XML 55 R42.htm IDEA: XBRL DOCUMENT v3.19.1
Note 1 - Summary of Significant Accounting Policies (Details Textual) - USD ($)
$ in Thousands
1 Months Ended 12 Months Ended
Dec. 30, 2017
Dec. 29, 2018
Dec. 30, 2017
Dec. 31, 2016
Cash and Cash Equivalents, at Carrying Value, Ending Balance $ 2,851 $ 482 $ 2,851 $ 279
Accounts Receivable, Net, Current, Total 46,080 $ 52,335 46,080  
Number of Reporting Units   3    
Goodwill, Impairment Loss   $ 0 3,478  
Capitalized Computer Software, Additions   1,150 594  
Capitalized Computer Software, Net, Ending Balance 1,841 2,255 1,841  
Deferred Tax Assets, Valuation Allowance, Total $ 0 $ 0 $ 0  
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent 35.00% 21.00% 34.00%  
Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability   $ 1,000 $ 1,000  
Revenue from Contract with Customer, Including Assessed Tax   200,352 186,737  
Contract with Customer, Liability, Total $ 600 200 600  
Contract with Customer, Liability, Revenue Recognized   600    
Gross Billings   32,900 38,900  
Advertising Expense   $ 671 $ 700  
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | New York City Board of Education [Member]        
Concentration Risk, Percentage   13.00%    
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Five Largest Customers [Member]        
Concentration Risk, Percentage   40.90% 37.90%  
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Ten Largest Customers [Member]        
Concentration Risk, Percentage   54.60% 51.40%  
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Twenty Largest Customers [Member]        
Concentration Risk, Percentage   67.40% 65.20%  
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Sikorsky Aircraft [Member]        
Concentration Risk, Percentage     10.40%  
Accounts Receivable [Member] | Customer Concentration Risk [Member] | New York City Board of Education [Member]        
Concentration Risk, Percentage   16.00% 14.90%  
Accounts Receivable [Member] | Customer Concentration Risk [Member] | New York Power Authority [Member]        
Concentration Risk, Percentage   22.70% 11.90%  
Total Accounts Receivable and Transit Accounts Receivable [Member] | Customer Concentration Risk [Member] | New York Power Authority [Member]        
Concentration Risk, Percentage   23.30% 14.00%  
Service, Other [Member]        
Revenue from Contract with Customer, Including Assessed Tax   $ 1,800 $ 2,600  
Construction [Member]        
Revenue from Contract with Customer, Including Assessed Tax   23,400 26,100  
Information Technology [Member]        
Goodwill, Impairment Loss     3,478  
Revenue from Contract with Customer, Including Assessed Tax   30,611 32,668  
Engineering [Member]        
Goodwill, Impairment Loss      
Revenue from Contract with Customer, Including Assessed Tax   $ 86,078 $ 82,753  
Engineering [Member] | Total Revenue From Agreements [Member]        
Concentration Risk, Percentage   11.70% 14.00%  
Restricted Covenants [Member]        
Finite-Lived Intangible Asset, Useful Life   4 years    
Customer Relationships [Member]        
Finite-Lived Intangible Asset, Useful Life   6 years    
Furniture and Fixtures [Member]        
Property, Plant and Equipment, Useful Life   5 years    
Transit Accounts Payable [Member]        
Accounts Payable, Current, Total 4,700 $ 2,500 $ 4,700  
Liabilities, Net 1,700   1,700  
Transit Accounts Receivable [Member]        
Accounts Receivable, Gross, Current 3,000 2,600 3,000  
Accounts Receivable, Net, Current, Total   100    
CANADA        
Cash and Cash Equivalents, at Carrying Value, Ending Balance $ 52 32 52  
Revenue from Contract with Customer, Including Assessed Tax   $ 27,869 $ 30,084