Statements of Cash Flows (Unaudited) (USD $)	9 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Cash Flows From Operating Activities:
Net income	$ 3,267,725	$ 3,260,630
Adjustments to reconcile net income to net cash provided by operating activities:
Excess tax benefits from share-based compensation	(16,509)	(40,801)
Stock-based compensation	87,777	68,499
Depreciation	312,254	321,144
ESOP compensation expense	401,554	376,251
Loss on disposal of assets	6,152	21,297
Deferred income tax	(97,969)	(84,227)
Changes in assets and liabilities:
(Increase) decrease in trade receivable, net	(367,471)	2,797,157
Increase in income taxes receivables	(228,866)
Increase in inventories	(1,155,855)	(849,949)
Decrease in prepaid expenses and other current assets	(75,124)	(14,003)
Increase in accounts payable	27,047	29,069
Decrease in accrued salaries, wages and commissions	(113,598)	(107,168)
(Decrease) increase in vacation accrual	(34,148)	52,408
Decrease in ESOP payable	(235,750)	(263,812)
Increase in other accrued expenses	85,538	16,698
Increase in payroll and other taxes withheld and accrued	6,180	1,443
Decrease in income taxes payable	(57,087)	(60,673)
Net cash provided by operating activities	1,811,850	5,523,963
Cash Flows From Investing Activities:
Additions to property, plant and equipment	(203,500)	(230,259)
Proceeds from loan receivable	31,515	30,584
Purchase of investment securities	(5,002,595)	(3,663,325)
Maturity of investment securities	4,508,189	2,122,505
Net cash used in investing activities	(666,391)	(1,740,495)
Cash Flows From Financing Activities:
Sale of treasury stock	66,102	58,975
Dividends on common stock	(3,804,060)	(3,629,785)
Purchase of treasury stock	(150,020)	(143,731)
Proceeds from exercise of stock options	417,656	65,050
Excess tax benefits from share-based compensation	16,509	40,801
Net cash used in financing activities	(3,453,813)	(3,608,690)
Decrease in cash and cash equivalents	(2,308,354)	174,778
Cash and cash equivalents, beginning of period	11,523,424	9,695,811
Cash and cash equivalents, end of period	9,215,070	9,870,589
Supplemental Schedule of Cash Flow Information:
Income taxes paid	$ 1,640,000	$ 1,436,000