XML 44 R31.htm IDEA: XBRL DOCUMENT v2.4.0.6
Goodwill (Tables)
12 Months Ended
Sep. 30, 2012
Goodwill, Impaired [Abstract]  
Schedule of Goodwill [Table Text Block]

The changes to goodwill during the year ended September 30, 2012 are summarized as follows:

  Contract          
  Research  Optics  Instruments  Total 
Goodwill at September 30, 2011 $4,938,625  $1,283,775  $6,299,571  $12,521,971 
Goodwill impairment on Dynasil Products  -   -   (2,284,499)  (2,284,499)
Currency translation on Hilger Crystals  -   16,688   -   16,688 
Goodwill at September 30, 2012 $4,938,625  $1,300,463  $4,015,072  $10,254,160