Condensed Statements of Cash Flows (USD $)	9 Months Ended
Dec. 31, 2011	Dec. 31, 2010
Cash flows from operating activities:
Net loss	$ (570,308)	$ (30,241)
Adjustments to reconcile loss to net cash provided by operating activities:
Depreciation and amortization	195,216	195,623
Stock-based compensation expense related to stock options	54,507	79,204
Provision for doubtful accounts, net	(4,000)	4,500
Provision for inventory obsolescence, net		(90,940)
Change in operating assets and liabilities:
Accounts receivable	(262,758)	169,450
Inventories	(73,135)	91,870
Prepaid expenses and other assets	22,963	(45,042)
Accounts payable	442,431	(303,770)
Accrued compensation and other accrued liabilities	327,134	(46,358)
Net cash provided by operating activities	132,050	24,296
Cash flows from investing activities:
Acquisition of property and equipment	(547,517)	(174,899)
Patent costs	(19,551)	(5,995)
Net cash (used in) investing activities	(567,068)	(180,894)
Cash flows from financing activities:
Borrowings from credit facility	321,237	97,367
Net cash provided by financing activities	321,237	97,367
Net decrease in cash and cash equivalents	(113,781)	(59,231)
Cash and cash equivalents, beginning of period	120,008	113,735
Cash and cash equivalents, end of period	$ 6,227	$ 54,504

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Includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash amounts may be reported as Cash and Cash Equivalents, while legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits are not generally reported as cash and cash equivalents. Includes cash and cash equivalents associated with the entity's continuing operations. Excludes cash and cash equivalents associated with the disposal group (and discontinued operation).