6. Short-Term and Long-Term Investments

The Company accounts for its investments in accordance with ASC 320, “Investments – Debt and Equity Securities.” Investments with a maturity of greater than three months to one year are classified as short-term investments. Investments with maturities beyond one year may be classified as short-term if the Company reasonably expects the investment to be realized in cash or sold or consumed during the normal operating cycle of the business. Investments available for sale are recorded at market value using the specific identification method. Investments expected to be held to maturity or until market conditions improve are measured at amortized cost in the statement of financial position if it is the Company’s intent and ability to hold those securities long-term. Each balance sheet date, the Company evaluates its investments for possible other-than-temporary impairment which involves significant judgment. In making this judgment, management reviews factors such as the length of time and extent to which fair value has been below the cost basis, the anticipated recovery period, the financial condition of the issuer, the credit rating of the instrument and the Company’s ability and intent to hold the investment for a period of time which may be sufficient for recovery of the cost basis. Any unrealized gains and losses on securities are reported as other comprehensive income as a separate component of shareholders’ equity until realized or until a decline in fair value is determined to be other than temporary. Once a decline in fair value is determined to be other-than-temporary, an impairment charge is recorded in the income statement. If market, industry, and/or investee conditions deteriorate, future impairments may be incurred.

At March 31, 2012, the Company had $8.3 million of short-term investments in time deposits or certificates of deposit and $1.5 million in variable rate demand notes.

At March 31, 2012, the Company holds long-term investments in preferred stock investments that are not registered under the Securities Act of 1933 and may not be offered or sold in the United States absent registration or an applicable exemption from registration requirements. The Company estimated that the fair market value of these investments at March 31, 2012 was $2.2 million based on an internal valuation model, which included the use of a discounted cash flow model. The fair market analysis considered the following key inputs, (i) the underlying structure of each security; (ii) the present value of the future principal and dividend payments discounted at rates considered to reflect current market conditions; and (iii) the time horizon that the market value of each security could return to its cost and be sold. Under ASC 820, “Fair Value Measurements”, such valuation assumptions are defined as Level 3 inputs.

The following table summarizes the Company’s changes in Level 3 financial instruments that are measured at fair value on a recurring basis