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Note 12 - Debt (Details Textual)
2 Months Ended 9 Months Ended
Oct. 30, 2015
USD ($)
Jul. 09, 2015
USD ($)
Dec. 31, 2015
USD ($)
Oct. 04, 2015
USD ($)
Jan. 31, 2016
USD ($)
Oct. 31, 2015
USD ($)
Sep. 30, 2015
USD ($)
Sep. 29, 2015
USD ($)
Jul. 02, 2015
USD ($)
Dec. 31, 2014
USD ($)
Standby Letters of Credit [Member]                    
Letters of Credit Outstanding, Amount       $ 0           $ 755,000
Line of Credit Facility, Maximum Borrowing Capacity       5,000,000            
Proceeds from Lines of Credit       6,262,000            
Line of Credit Facility, Remaining Borrowing Capacity       $ 2,238,000            
Revolving Credit Facility [Member] | Minimum [Member]                    
Debt Instrument, Interest Rate, Stated Percentage       6.00%            
Revolving Credit Facility [Member] | Maximum [Member] | Scenario, Forecast [Member]                    
Debt Instrument, Interest Rate, Stated Percentage         10.00%          
Revolving Credit Facility [Member] | Through May Thirty First Two Thous and Fifteen [Member]                    
Line of Credit Facility Minimum Availability         $ 1,000,000          
Revolving Credit Facility [Member] | On Or Before September Thirtieth Two Thousand Fifteen [Member]                    
Line of Credit Facility Minimum Availability         $ 5,000,000          
Revolving Credit Facility [Member] | Subsequent Event [Member] | New Credit Facility [Member]                    
Line of Credit Facility, Maximum Borrowing Capacity $ 15,000,000                  
Line of Credit Facility, Fixed Charge Coverage Ratio Trigger, Borrowing Availability $ 4,000,000                  
Fixed Charge Coverage Ratio Applicable If Borrowing Availability Falls Below a Specified Level 1                  
Revolving Credit Facility [Member] | Subsequent Event [Member]                    
Line of Credit Facility, Maximum Borrowing Capacity   $ 10,000,000                
Revolving Credit Facility [Member]                    
Line of Credit Facility, Maximum Borrowing Capacity       $ 25,000,000         $ 22,500,000  
Debt Instrument Incremental Basis Point Monthly Increase       0.50%            
Line of Credit Facility Minimum Availability             $ 8,500,000 $ 10,000,000    
Line of Credit Facility, Amendment Fee             500,000   500,000  
Line of Credit Facility, Success Fee                 $ 500,000  
Line of Credit Facility, Current Borrowing Capacity       $ 8,500,000            
Scenario, Forecast [Member] | Term Loan [Member]                    
Repayments of Debt     $ 5,000,000              
Subsequent Event [Member] | Term Loan [Member]                    
Debt Instrument, Face Amount $ 12,000,000                  
Debt Prepayment, Alternative Satisfaction of Requirement, Amount of Cash to Be Deposited Into a Controlled Cash Collateral Account 5,000,000                  
Debt Prepayment, Alternative Satisfaction of Requirement, Alternative Proceeds to Be Contributed 5,000,000                  
Subsequent Event [Member]                    
Line of Credit Facility, Maximum Borrowing Capacity $ 8,500,000         $ 27,000,000        
Promissory Note [Member] | Gill Family Capital Management [Member]                    
Debt Instrument, Interest Rate, Stated Percentage                 8.00%  
Subordinated Debt                 $ 5,500,000  
Meritor Note [Member]                    
Debt Instrument, Interest Rate, Stated Percentage                 10.00%  
Debt Instrument, Face Amount                 $ 3,047,000  
Meritor Note Amendment [Member]                    
Secured Debt   412,000         $ 321,000      
Morganton [Member] | Morganton Facility [Member]                    
Proceeds from Sale of Productive Assets   3,200,000                
Disposal Group, Including Discontinued Operation, Consideration, Assets Transferred and Liabilities Assumed   $ 12,500,000