5. Related Party Transactions: Related Party interest expense (Tables)

3 Months Ended

Mar. 31, 2019

		March 31, 2019		December 31, 2018
Mine Systems Design (“MSD”), a company in which our Company’s Vice President owns 10.4%, 12% interest, monthly payments of $4,910 through March 2019	$	-	$	14,696
Ophir Holdings LLC, a company owned by three of the Company’s Officers, 6% interest, monthly payments of $3,777 with a balloon payment of $148,285 in February 2021		214,091		222,131
		214,091		236,827
Total		214,091		236,827
Current portion		(33,391)		(47,591)
Long term portion	$	180,700	$	189,236