Consolidated Statements of Cash Flows - Unaudited - USD ($)	9 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Cash Flows from Operating Activities
NET INCOME	$ 35,630,000	$ 34,865,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	16,818,000	17,096,000
Loss on write down or disposal of property, capitalized software or investment	69,000	31,000
Stock compensation expense	3,566,000	3,110,000
(Recovery) provision for doubtful accounts	(1,421,000)	1,620,000
Deferred income tax	(891,000)	(777,000)
Changes in operating assets and liabilities
Accounts receivable	6,570,000	890,000
Customer deposits	(684,000)	(7,142,000)
Prepaid taxes and expenses	(1,609,000)	(1,361,000)
Other assets	(813,000)	143,000
Accounts and taxes payable	5,391,000	1,811,000
Accrued liabilities	9,625,000	17,617,000
Operating lease liabilities	(5,954,000)	0
Net cash provided by operating activities	66,297,000	67,903,000
Cash Flows from Investing Activities
Purchase of property and equipment	(27,746,000)	(10,308,000)
Net cash used in investing activities	(27,746,000)	(10,308,000)
Cash Flows from Financing Activities
Purchase of treasury stock	(47,512,000)	(22,591,000)
Exercise of common stock options	6,637,000	5,456,000
Exercise of employee stock purchase options	239,000	252,000
Net cash used in financing activities	(40,636,000)	(16,883,000)
(Decrease)/increase in cash and cash equivalents	(2,085,000)	40,712,000
Cash and cash equivalents at beginning of period	91,713,000	55,771,000
Cash and cash equivalents at end of period	89,628,000	96,483,000
Supplemental Cash Flow Information:
Income taxes paid	11,927,000	8,931,000
Purchase of software license under finance agreement	$ 3,790,000	$ 0