Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $)	3 Months Ended
Jun. 30, 2011	Jun. 30, 2010
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 168,149	$ 298,551
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Change in accounts receivable and inventory reserves	15,333	19,861
Depreciation and amortization	53,916	96,715
Change in cash surrender value of life insurance	(17,001)	(17,001)
Deferred income taxes		(163,000)
Warranty reserve	31,672	5,000
Compensation expense related to stock options	1,469
Change in operating assets and liabilities:
Accounts receivable	5,009,964	114,311
Notes receivable and other non-trade receivables	42,130	100,603
Inventories	(1,615,368)	(2,216,556)
Prepaid expenses and other	228,922	239,915
Accounts payable	(2,340,371)	982,533
Accrued expenses	(78,837)	(395,778)
Income taxes receivable/ payable	(519,243)	(64,811)
Total adjustments	812,586	(1,298,208)
Net cash provided by (used in) operating activities	980,735	(999,657)
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from sale of investments	51,035
Purchase of investments		(9,940)
Capital expenditures	(395,407)	(37,780)
Net cash used in investing activities	(344,372)	(47,720)
CASH FLOWS FROM FINANCING ACTIVITIES:
Payment of cash dividend	(611,571)	(802,337)
Payment on capital leases	(3,236)	(3,024)
Proceeds from exercise of stock options	124,350
Net cash used in financing activities	(490,457)	(805,361)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	145,906	(1,852,738)
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	6,515,067	9,777,587
CASH AND CASH EQUIVALENTS AT END OF PERIOD	6,660,973	7,924,849
Cash paid during the period for:
Interest	227	288
Income taxes	$ 614,000	$ 397,000

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Total increases or decreases in the standard and extended product warranty liability during the period.

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