Consolidated Statements of Cash Flows - USD ($)		12 Months Ended
		Jun. 30, 2019		Jun. 30, 2018
Operating activities:
Net income (loss)		$ 434,114		$ (3,411,220)	[1],[2],[3]
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Provision for (recovery of) doubtful accounts		23,422		(4,874)	[1]
Loss on disposal of equipment and leasehold improvements				343	[1]
Depreciation of equipment and leasehold improvements		429,750		526,261	[1]
Stock-based compensation expense		387,556		331,560	[1]
Deferred income taxes		(13,276)		3,041,405	[1]
Change in cash surrender value of life insurance		(72,019)		(218,224)	[1]
Change in deferred revenue		(50,882)		15,638	[1]
Change in deferred compensation accrual		175,953		249,591	[1]
Deferred compensation paid		(150,000)		(150,000)	[1]
Net changes in operating assets and liabilities (see Note 13)		246,447		650,607	[1],[4]
Cash provided by operating activities		1,411,065		1,031,087	[1]
Investing activities:
Purchase of equipment and leasehold improvements		(187,756)		(250,618)	[1]
Life insurance premiums paid		(123,237)		(131,219)	[1]
Cash used in investing activities		(310,993)		(381,837)	[1]
Financing Activities:
Exercise of common stock options		46,677			[1]
Net cash flows provided by financing activities		46,677			[1]
Net increase in cash and cash equivalents		1,146,749		649,250	[1]
Cash and cash equivalents at beginning of year	[1]	1,081,533	[5]	432,283
Cash and cash equivalents at end of year		$ 2,228,282		$ 1,081,533	[1],[5]

[1] As adjusted for the retrospective adoption of ASC 606

[2] As adjusted for the retrospective adoption of ASC 606

[3] As adjusted for the retrospective adoption of ASC 606

[4] As adjusted for retrospective adoption of ASC 606 and ASC 842

[5] As adjusted for the retrospective adoption of ASC 606 and ASC 842