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Long-Term Debt (Details) - USD ($)
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 11, 2018
May 23, 2017
Jun. 30, 2018
Jun. 30, 2018
Dec. 31, 2017
Director [Member]          
Long-Term Debt (Details) [Line Items]          
Due to Related Parties     $ 1,000,000 $ 1,000,000  
Line of Credit [Member]          
Long-Term Debt (Details) [Line Items]          
Line of Credit Facility, Maximum Borrowing Capacity     4,000,000 4,000,000  
Revolving Credit Facility [Member]          
Long-Term Debt (Details) [Line Items]          
Line of Credit Facility, Maximum Borrowing Capacity     $ 3,000,000 $ 3,000,000  
Debt Instrument, Basis Spread on Variable Rate       6.00% 4.00%
Debt Instrument, Interest Rate, Effective Percentage     11.00% 11.00% 8.50%
Debt Instrument, Description of Variable Rate Basis       prime plus 6.0% prime plus 4.0%
Term Loan [Member]          
Long-Term Debt (Details) [Line Items]          
Line of Credit Facility, Maximum Borrowing Capacity     $ 1,000,000 $ 1,000,000  
Debt Instrument, Basis Spread on Variable Rate       6.00%  
Debt Instrument, Interest Rate, Effective Percentage     11.00% 11.00% 11.00%
Debt Instrument, Description of Variable Rate Basis       prime plus 6.0%  
SMI Note [Member]          
Long-Term Debt (Details) [Line Items]          
Debt Instrument, Face Amount $ 330,000        
Debt Instrument, Interest Rate, Stated Percentage 10.00%        
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in Shares) 82,500   82,500 82,500  
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per share) $ 0.01   $ 0.01 $ 0.01  
Proceeds from Issuance of Warrants $ 95,000     $ 95,000  
Amortization of Debt Discount (Premium)       $ 4,000  
SMII Note [Member]          
Long-Term Debt (Details) [Line Items]          
Debt Instrument, Face Amount $ 670,000        
Debt Instrument, Interest Rate, Stated Percentage 10.00%        
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in Shares) 167,500   167,500 167,500  
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per share) $ 0.01   $ 0.01 $ 0.01  
Proceeds from Issuance of Warrants $ 193,000     $ 193,000  
Amortization of Debt Discount (Premium)       $ 8,000  
8¼% Limited Convertible Senior Subordinated Notes Due 2012 [Member]          
Long-Term Debt (Details) [Line Items]          
Debt Instrument, Maturity Date       Mar. 01, 2012  
Notes Payable     $ 387,000 $ 387,000  
Interest Payable, Current     282,000 282,000 $ 266,000
9½% Subordinated Debentures Due 2012 [Member]          
Long-Term Debt (Details) [Line Items]          
Notes Payable     220,000 220,000  
Interest Payable, Current     $ 179,000 $ 179,000 $ 169,000
Debentures, Matured Date       Dec. 01, 2012  
Forgivable Loan [Member]          
Long-Term Debt (Details) [Line Items]          
Debt Instrument, Basis Spread on Variable Rate   2.00%      
Debt Instrument, Interest Rate, Effective Percentage   7.00%      
Debt Instrument, Description of Variable Rate Basis   prime plus 2.00%      
Proceeds from Loans   $ 650,000      
Line of Credit Facility, Expiration Date   Apr. 01, 2024   Apr. 01, 2025  
Line of Credit Facility, Expiration Period     1 year    
Minimum [Member] | SMI Note [Member]          
Long-Term Debt (Details) [Line Items]          
Debt Instrument, Unused Borrowing Capacity, Amount 1,000,000        
Minimum [Member] | SMII Note [Member]          
Long-Term Debt (Details) [Line Items]          
Debt Instrument, Unused Borrowing Capacity, Amount $ 1,000,000        
Maximum [Member] | SMI Note [Member]          
Long-Term Debt (Details) [Line Items]          
Debt Instrument, Maturity Date Jun. 11, 2020        
Maximum [Member] | SMII Note [Member]          
Long-Term Debt (Details) [Line Items]          
Debt Instrument, Maturity Date Jun. 11, 2020