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form10-k.htm
exhibit10-2.htm
exhibit10-26.htm
exhibit10-27.htm
exhibit12.htm
exhibit21.htm
exhibit23.htm
exhibit31-1.htm
exhibit31-2.htm
exhibit32-1.htm
exhibit32-2.htm
Accounts receivable (Tables)
12 Months Ended
Dec. 31, 2013
Accounts receivable [Abstract]
Accounts receivable
Accounts receivable consist of the following:
December 31,
(in thousands)
2013
2012
Billed
$
45,757
$
76,155
Unbilled
14,830
19,888
Total
$
60,587
$
96,043