Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Tables)

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Stockholders' Equity (Tables)
 3 Months Ended
Oct. 31, 2013
Stockholders' Equity Note [Abstract]  
Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan [Table Text Block] The amounts of share-based compensation expense recognized in the periods presented are as follows:

    Three months ended
October 31, 		 
    2013     2012  
Stock options   $ 47       —  
Restricted stock     56     $ 142  
    $ 103     $ 142  
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block] The following table sets forth the amount of expense related to share-based payment arrangements included in specific line items in the accompanying statements of operations:

    Three months ended
October 31, 		 
    2013     2012  
Cost of clinical laboratory services   $ 2     $ 2  
Research and development     1       1  
Selling, general and administrative     100       139  
    $ 103     $ 142  
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] The following table summarizes stock option activity during the three month period ended October 31, 2013:

    Options     Weighted
Average
Exercise
Price 		    Weighted
Average
Remaining
Contractual
Term 		  Aggregate
Intrinsic
Value (000s) 		 
Outstanding at July 31, 2013     726,645     $ 10.39                
Awarded     10,000     $ 2.53                
Exercised     —     $                  
Cancelled or expired     (13,409 )   $ 12.39                
Outstanding at end of period     723,236     $ 10.24       2.4 years   $ —  
Exercisable at end of period     376,419     $ 17.04       0.7 years   $ —  
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block] A summary of the activity pursuant to the Company’s restricted stock awards for the three months ended October 31, 2013 is as follows:

    Awards     Weighted
Average
Award Price 		 
Outstanding at July 31, 2013     125,133     $ 3.45  
Awarded     1,000       2.48  
Vested     (9,492 )     (1.75 )
Forfeited     —       —  
Unvested at end of period     116,641     $ 3.58