Consolidated Statements of Cash Flows (USD $)	3 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Cash flows from Operating Activities
NET INCOME	$ 8,299,000	$ 8,609,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	4,117,000	4,012,000
Loss on disposal of assets	5,000	1,000
Stock compensation expense	717,000	405,000
Write-off of uncollectible accounts	355,000	320,000
Deferred income tax	(278,000)	(162,000)
Changes in operating assets and liabilities
Accounts receivable	(312,000)	(1,973,000)
Customer deposits	3,137,000	(1,220,000)
Prepaid taxes and expenses	929,000	2,879,000
Other assets	110,000	174,000
Accounts and taxes payable	975,000	3,580,000
Accrued liabilities	(8,380,000)	168,000
Net cash provided by operating activities	9,674,000	16,793,000
Cash Flows from Investing Activities
Investment in private equity	(800,000)	0
Purchase of property and equipment	(4,588,000)	(5,477,000)
Net cash (used in) investing activities	(5,388,000)	(5,477,000)
Cash Flows from Financing Activities
Purchase of treasury stock	(5,725,000)	(7,308,000)
Tax effect of stock option exercises	282,000	337,000
Exercise of common stock options	425,000	867,000
Net cash (used in) financing activities	(5,018,000)	(6,104,000)
Increase (decrease) in cash and cash equivalents	(732,000)	5,212,000
Cash and cash equivalents at beginning of period	34,866,000	19,822,000
Cash and cash equivalents at end of period	34,134,000	25,034,000
Supplemental Cash Flow Information:
Income taxes paid	183,000	300,000
Purchase of software license under finance agreement	$ 1,172,000	$ 2,343,000