CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Operating activities:
Net income	$ 396,400	$ 66,100
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	178,800	185,900
Deferred income tax expense (benefit)	17,600	(19,700)
Income tax benefit of stock options exercised		600
Loss on sale of investment securities	7,600	1,000
Stock-based compensation	8,500	7,000
Changes in operating assets and liabilities:
Trade accounts receivable	(192,400)	(3,500)
Inventories	(91,900)	26,100
Prepaid and other current assets	108,800	29,900
Other assets	1,600
Accounts payable	42,000	(13,300)
Customer advances	(82,600)	98,500
Accrued expenses and taxes	170,000	(46,800)
Total adjustments	168,000	265,700
Net cash provided by operating activities	564,400	331,800
Investing activities:
Payment for intangible assets acquired in acquisition (Note 2)		(260,000)
Purchase of investment securities, available for sale	(920,500)	(10,900)
Redemption of investment securities, available for sale	717,600	800
Capital expenditures	(37,500)	(75,300)
Purchase of other intangible assets	(13,300)	(4,900)
Net cash used in investing activities	(253,700)	(350,300)
Financing activities:
Line of credit proceeds		60,000
Line of credit repayments		(60,000)
Payments of contingent consideration	(36,800)	(20,600)
Proceeds from exercise of stock options		9,600
Cash dividend declared and paid	(40,100)	(59,800)
Principal payments on note payable	(75,800)	(49,200)
Net cash used in financing activities	(152,700)	(120,000)
Net increase (decrease) in cash and cash equivalents	158,000	(138,500)
Cash and cash equivalents, beginning of year	769,300	907,800
Cash and cash equivalents, end of period	927,300	769,300
Supplemental disclosures
Cash paid during the period for: income taxes		3,200
Cash paid during the period for: interest	$ 4,800	$ 4,600