Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Tables)

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Stockholders' Equity (Tables)
 3 Months Ended
Oct. 31, 2014
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, 		 
    2014     2013  
Stock options   $ 85     $ 47  
Restricted stock     13       56  
    $ 98     $ 103  
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, 		 
    2014     2013  
Cost of clinical laboratory services   $ 1     $ 2  
Research and development     1       1  
Selling, general and administrative     96       100  
    $ 98     $ 103  
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, 2014:

    Options     Weighted
Average
Exercise
Price 		    Weighted
Average
Remaining
Contractual
Term 		    Aggregate
Intrinsic
Value (000s) 		 
Outstanding at July 31, 2014     1,155,910     $ 5.03                  
Awarded     —     $                    
Exercised     —     $                    
Cancelled or expired     (39,900 )   $ 14.05                  
Outstanding at end of period     1,116,010     $ 4.71       3.1 years     $ 2,849  
Exercisable at end of period     361,862     $ 6.91        3.5 years     $ 523  
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, 2014 is as follows:

    Awards     Weighted
Average
Award Price 		 
Outstanding at July 31, 2014     42,502     $ 5.74  
Awarded     3,000       5.62  
Vested     (6,587 )     (1.67 )
Forfeited     (5,250 )     (3.31 )
Unvested at end of period     33,665     $ 6.90