Annual report pursuant to Section 13 and 15(d)

Purchase of Palmer of Texas (Textual) (Details)

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Purchase of Palmer of Texas (Textual) (Details) (USD $)
 12 Months Ended 0 Months Ended 3 Months Ended 12 Months Ended 0 Months Ended
Dec. 29, 2012
Dec. 31, 2011
Jan. 01, 2011
Aug. 21, 2012
Palmer of Texas [Member]
employees
Dec. 29, 2012
Palmer of Texas [Member]
Dec. 29, 2012
Palmer of Texas [Member]
Aug. 21, 2012
Palmer of Texas [Member]
Customer Relationships [Member]
Aug. 21, 2012
Palmer of Texas [Member]
Chief Operating Officer [Member]
Aug. 21, 2012
Palmer of Texas [Member]
Controller [Member]
Business Acquisition [Line Items]                  
Employees added during acquisition (employees)       130          
Acquisition purchase price       $ 25,575,000          
Revised acquisition purchase price       26,951,209          
Period of maintenance capital expenditures subsequent to acquisition (months)       18 months          
Contingent consideration payment, lower limit       2,500,000          
Contingent consideration payment, upper limit       10,500,000          
Contingent consideration earn-out period (years) 3 years         3 years      
Claw back period (years)       2 years          
Contingency liability       1,200,000          
Indemnification assets       1,200,000          
EBITDA threshold, lower range for earn out payment       5,825,000          
EBITDA threshold, upper range for earn out payment       6,825,000          
Earn out payment, above EBITDA upper range       3,500,000          
BITDA threshold, lower range for three year earn out payment       17,475,000          
EBITDA threshold, upper range for three year earn out payment       20,475,000          
Earn out payment, between lower and upper EBITDA three year ranges       7,500,000          
Maximum three year earn out payment       10,500,000          
Estimated earn out payments       8,500,000          
Estimated earn out payments, discounted       8,152,000          
Estimated earn out payments, discount rate       2.00%          
Current portion of contingent consideration 2,500,000 0     2,500,000 2,500,000      
Term of employment agreement (years)               3 years 1 year
Intangible assets       9,000,000          
Intangible asset depreciation period (years) 15 years           15 years    
Revenues         8,323,000 12,619,000      
Income before income taxes 6,340,912 8,750,160 6,149,823   98,000 977,000      
Acquisition costs 880,583 0 0     880,583      
Professional fees           355,000      
Bank fees           337,000      
Legal fees           93,000      
Travel costs           25,000      
Other expenses           $ 71,000