Condensed Statements of Cash Flows (Unaudited) - USD ($)	9 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Cash Flows From Operating Activities
Net income	$ 783,183	$ 1,282,977
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	495,797	473,813
Amortization of finite-life intangible assets	85,166	89,813
Amortization of debt issuance costs	5,373	10,871
Share-based compensation expense	604,056	373,913
Deferred income taxes	43,000	13,000
Loss on disposal of property and equipment		520
Loss on disposal of intangible assets		111,498
Changes in operating assets and liabilities:
Accounts receivable	(125,452)	(1,321,989)
Inventories	373,417	(65,630)
Prepaid expenses and other assets	(90,132)	(49,140)
Income tax receivable	(91,103)	192,685
Income tax payable	(156,524)	17,024
Accounts payable and accrued liabilities	(55,007)	(323,453)
Net cash provided by operating activities	1,871,774	805,902
Cash Flows From Investing Activities
Expenditures for property and equipment	(379,328)	(425,838)
Expenditures for finite-life intangible assets	(27,818)	(60,131)
Net cash used in investing activities	(407,146)	(485,969)
Cash Flows From Financing Activities
Principal payments on long-term debt including capital lease obligations	(37,927)	(36,473)
Issuance of common stock upon exercise of options	62,412
Payment of deferred financing fees		(4,872)
Net cash provided by (used in) financing activities	24,485	(41,345)
Net increase in cash	1,489,113	278,588
Cash
Beginning of period	5,573,709	5,123,355
End of period	$ 7,062,822	$ 5,401,943