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SUMMARY OF SIGNIFICANT ACCOUNTING AND BUSINESS POLICIES (Details) (USD $) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2012 | Dec. 31, 2011
Risks and Uncertainties [Abstract] |  |
Threshold percentage of sales (in hundredths) | 10.00% |
Revenue Recognition [Abstract] |  |
Revenues recognized on contracts in process | $ 15,900,000 |
Minimum contract period | 1 year |
Maximum contract period | 2 years |
Unbilled costs and estimated earnings included in accounts receivable | 8,500,000 | 7,400,000
Self-insured Insurance and Medical Claims [Abstract] |  |
Workers compensation insurance reserves, per claim | 100,000 |
Medical insurance reserves, per claim | 200,000 |
Accrual for claims | $ 1,800,000 | $ 1,600,000
Buildings [Member] | Minimum [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Estimated useful life | 20 years |
Buildings [Member] | Maximum [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Estimated useful life | 39 years |
Building improvements [Member] | Minimum [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Estimated useful life | 10 years |
Building improvements [Member] | Maximum [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Estimated useful life | 20 years |
Furniture, Fixtures and Equipment [Member] | Minimum [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Estimated useful life | 3 years |
Furniture, Fixtures and Equipment [Member] | Maximum [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Estimated useful life | 20 years |
Leasehold improvements [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Estimated useful life | Shorter of estimated useful life or related lease term |

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- Definition Amount of previously reported deferred or unearned revenue that was recognized as revenue during the period. Deferred revenue is a liability related to a revenue producing activity for which revenue has not yet been recognized. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 605 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 13.A.4(a).Q1) -URI http://asc.fasb.org/extlink&oid=6600647&loc=d3e214044-122780 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 13 -Section A + Details
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