Consolidated Statements of Cash Flows - Unaudited - USD ($)	6 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Cash Flows from Operating Activities
NET INCOME	$ 20,167,000	$ 26,278,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	11,643,000	11,209,000
Loss on write down or disposal of property, capitalized software or investment	496,000	26,000
Stock compensation expense	2,233,000	2,423,000
Provision for doubtful accounts	1,498,000	841,000
Deferred income tax	(559,000)	(606,000)
Changes in operating assets and liabilities
Accounts receivable	(8,826,000)	(926,000)
Customer deposits	(3,579,000)	3,146,000
Prepaid taxes and expenses	449,000	(447,000)
Other assets	196,000	(682,000)
Accounts and taxes payable	(3,619,000)	4,389,000
Accrued liabilities	18,442,000	7,843,000
Operating lease liabilities	966,000	(7,055,000)
Net cash provided by operating activities	39,507,000	46,439,000
Cash Flows from Investing Activities
Purchase of property and equipment	(6,937,000)	(17,542,000)
Net cash used in investing activities	(6,937,000)	(17,542,000)
Cash Flows from Financing Activities
Purchase of treasury stock	(14,440,000)	(28,316,000)
Exercise of common stock options	4,472,000	5,387,000
Exercise of employee stock purchase options	257,000	239,000
Net cash used in financing activities	(9,711,000)	(22,690,000)
Increase in cash and cash equivalents	22,859,000	6,207,000
Cash and cash equivalents at beginning of period	83,223,000	91,713,000
Cash and cash equivalents at end of period	106,082,000	97,920,000
Supplemental Cash Flow Information:
Income taxes paid	6,235,000	8,157,000
Purchase of software license under finance agreement	$ 0	$ 3,790,000