CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	3 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Operating activities:
Net income (loss)	$ 84,211	$ (100,804)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Provision for (recovery of) doubtful accounts	705	(14,682)
(Gain) on disposal of equipment and leasehold improvements	0	150
Depreciation of equipment and leasehold improvements	123,837	123,505
Stock-based compensation expense	88,523	116,004
Deferred income taxes	66,990	60,122
Change in cash surrender value of life insurance	(181,176)	(133,306)
Change in deferred compensation accrual	38,777	9,453
Deferred compensation paid	(37,500)	(37,500)
Net changes in operating assets and liabilities (see note 9)	(121,922)	(1,066,264)
Cash provided by (used in) operating activities	62,445	(1,043,622)
Investing activities:
Life insurance premiums paid	(131,608)	(129,219)
Purchase of equipment and leasehold improvements	(206,309)	(46,635)
Cash (used in) investing activities	(337,917)	(175,854)
Financing activities:
Net proceeds from line of credit facility	0	400,000
Cash provided by financing activities	0	400,000
Net (decrease) in cash and cash equivalents	(275,472)	(819,476)
Cash and cash equivalents at beginning of period	735,393	1,000,266
Cash and cash equivalents at end of period	$ 459,921	$ 180,790