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Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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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 |

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- Definition Tabular disclosure of the amounts paid in advance for capitalized costs that will be expensed with the passage of time or the occurrence of a triggering event, and will be charged against earnings within one year or the normal operating cycle, if longer; the aggregate carrying amount of current assets, not separately presented elsewhere in the balance sheet; and other deferred costs. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.13) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 13 -Subparagraph b -Article 5 + Details
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