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Note 3 - Short-Term Investments
 12 Months Ended
Dec. 31, 2011
Notes To Financial Statements  
Available-for-sale Securities [Table Text Block]
3.  SHORT-TERM INVESTMENTS

All current fixed maturity securities are classified as “available for sale” and are reported at carrying value, which approximates fair value based on the discounted value of contractual cash flows. We have determined that our investment securities are available to support current operations and, accordingly, have classified such securities as current assets without regard to contractual maturities.  Investments at December 31, 2011 and 2010 consisted of certificates of deposit.  The contractual maturities of $424,000 in certificates of deposit held as of December 31, 2011 are all due within one year.