Statements of Cash Flows (USD $)	12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Cash Flows From Operating Activities:
Net income	$ 1,167,885	$ 5,562,425
Adjustments to reconcile net income to net cash provided by operating activities:
Excess tax benefits from share-based compensation	(26,242)	(16,509)
Stock-based compensation	99,050	115,183
Depreciation	452,390	418,149
ESOP compensation expense	552,998	528,804
Loss on disposal of assets	13	6,222
Deferred income tax expense (benefit)	183,319	(22,641)
Changes in assets and liabilities:
Decrease (increase) in trade receivable, net	4,009,548	(3,986,351)
Increase in income tax receivable	(943,234)
Decrease in inventories, net	762,520	271,936
Decrease (increase) in prepaid expenses and other current assets	137,960	(115,414)
Decrease in accounts payable	(545,861)	(35,895)
Increase (decrease) in accrued salaries, wages and commissions	43,435	(47,123)
(Decrease) increase in vacation accrual	(54,754)	40,280
(Decrease) increase in other accrued expenses	(49,925)	187,183
Increase in payroll and other taxes withheld and accrued	2,662	6,005
(Decrease) increase in income taxes payable	(404,221)	373,376
Net cash provided by operating activities	5,387,543	3,285,630
Cash Flows From Investing Activities:
Additions to property, plant and equipment	(709,972)	(322,507)
Proceeds from loan receivable	25,194	42,177
Purchase of investment securities	(3,456,934)	(7,359,816)
Proceeds from sale/maturity of investment securities	2,436,165	6,649,921
Net cash used in investing activities	(1,705,547)	(990,225)
Cash Flows From Financing Activities:
Sale of treasury stock		66,102
Dividends on common stock	(4,481,066)	(4,356,066)
Purchase of treasury stock		(150,020)
Proceeds from exercise of stock options	441,091	493,274
Excess tax benefits from share-based compensation	26,242	16,509
Net cash used in financing activities	(4,013,733)	(3,930,201)
Decrease in cash and cash equivalents	(331,737)	(1,634,796)
Cash and cash equivalents, beginning of year	9,888,628	11,523,424
Cash and cash equivalents, end of year	9,556,891	9,888,628
Supplemental Schedule of Cash Flow Information:
Income taxes paid	$ 1,462,200	$ 1,960,000