CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	9 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Operating activities:
Net income	$ 1,155,513	$ 127,806
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
(Recoveries of previously written off) provision for doubtful accounts	(20,488)	43,278
Loss on disposal of fixed assets	(40,710)	(14,953)
Depreciation of equipment and leasehold improvements	367,369	437,344
Stock-based compensation expense	366,665	474,501
Deferred income taxes	303,236	309,969
Change in cash surrender value of life insurance	(142,036)	(114,952)
Change in deferred compensation accrual	44,179	(25,836)
Deferred compensation paid	(75,000)	0
Net changes in operating assets and liabilities (see note 9)	(1,700,697)	(1,626,541)
Cash provided by (used in) operating activities	339,451	(359,478)
Investing activities:
Life insurance premiums paid	(129,542)	(231,781)
Purchase of equipment and leasehold improvements	(291,872)	(263,574)
Cash (used in) investing activities	(421,414)	(495,355)
Financing activities:
Net (decrease) in cash and cash equivalents	(81,963)	(854,833)
Cash and cash equivalents at beginning of period	1,000,266	$ 1,899,411
Cash and cash equivalents at end of period	$ 918,303