Annual report pursuant to Section 13 and 15(d)

Long-term Debt (Details Narrative)

v3.8.0.1
Long-term Debt (Details Narrative) - USD ($)
 1 Months Ended 12 Months Ended
Aug. 02, 2016
Oct. 31, 2011
May 31, 2017
Dec. 31, 2017
Dec. 31, 2016
Aug. 02, 2013
Letters of credit outstanding, amount       $ 2,675,000    
Debt issuance costs       115,000 $ 151,000  
Long-term Debt [Member]            
Debt issuance costs       115,000    
Term Loan [Member]            
Long-term debt [1],[2],[3]       3,847,000 $ 5,030,000  
PNC Bank [Member] | Term Loan [Member]            
Number of years used to determine monthly payment on term loan   7 years        
Revised Loan Agreement [Member] | PNC Bank [Member]            
Debt instrument, termination notice   90 days        
Revised Loan Agreement [Member] | PNC Bank [Member] | On or Before March 23, 2017 [Member]            
Debt instrument percentage of total financing to be paid upon early retirement of debt obligations   1.00%        
Revised Loan Agreement [Member] | PNC Bank [Member] | After March 23, 2017 But Prior to or on March 23, 2018 [Member]            
Debt instrument percentage of total financing to be paid upon early retirement of debt obligations   0.50%        
Revised Loan Agreement [Member] | PNC Bank [Member] | After March 23, 2018 But Prior to or on March 23, 2019 [Member]            
Debt instrument percentage of total financing to be paid upon early retirement of debt obligations   0.25%        
Revised Loan Agreement [Member] | PNC Bank [Member] | After March 23, 2019 [Member]            
Debt instrument percentage of total financing to be paid upon early retirement of debt obligations   0.00%        
Revised Loan Agreement [Member] | PNC Bank [Member] | Term Loan [Member]            
Long-term debt   $ 6,100,000        
Debt instrument, periodic payment, principal   $ 101,600        
Revised Loan Agreement [Member] | PNC Bank [Member] | Term Loan [Member] | Prime Rate [Member]            
Debt instrument, basis spread on variable rate   2.50%        
Revised Loan Agreement [Member] | PNC Bank [Member] | Term Loan [Member] | London Interbank Offered Rate (LIBOR) [Member]            
Debt instrument, basis spread on variable rate   3.50%        
Amendment to the Revised Loan Agreement [Member] | PNC Bank [Member]            
Indefinite reduction of borrowing availability       2,000,000    
Line of credit facility reduction, additional reduction       750,000    
Finite risk funds in connection with cancellation     $ 5,941,000      
Loss on extinguishment of debt       68,000    
Debt financing fees       122,000    
Promissory Note [Member] | Robert Ferguson and William Lampson [Member]            
Debt face amount           $ 3,000,000
Warrants to purchase of common stock shares           35,000
Warrants exercise price per share           $ 2.23
Proceeds from warrants $ 156,000          
Number of common stock shares issued for consideration 45,000          
Revolving Credit Facility [Member] | PNC Bank [Member]            
Line of credit facility, remaining borrowing capacity       3,687,000    
Line of credit facility reduction       2,000,000    
Letters of credit outstanding, amount       $ 2,675,000    
Revolving Credit Facility [Member] | Revised Loan Agreement [Member] | PNC Bank [Member]            
Debt maturity date   Mar. 24, 2021        
Line of credit facility, maximum borrowing capacity   $ 12,000,000        
Revolving Credit Facility [Member] | Revised Loan Agreement [Member] | PNC Bank [Member] | Prime Rate [Member]            
Debt instrument, basis spread on variable rate   2.00%        
Revolving Credit Facility [Member] | Revised Loan Agreement [Member] | PNC Bank [Member] | London Interbank Offered Rate (LIBOR) [Member]            
Debt instrument, basis spread on variable rate   3.00%        
[1] Net of debt issuance costs of ($115,000) and ($151,000) at December 31, 2017 and December 31, 2016, respectively.
[2] Our revolving credit facility is collateralized by our accounts receivable and our term loan is collateralized by our property, plant, and equipment.
[3] See below “Revolving Credit and Term Loan Agreement” for monthly payment interest options. Prior to April 1, 2016, the monthly installment payment under the term loan was approximately $190,000.