Quarterly report pursuant to Section 13 or 15(d)

Debt (Narrative) (Details)

v3.8.0.1
Debt (Narrative) (Details) - USD ($)
1 Months Ended 6 Months Ended
Oct. 30, 2017
Dec. 31, 2017
Jun. 30, 2017
Oct. 07, 2016
Debt Instrument [Line Items]        
Line of credit amount outstanding   $ 4,196,000  
Credit facility [Member]        
Debt Instrument [Line Items]        
Revolving line of credit facility amount       $ 20,000,000
Fees, costs and expenses   $ 88,000    
Basis of variable interest rate   one-month LIBOR, plus    
Spread on variable interest rate basis   2.25%    
Expiration date   Oct. 10, 2021    
Line of credit amount outstanding   $ 4,200,000    
Proceeds from credit facility $ 7,900,000 12,600,000    
Available to borrow under the Revolving Line of Credit   $ 10,400,000    
Credit facility [Member] | Minimum [Member]        
Debt Instrument [Line Items]        
Revolving line of credit facility amount 20,000,000      
Credit facility [Member] | Maximum [Member]        
Debt Instrument [Line Items]        
Revolving line of credit facility amount 22,200,000      
Term Loan [Member]        
Debt Instrument [Line Items]        
Revolving line of credit facility amount       5,000,000
Spread on variable interest rate basis   2.85%    
Line of credit amount outstanding   $ 7,000,000    
Monthly payments   100,000    
Proceeds from term loan   $ 2,800,000    
Term Loan [Member] | Minimum [Member]        
Debt Instrument [Line Items]        
Monthly payments 60,000      
Term Loan [Member] | Maximum [Member]        
Debt Instrument [Line Items]        
Monthly payments $ 100,000      
Revolving line of credit [Member]        
Debt Instrument [Line Items]        
Revolving line of credit facility amount       $ 15,000,000