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Contracts
 12 Months Ended
Dec. 31, 2016
Contractors [Abstract]  
Contracts
Contracts
 
The following is a summary of contracts in progress (in thousands):
 
 
December 31,
 
 
2016
 
2015
Costs Incurred on Uncompleted Contracts
 
$
274

 
$
1,089

Estimated Earnings on Uncompleted Contracts
 
83

 
306

Earned Revenues
 
357

 
1,395

Less: Billings to Date
 
(378
)
 
(1,404
)
Net Billings in Excess of Costs and Estimated Earnings on Uncompleted Contracts
 
$
(21
)
 
$
(9
)

Included in the accompanying balance sheets under the following captions as of December 31 (in thousands):
 
 
2016
 
2015
Costs and Estimated Earnings in Excess of Billings on Uncompleted Contracts
 
$
—

 
$
42

Billings in Excess of Costs and Estimated Earnings on Uncompleted Contracts
 
21

 
51

Net Billings in Excess of Costs and Estimated Earnings on Uncompleted Contracts
 
$
(21
)
 
$
(9
)