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Stockholders' Equity
 12 Months Ended
Dec. 31, 2012
Stockholders' Equity Attributable to Parent [Abstract]  
Stockholders' Equity Note Disclosure [Text Block]
 Stockholders' Equity

Preferred Stock

We have a total of 5.0 million authorized preferred shares with rights and preferences as designated by the Board of Directors.  As of December 31, 2012 and 2011, there were no issued or outstanding preferred shares.

Securities offering

On August 14, 2009 (as amended on February 15, 2013) we filed a universal shelf registration statement on Form S-3 with the Securities and Exchange Commission ("SEC") to register up to $150,000,000 of securities, including debt securities, common stock, preferred stock, depository shares, rights to purchase common stock and warrants to purchase any of the foregoing securities.  The SEC has declared the statement effective, and we may issue any of the registered securities from time to time in one or more offerings depending on market conditions and our financing needs.

Restricted Securities

On June 16, 2009, at our annual meeting of shareholders, our shareholders adopted the 2009 Restricted Stock/Unit Plan.  A total of 300,000 shares of Company common stock are reserved for issuance under the restricted stock plan.  During January 2012, we awarded 70,000 restricted shares of stock under the 2009 Restricted Stock Plan.  Of these restricted shares, 50,000 vest over a one-year period and the remainder vest over a three-year period, beginning on the date of grant. Compensation expense related to the restricted shares was approximately $978,000, for the year ended December 31, 2012.  As of December 31, 2012, there was a total of approximately $457,000 of unrecognized compensation expense related to the nonvested portion of these restricted shares.  This expense is expected to be recognized over the next two years .