Annual report pursuant to Section 13 and 15(d)

Interest Rate Swap (Narrative) (Details)

v3.8.0.1
Interest Rate Swap (Narrative) (Details) - Palmer of Texas [Member] - Interest Rate Swap [Member] - USD ($)
Dec. 31, 2017
Dec. 31, 2016
Not Designated as Hedging Instrument [Member]    
Derivative [Line Items]    
Interest rate swap, notional amount $ 10,500,000 $ 12,750,000
Term Loan [Member]    
Derivative [Line Items]    
Interest rate swap asset $ 127,981 $ 31,285