CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	9 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Operating activities:
Net (loss) income	$ (893,259)	$ 1,155,513
Adjustments to reconcile net income to net cash provided by operating activities:
(Recovery) of provision for doubtful accounts	(4,843)	(20,488)
Loss on disposal of equipment and leasehold improvements	(6,230)	(40,710)
Depreciation of equipment and leasehold improvements	375,786	367,369
Stock-based compensation expense	265,568	366,665
Deferred income taxes	190,016	303,236
Change in cash surrender value of life insurance	(187,563)	(142,036)
Change in deferred compensation accrual	116,331	44,179
Deferred compensation paid	(112,500)	(75,000)
Net changes in operating assets and liabilities (see note 9)	761,846	(1,700,697)
Cash provided by operating activities	517,612	339,451
Investing activities:
Life insurance premiums paid	(133,767)	(129,542)
Purchase of equipment and leasehold improvements	(365,081)	(291,872)
Cash (used in) investing activities	(498,848)	(421,414)
Financing activities:
Net increase (decrease) in cash and cash equivalents	18,764	(81,963)
Cash and cash equivalents at beginning of period	735,393	1,000,266
Cash and cash equivalents at end of period	$ 754,157	$ 918,303