Statements of Cash Flows (Unaudited) - USD ($)	3 Months Ended
	Jun. 30, 2015		Jun. 30, 2014
OPERATING ACTIVITIES
Net income	$ 3,803,226		$ 4,037,110
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	206,751		$ 230,915
Excess tax benefits	(318,521)
Deferred income taxes	311,876		$ 56,573
Changes in operating assets and liabilities:
Accounts receivable	(75,764)		(1,459,679)
Inventories	571,891		(85,423)
Prepaid expenses and other assets	(271,633)		(149,273)
Accounts payable and accrued expenses	944,896		1,853,045
Net cash provided by operating activities	5,172,722		4,483,268
INVESTING ACTIVITIES
Purchases of fixed assets	(23,057)		(27,710)
Purchases of marketable securities	136,978		(6,404,809)
Proceeds from maturities and sales of marketable securities	2,400,000		4,000,000
Net cash provided by (used in) investing activities	2,513,921		$ (2,432,519)
Proceeds from sale of common stock	262,749
Excess tax benefits	318,521
Repurchase of common stock	(556,787)
Payment of dividends to shareholders	(4,857,953)
Net cash used in financing activities	(4,833,470)
Increase in cash and cash equivalents	2,853,173		$ 2,050,749
Cash and cash equivalents at beginning of period	9,437,262	[1]	1,262,300
Cash and cash equivalents at end of period	$ 12,290,435		$ 3,313,049
Cash paid during the quarter for income taxes

[1] The March 31, 2015 Balance Sheet is derived from the audited financial statements contained in our Annual Report on Form 10-K for the fiscal year ended March 31,2015.