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Secured Credit Facility (Details) - USD ($)
3 Months Ended
Aug. 01, 2018
Mar. 31, 2019
Secured Credit Facility [Member]    
Secured Credit Facility (Details) [Line Items]    
Line of Credit Facility, Maximum Borrowing Capacity   $ 57,000,000
Debt, Weighted Average Interest Rate   5.49%
Revolving Credit Facility [Member]    
Secured Credit Facility (Details) [Line Items]    
Line of Credit Facility, Current Borrowing Capacity   $ 10,000,000
Secured Debt [Member]    
Secured Credit Facility (Details) [Line Items]    
Long-term Line of Credit   $ 47,000,000
Debt Instrument, Covenant Description   Our loan agreements include restrictions on our ability to pay cash dividends to our stockholders. However, we are allowed to pay dividends (a) (i) in an amount up to $2,700,000 in any year if our “Total Leverage Ratio,” that is, the ratio of our “Indebtedness” to “EBITDA” (earnings before interest, taxes, depreciation and amortization – as defined in the loan documents) is greater than 2.00 to 1.00, and (ii) in any amount if our Total Leverage Ratio is less than 2.00 to 1.00, and (b) in either case, if we are not in default or potential default under the loan agreements
Debt Instrument, Threshold Amount, Dividends   $ 2,700,000
Ratio of Indebtedness to Net Capital   2.37
Debt Instrument, Covenant Compliance   Our credit facility requires us to comply with specified financial ratios and tests. These financial ratios include total leverage ratio, debt service coverage ratio, equity to total assets ratio and annual maximum aggregate capital expenditures
Interest Rate Swap [Member]    
Secured Credit Facility (Details) [Line Items]    
Derivative, Maturity Date Jul. 31, 2025  
Derivative, Notional Amount $ 16,137,500  
Interest Rate Swap [Member] | Secured Credit Facility [Member]    
Secured Credit Facility (Details) [Line Items]    
Line of Credit Facility, Maximum Borrowing Capacity   $ 15,273,050
Debt, Weighted Average Interest Rate   6.02%