Quarterly report pursuant to Section 13 or 15(d)

Stock Based Awards and Per Share Information (Details Textual)

v2.4.0.6
Stock Based Awards and Per Share Information (Details Textual) (USD $)
 1 Months Ended 3 Months Ended 6 Months Ended 1 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended
Apr. 30, 2011
Sep. 30, 2010
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
May 24, 2012
Dec. 31, 2011
Dec. 31, 2011
CEO [Member]
Jun. 30, 2012
CEO [Member]
Jun. 30, 2012
Consultant [Member]
Jun. 30, 2012
Consultant [Member]
Jun. 30, 2012
2002 Stock Incentive Plan [Member]
Jun. 30, 2012
Subsequent Event [Member]
Warrant [Member]
Share-based Compensation (Additional Textual) [Abstract]                            
Common stock authorized for issuance under the 2002 Plan                         6,950,000  
Common stock issued pursuant to options exercised                         2,498,000  
Options available for future grant                         643,000  
Options outstanding     3,809,000   3,809,000     3,858,000         3,809,000  
Net impact of share based compensation expense to earnings per basic share     $ (0.01) $ (0.02) $ (0.03) $ (0.02)                
Net impact of share based compensation expense to earnings per diluted share     $ (0.01) $ (0.02) $ (0.03) $ (0.02)                
Total unrecognized compensation cost     $ 2,300,000   $ 2,300,000                  
Granted stock options - CEO         $ 2.65                  
Vesting period of stock options granted - CEO                 4 years          
Recognized stock compensation cost - CEO                   183,000        
Accelerated vesting of stock options granted - CEO                 95,833          
Grant price of stock options     $ 1.78 $ 3.80 $ 1.82 $ 3.43     $ 2.58   $ 2.55 $ 2.55    
Non-qualified stock options granted - Consultant                     65,000 65,000    
Exercise price of Comerica Warrants     2.83   2.83   2.83             2.00
Share Based Compensation (Textual) [Abstract]                            
IR Warrants to purchase common stock granted 50,000 50,000                        
Warrants to purchase common stock granted to Comerica Bank     80,000   80,000   80,000              
IR warrants issued to purchase common stock $ 0.74 $ 0.74                        
Exercise price of Comerica Warrants     2.83   2.83   2.83             2.00
IR Warrants expire Apr. 11, 2014 Sep. 20, 2013                        
Minimum closing price for second Tranche IR Warrants   $ 6.00                        
Second Tranche of IR Warrant issued and expire date Second tranche of IR Warrants were subsequently issued in April 2011 and will expire on April 11, 2014                          
Recognized expense related to the IR Warrants     -2000 114000 23000 210000                
Outstanding stock options and warrants excluded from diluted loss per share     4,637,000 4,775,000 4,637,000 4,775,000                
Special stock dividends intended for the year ended 12/31/2012         2.00%                  
Special stock dividends declared     0.50%   1.00%                  
Dividends declared, date of record     Jun. 08, 2012   Jun. 08, 2012                  
Unrecognized share based compensation cost to be recognized over weighted-average period         1 year 3 months 18 days                  
Compensation cost related to stock options     $ 340,000 $ 456,000 $ 923,000 $ 676,000