Segment Information

12 Months Ended

Jun. 30, 2018

Segment Reporting [Abstract]

Segment Reporting Disclosure [Text Block]

10. Segment Information

The Company operates in one segment consisting of the manufacturing, marketing and distribution of a variety of respiratory products used in the health care industry to hospitals, hospital equipment dealers, hospital construction contractors, home health care dealers and emergency medical product dealers. The Company’s product lines include respiratory care products, medical gas equipment and emergency medical products. The Company does not have any one single customer that represents more than 10 percent of total sales. Sales by region, and by product, are as follows:

	Sales by Region
	2018		2017		2016
Domestic United States	$	25,711,912	$	26,258,439	$	27,437,238
Europe		1,428,245		951,441		773,129
Canada		795,357		690,010		916,528
Latin America		1,855,013		2,087,670		3,168,891
Middle East		857,066		694,387		843,092
Far East		3,107,339		2,821,895		2,803,451
Other International		5,021		8,188		10,158
	$	33,759,953	$	33,512,030	$	35,952,487

	Sales by Product
	2018		2017		2016
Respiratory care products	$	9,037,704	$	9,105,694	$	9,077,370
Medical gas equipment		17,645,413		17,660,524		19,712,286
Emergency medical products		7,076,836		6,745,812		7,162,831
	$	33,759,953	$	33,512,030	$	35,952,487