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Accounts Receivable (Details) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2014
Jun. 30, 2013
Total accounts receivable $ 1,279 $ 5,317
U.S. Government contracts
   
Billed    1,013
Unbilled 1,169 1,976
Total accounts receivable 1,169 2,989
Commercial contracts
   
Billed 99 2,076
Unbilled 11 252
Total accounts receivable $ 110 $ 2,328