Annual report pursuant to Section 13 and 15(d)

Property, plant, and equipment (Tables)

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Property, plant, and equipment (Tables)
 12 Months Ended
Jul. 31, 2014
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment [Table Text Block] At July 31, 2014 and 2013 property, plant, and equipment consist of:

    2014     2013  
Building and building improvements   $ 4,834     $ 4,751  
Machinery and equipment (includes asset under capital lease - see Note 9)     7,125       6,922  
Office furniture and computer equipment     16,834       16,390  
Leasehold improvements     4,835       4,759  
      33,628       32,822  
Accumulated depreciation and amortization     (26,610 )     (24,917 )
      7,018       7,905  
Land and land improvements     712       712  
    $ 7,730     $ 8,617