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Summary of Significant Accounting Policies - Additional Information (Detail) (USD $) | 0 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 08, 2012 | Dec. 31, 2013 | Dec. 31, 2012
Summary of Significant Accounting Policies (Textual) [Abstract] |  |  |
Cash and cash equivalent maturity |  | three months or less |
Amortization expense related to intangible assets |  | $ 130,000 | $ 113,000
Tax position of the company |  | 50% or greater |
Percentage net sales recorded after customer acknowledgement that service has been completed and accepted |  | 8.00% |
Percentage net sales are recorded when the product is shipped and title passes to the customer |  | 3.00% |
Contract retentions expected to be collected within one year, Total |  | 10,000 | 424,000
Contract retentions collectible beyond one year, Total |  | 0 | 0
Non-time and material jobs of short term nature duration description |  | less than one month |
Number of Customers |  | 1 | 1
Amnor Technologies |  |  |
Summary of Significant Accounting Policies (Textual) [Abstract] |  |  |
Amortization expense related to intangible assets |  | 108,000 | 90,000
Cash payment for acquisition | 100,000 |  |
Shares payment for acquisition | 44,000 |  |
Common stock, per share | $ 4.95 |  |
Equity Interests Issuable Period | 3 years |  |
Purchase price | 322,000 |  |
Transaction cost | $ 4,000 |  |
Business acquisition equity interests issued during period, percentage of shares | 25.00% |  |
Estimated useful life | 3 years |  |
Customer one | Sales |  |  |
Concentration Risk [Line Items] |  |  |
Customer accountability percentage |  | 17.00% | 13.00%
Customer one | Accounts Receivable |  |  |
Concentration Risk [Line Items] |  |  |
Customer accountability percentage |  | 9.00% | 1.00%
Gulf Coast region |  |  |
Concentration Risk [Line Items] |  |  |
Customer accountability percentage |  | 9.00% | 17.00%

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- Definition Amount of accounts receivable from customers under long-term contracts or programs associated with unapproved change orders or other similar items subject to uncertainty concerning their determination or ultimate realization which is expected to be collected after one year from the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 910 -SubTopic 310 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6471494&loc=d3e49324-109356 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 210.5-02.3(c)(4)) -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 3 -Subparagraph c(4) -Article 5 + Details
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