Statements of Cash Flows (Unaudited) (USD $)	3 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Cash Flows From Operating Activities:
Net income	$ 1,048,907	$ 1,280,718
Adjustments to reconcile net income to net cash provided by operating activities:
Excess tax benefits from share-based compensation	(21,476)	(11,163)
Stock-based compensation	26,765	32,965
Depreciation	106,318	104,539
ESOP compensation expense	130,428	139,701
Loss on disposal of assets		5,288
Deferred income tax	16,220	(32,219)
Changes in assets and liabilities:
Decrease (increase) in trade receivable, net	2,084,029	(971,552)
Increase in income taxes receivables	(310,697)	(40,707)
Increase in inventories, net	(218,188)	(267,443)
Decrease in prepaid expenses and other current assets	71,603	30,181
Increase in accounts payable	181,499	92,252
Increase in accrued salaries, wages and commissions	134,805	64,746
Decrease in vacation accrual	(51,831)	(100,451)
Decrease in ESOP payable	(29,167)	(30,750)
Decrease in other accrued expenses	(359,783)	(203,089)
Increase in payroll and other taxes withheld and accrued	6,133	5,742
Decrease in income taxes payable	(408,987)	(62,433)
Net cash provided by operating activities	2,406,578	36,325
Cash Flows From Investing Activities:
Additions to property, plant and equipment	(328,311)	(72,187)
Proceeds from loan receivable	10,744	10,426
Purchase of investment securities	(289,087)	(1,621,921)
Proceeds from sale/maturity of investment securities	290,000	1,499,766
Net cash used in investing activities	(316,654)	(183,916)
Cash Flows From Financing Activities:
Sale of treasury stock		66,102
Dividends on common stock	(558,898)	(492,245)
Purchase of treasury stock		(50,566)
Proceeds from exercise of stock options	166,307	67,904
Excess tax benefits from share-based compensation	21,476	11,163
Net cash used in financing activities	(371,115)	(397,642)
Increase (decrease) in cash and cash equivalents	1,718,809	(545,233)
Cash and cash equivalents, beginning of year	9,888,628	11,523,424
Cash and cash equivalents, end of year	11,607,437	10,978,191
Supplemental Schedule of Cash Flow Information:
Income taxes paid	$ 1,107,200	$ 630,000