XML 49 R38.htm IDEA: XBRL DOCUMENT v3.8.0.1
Long-Term Debt And Credit Facilities (Narrative) (Details)
Apr. 26, 2018
USD ($)
Mar. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Nov. 06, 2017
USD ($)
Debt Instrument [Line Items]        
Minimum tangible net worth requirement, period one   $ 24,000,000    
Minimum tangible net worth requirement, period two   24,500,000 $ 24,500,000  
Total liquidity   16,100,000    
Cash and cash equivalents   11,613,713 $ 3,686,302  
Revolving Credit Facility [Member]        
Debt Instrument [Line Items]        
Line of credit facility, maximum borrowing capacity   $ 5,000,000   $ 10,000,000
Annual interest rate   5.75%   7.00%
Line of credit facility, amount outstanding   $ 0    
Line of credit facility, current borrowing capacity   4,500,000    
Revolving Credit Facility [Member] | Cash and Cash Equivalents [Member]        
Debt Instrument [Line Items]        
Minimum tangible net worth requirement   $ 1,500,000    
Revolving Credit Facility [Member] | Subsequent Event [Member]        
Debt Instrument [Line Items]        
Line of credit facility, maximum borrowing capacity $ 5,000,000      
Revolving Credit Facility [Member] | Subsequent Event [Member] | Streamline Period [Member]        
Debt Instrument [Line Items]        
Liquidity ratio 1.75      
Line of credit interest rate 4.50%      
Revolving Credit Facility [Member] | Subsequent Event [Member] | Non-Streamline Period [Member]        
Debt Instrument [Line Items]        
Interest rate added to prime rate 1.50%      
Minimum [Member] | Revolving Credit Facility [Member]        
Debt Instrument [Line Items]        
Liquidity ratio   1.50    
Minimum [Member] | Revolving Credit Facility [Member] | Cash and Cash Equivalents [Member]        
Debt Instrument [Line Items]        
Minimum tangible net worth requirement   $ 1,500,000    
Minimum [Member] | Revolving Credit Facility [Member] | Subsequent Event [Member] | Streamline Period [Member]        
Debt Instrument [Line Items]        
Liquidity ratio 1.75      
Line of credit interest rate 4.50%      
Minimum [Member] | Revolving Credit Facility [Member] | Subsequent Event [Member] | Non-Streamline Period [Member]        
Debt Instrument [Line Items]        
Line of credit interest rate 4.50%