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Fair Value of Financial Instruments
6 Months Ended
Jun. 30, 2011
Fair Value Disclosures [Abstract] 
Fair Value Disclosures [Text Block]
Note 7.               Fair Value of Financial Instruments

The carrying value of financial instruments including cash and cash equivalents, restricted cash, accounts receivable, accounts payable, and other accrued liabilities approximated their fair value as of June 30, 2011 and December 31, 2010 because of the relatively short maturity of these instruments.  The fair value of the Company’s investment in preferred stock is estimated to be $1,120,000 at June 30, 2011 and $1,390,000 at December 31, 2010.  The fair value of the Company’s various debt obligations, discounted at currently available interest rates was approximately $29,559,000 and $29,178,000 at June 30, 2011 and December 31, 2010, respectively.