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ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES: - Impairment, Advertising Expenses: (Details) - USD ($) $ in Millions	12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2017
Accounts Receivable
Unbilled amounts included in accounts receivable	$ 2.5	$ 3.1
Advertising Expense
Advertising expense	$ 8.2	$ 8.3	$ 6.2
Minimum
Internally developed software
Amortization period	4 years
Minimum \| Leasehold improvements
Property and equipment and software
Estimated useful lives	5 years
Minimum \| Data processing equipment
Property and equipment and software
Estimated useful lives	2 years
Minimum \| Office furniture and other equipment
Property and equipment and software
Estimated useful lives	3 years
Minimum \| Developed technology (Software, net)
Internally developed software
Amortization period	2 years
Maximum
Internally developed software
Amortization period	6 years
Maximum \| Leasehold improvements
Property and equipment and software
Estimated useful lives	7 years
Maximum \| Data processing equipment
Property and equipment and software
Estimated useful lives	5 years
Maximum \| Office furniture and other equipment
Property and equipment and software
Estimated useful lives	7 years
Maximum \| Developed technology (Software, net)
Internally developed software
Amortization period	5 years