Annual report pursuant to Section 13 and 15(d)

LEEVAC Transaction - Consideration Sources (Details)

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LEEVAC Transaction - Consideration Sources (Details) - LEEVAC - USD ($)
 12 Months Ended
Dec. 31, 2016
Jan. 01, 2016
Dec. 31, 2016
Consideration received upon acquisition of LEEVAC:      
Seller payment for prepaid contracts $ 14,824,000 $ 16,942,000 $ 14,824,000
Surety payments related to assigned contracts 7,125,000 7,125,000 7,125,000
Cash received 21,949,000 24,067,000 21,949,000
Less:      
Working capital assumed (1,086,000) 2,479,000 (1,086,000)
Due from seller 3,035,000 1,588,000 3,035,000
Working capital assumed and net cash due 1,949,000 4,067,000 1,949,000
Purchase price $ 20,000,000 $ 20,000,000  
Adjustment from working capital true-up      
Seller payment for prepaid contracts     (2,118,000)
Cash received     (2,118,000)
Working capital assumed     (3,565,000)
Due from seller     1,447,000
Working capital assumed and net cash due     $ (2,118,000)