CONSOLIDATED STATEMENTS OF CASH FLOWS - UNAUDITED - USD ($)	6 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Cash Flows from Operating Activities
NET INCOME	$ 31,347,000	$ 32,915,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	12,645,000	11,845,000
Gain on write down or disposal of property, capitalized software or investment	0	(11,000)
Stock compensation expense	2,329,000	2,701,000
Provision for doubtful accounts	1,239,000	129,000
Deferred income tax	(582,000)	(675,000)
Changes in operating assets and liabilities
Accounts receivable	(3,440,000)	(4,846,000)
Customer deposits	(5,989,000)	(4,563,000)
Prepaid taxes and expenses	2,922,000	(2,464,000)
Other assets	(317,000)	(292,000)
Accounts and taxes payable	(2,676,000)	450,000
Accrued liabilities	1,543,000	302,000
Operating lease liabilities	734,000	(292,000)
Net cash provided by operating activities	39,755,000	35,199,000
Cash Flows from Investing Activities
Purchase of property and equipment	(13,396,000)	(11,617,000)
Net cash used in investing activities	(13,396,000)	(11,617,000)
Cash Flows from Financing Activities
Purchase of treasury stock	(52,286,000)	(39,755,000)
Exercise of common stock options	3,702,000	7,261,000
Proceeds from employee stock purchase plan	346,000	271,000
Net cash used in financing activities	(48,238,000)	(32,223,000)
Decrease in cash and cash equivalents	(21,879,000)	(8,641,000)
Cash and cash equivalents at beginning of period	97,504,000	139,716,000
Cash and cash equivalents at end of period	75,625,000	131,075,000
Supplemental Cash Flow Information:
Income taxes paid	10,968,000	12,534,000
Purchase of software license under finance agreement	$ 5,273,000	$ 0