Note 4 - Marketable Securities

6 Months Ended

Sep. 30, 2014

Investments, Debt and Equity Securities [Abstract]

Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]

4. Investment Securities Available For Sale

Investment securities available for sale at September 30, 2014 consisted of investments in equity securities of publicly traded companies with a fair market value of $4,848,000, an amortized cost basis of $4,989,000, gross unrealized gains aggregating $17,000 and gross unrealized losses aggregating $158,000. Securities in a loss position at September 30, 2014 had a fair market value of $4,543,000 and had been in a continuous loss position for less than twelve months. The Company realized gains of $8,410 from the sale of securities for six months ended September 30, 2014 and $0 for six months ended September 30, 2013. Investment securities available for sale at March 31, 2014 consisted of investments in publicly traded companies with a fair market value of $1,460,000, an amortized cost basis of $1,471,000, gross unrealized gains aggregating $16,000 and gross unrealized losses aggregating $27,000. The investment securities available for sale held by the Company as of September 30, 2014 and March 31, 2014 are classified as available for sale securities. All securities are priced using publicly quoted market prices and are considered Level 1 fair value measurements.