Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Tables)

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Stockholders' Equity (Tables)
 3 Months Ended
Oct. 31, 2015
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,		  
    2015     2014  
Stock options   $ 104     $ 85  
Restricted stock     7       13  
    $ 111     $ 98  
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,		  
    2015     2014  
Cost of clinical laboratory services   $ 1     $ 1  
Research and development     —       1  
Selling, general and administrative     110       96  
    $ 111     $ 98  
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, 2015:

    Options     Weighted
Average
Exercise
Price		     Weighted
Average
Remaining
Contractual
Term		   Aggregate
Intrinsic
Value (000s)		  
Outstanding at July 31, 2015     1,358,104     $ 3.04              
Awarded     —     $ —              
Exercised     —     $ —              
Cancelled or expired     (6,000 )   $ 3.61              
Outstanding at end of period     1,352,104     $ 3.04     2.2 years   $ 964  
Exercisable at end of period     785,188     $ 2.87      1.8 years   $ 664  
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 unvested restricted stock awards for the three months ended October 31, 2015 is as follows:

    Awards     Weighted
Average
Award Price		  
Outstanding at July 31, 2015     21,501     $ 8.84  
Awarded     —     $ —  
Vested     (6,751 )   $ (2.10 )
Forfeited     (1,500 )   $ (2.86 )
Unvested at end of period     13,250     $ 4.04