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Summary of Significant Accounting Policies (Tables)
 12 Months Ended
Dec. 31, 2013
Accounting Policies [Abstract]  
Property, Plant and Equipment [Table Text Block]
Following are the major classes of depreciable assets and their estimated useful lives:
 
Year Ended December 31,
 
2013
 
2012
Land, building and improvements
$
11,823

 
$
11,823

Office furnishings, leasehold improvements, computer equipment and computer software
22,563

 
22,419

Transportation and construction equipment
163

 
169

Property and equipment
34,549

 
34,411

Accumulated depreciation
(24,013
)
 
(23,972
)
Property and equipment, net
$
10,536

 
$
10,439

 
Estimated Useful Lives
Building and improvements
35 years
Office furnishings, leasehold improvements, computer equipment and computer software
3-7 years
Transportation and construction equipment
5-7 years
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Table Text Block]
The summary of capitalized interest for the years ended December 31, 2013, 2012 and 2011 is as follows:
 
Year Ended December 31,
(In thousands)
2013
 
2012
 
2011
Capitalized interest, beginning of period
$
15,376

 
$
18,869

 
$
20,075

Interest capitalized to inventory
13,601

 
9,975

 
9,743

Capitalized interest charged to cost of sales
(15,175
)
 
(13,468
)
 
(10,949
)
Capitalized interest, end of year
$
13,802

 
$
15,376

 
$
18,869

 
 
 
 
 
 
Interest incurred
$
29,539

 
$
26,046

 
$
24,748