Consolidated Statements of Cash Flows - (Unaudited) - USD ($)	9 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Cash Flows from Operating Activities
NET INCOME	$ 48,196,000	$ 46,773,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	18,864,000	17,901,000
Gain on write down or disposal of property, capitalized software or investment	95,000	34,000
Stock compensation expense	4,027,000	3,884,000
Provision for doubtful accounts	1,073,000	146,000
Deferred income tax	(1,006,000)	(971,000)
Changes in operating assets and liabilities
Accounts receivable	(1,278,000)	(4,969,000)
Customer deposits	(13,076,000)	(13,666,000)
Prepaid taxes and expenses	2,059,000	(5,422,000)
Other assets	(298,000)	(241,000)
Accounts and taxes payable	(3,088,000)	(662,000)
Accrued liabilities	12,871,000	9,304,000
Operating lease liabilities	1,065,000	(1,716,000)
Net cash provided by operating activities	69,504,000	50,395,000
Cash Flows from Investing Activities
Purchase of property and equipment	(19,164,000)	(18,441,000)
Net cash used in investing activities	(19,164,000)	(18,441,000)
Cash Flows from Financing Activities
Purchase of treasury stock	(75,081,000)	(65,291,000)
Proceeds from exercise of common stock options	4,922,000	8,888,000
Proceeds from purchases under employee stock purchase plan	346,000	271,000
Net cash used in financing activities	(69,813,000)	(56,132,000)
Decrease in cash and cash equivalents	(19,473,000)	(24,178,000)
Cash and cash equivalents at beginning of period	97,504,000	139,716,000
Cash and cash equivalents at end of period	78,031,000	115,538,000
Supplemental Cash Flow Information:
Income taxes paid	14,981,000	17,879,000
Purchase of software license under finance agreement	$ 5,273,000	$ 0