounts and taxes payable	390,000	(1,158,000)	(2,304,000)
			Accrued liabilities	154,000	1,050,000	4,657,000
			Other assets	(482,000)	(779,000)	149,000
	Net cash provided by operating activities			10,209,000	12,719,000	23,765,000
Cash Flows from Investing Activities
	Purchases of property and equipment			(6,627,000)	(6,240,000)	(10,154,000)
	Net cash used in investing activities			(6,627,000)	(6,240,000)	(10,154,000)
Cash Flows from Financing Activities
	Proceeds and tax benefits from exercise of stock options			2,303,000	3,078,000	4,150,000
	Purchase of common stock			(5,263,000)	(12,966,000)	(13,947,000)
	Net cash used in financing activities			(2,960,000)	(9,888,000)	(9,797,000)
Net increase (decrease) in cash and cash equivalents				622,000	(3,409,000)	3,814,000
Cash and cash equivalents at beginning of year				8,430,000	9,052,000	5,643,000
Cash and Cash Equivalents at End of Year				$9,052,000	$5,643,000	$9,457,000