CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	9 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Document Fiscal Year Focus	2019
Operating activities:
Net income (loss)	$ 373,838	$ (3,681,626)
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for (recovery of) doubtful accounts	4,039	2,626
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property	0	343
Depreciation of equipment and leasehold improvements	336,946	385,221
Stock-based compensation expense	292,186	248,624
Deferred income taxes	(13,277)	3,041,405
Change in cash surrender value of life insurance	(34,801)	(181,403)
Change in deferred revenue	(96,118)	(109,158)
Change in deferred compensation accrual	131,965	137,718
Deferred compensation paid	112,500	112,500
Net changes in operating assets and liabilities (see note 10)	954,130	1,788,052
Cash provided by operating activities	1,836,408	1,519,302
Investing activities:
Purchase of equipment and leasehold improvements	(118,647)	(250,618)
Life insurance premiums paid	(123,076)	(131,058)
Cash (used in) investing activities	(241,723)	(381,676)
Financing activities:
Proceeds from exercise of stock options	46,677	0
Cash provided by financing activities	46,677	0
Net increase in cash and cash equivalents	1,641,362	1,137,626
Cash and cash equivalents at beginning of period	1,081,533	$ 432,283
Cash and cash equivalents at end of period	$ 2,722,895