13. Significant Customer Concentrations (Details) - Schedules of Concentration of Risk, by Risk Factor - USD ($)	3 Months Ended								12 Months Ended
	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2019	Mar. 31, 2018
Concentration Risk [Line Items]
Net sales	$ 4,103,159	$ 3,975,736	$ 2,222,941	$ 1,814,214	$ 2,069,553	$ 2,625,793	$ 1,787,165	$ 3,542,077	$ 12,116,050	$ 10,024,588
Customer Concentration Risk [Member] | Revenue, Product and Service Benchmark [Member] | Domestic Customers [Member]
Concentration Risk [Line Items]
Net sales									9,677,822	7,424,780
Customer Concentration Risk [Member] | Revenue, Product and Service Benchmark [Member] | Foreign Customers [Member]
Concentration Risk [Line Items]
Net sales									$ 2,438,228	$ 2,599,808