Note 6 - Income Taxes - Reconciliation of Computed Income Tax (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Computed Federal Tax Benefit	$ (87,418)	$ (1,141,678)
Increase (Decrease) in Tax From:
Allowable Depletion in Excess of Basis	(83,460)	(359,552)
Dividend Received Deduction	(878)	(723)
State Income Tax Benefit	(182)	(15,790)
Other	(948)	45,198
Total Benefit	$ (172,886)	$ (1,472,545)
Effective Tax Rate	67.00%	44.00%