Operating Segments (Reconciliation Of Income Before Income Taxes) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total consolidated income before income taxes	$ 7,119,980	$ 4,616,671
Reportable Segment [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total consolidated income before income taxes	8,397,000	5,960,000
Elimination Of Intersegment [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total consolidated income before income taxes	$ (1,277,000)	$ (1,343,000)