XML 43 R17.htm IDEA: XBRL DOCUMENT v3.19.3
Concentrations
9 Months Ended
Sep. 30, 2019
Risks and Uncertainties [Abstract]  
Concentrations

(9) Concentrations.  The mining royalty lands segment has a total of five tenants currently leasing mining locations and one lessee that accounted for 31% of the Company’s consolidated revenues during the nine months ended September 30, 2019 and $469,000 of accounts receivable at September 30, 2019.  The termination of these lessees’ underlying leases could have a material adverse effect on the Company. The Company places its cash and cash equivalents with Wells Fargo Bank and First Tennessee Bank.  At times, such amounts may exceed FDIC limits.