Schedule of Other Stock Options Issued (Details) - shares	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2012
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Options outstanding, beginning of year	2,165,000	2,130,000
Options, Granted (in shares)	50,000	100,000
Options forfeited	0	(17,500)
Options outstanding, end of year	2,175,000	2,165,000
Other Options Issued [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Options outstanding, beginning of year	625,000	625,000
Options, Granted (in shares)	0	0	625,000
Options forfeited	0	0
Options outstanding, end of year	625,000	625,000