Condensed Consolidated Balance Sheets (USD $)	Dec. 31, 2011	Mar. 31, 2011
Current Assets:
Cash and cash equivalents	$ 6,860,190	$ 6,515,067
Short-term investments		51,035
Accounts receivable, less allowance for doubtful accounts of $47,000 and $40,000	10,935,477	11,690,376
Notes and other receivables-current	40,049	78,423
Income tax receivable	358,843
Inventories	11,545,380	11,538,120
Deferred income taxes	428,000	406,000
Prepaid expenses and other	664,405	428,038
Total Current Assets	30,832,344	30,707,059
Property and Equipment, net	1,739,334	1,189,107
Deferred Income Taxes	227,000	365,000
Cash Surrender Value of Life Insurance Policies	1,642,971	1,591,968
Notes and Other Receivables-Long Term	191,505	288,031
Other Assets	107,807	79,523
Total Assets	34,740,961	34,220,688
Current Liabilities:
Accounts payable	5,287,173	6,100,012
Accrued expenses	2,359,326	1,799,791
Income taxes payable		72,000
Current portion of long-term obligations		8,271
Total Current Liabilities	7,646,499	7,980,074
Long-Term Obligations	0	0
Stockholders' Equity:
Preferred stock, $1.00 par value, 50,000 shares authorized,	0	0
Common stock, $.25 par value; 4,000,000 shares authorized, 2,446,286 and 2,431,286 shares issued and outstanding	611,571	607,821
Additional paid-in capital	6,360,567	6,238,498
Retained earnings	20,122,324	19,394,295
Total Stockholders' Equity	27,094,462	26,240,614
Total Liabilities and Stockholders’ Equity	$ 34,740,961	$ 34,220,688