Quarterly report pursuant to Section 13 or 15(d)

Accounts Receivable -Project Revenue and Reimbursable Project Costs (Narrative) (Details)

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Accounts Receivable -Project Revenue and Reimbursable Project Costs (Narrative) (Details) - Approximations [Member] - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Dec. 31, 2014
Unbilled receivable $ 0.1   $ 0.1   $ 0.1
ENEC and FANR Projects [Member]          
Accounts Receivable $ 0.2   $ 0.2   $ 0.5
Portion of accounts receivable 66.00%   66.00%   92.00%
Major customer revenue percentage 60.00% 72.00% 52.00% 77.00%  
Lloyd Register Contract [Member]          
Major customer revenue percentage 35.00%   42.00%