Balance Sheets (Unaudited) (USD $)	Mar. 31, 2013	Jun. 30, 2012
ASSETS
Cash and cash equivalents	$ 9,215,070	$ 11,523,424
Investment securities	3,681,732	3,184,711
Trade accounts receivable, net	3,585,346	3,217,875
Income tax receivable	228,866
Inventories:
Raw materials	1,480,737	1,364,019
Work-in-process	660,140	801,092
Costs relating to contracts in process, net of advance payments of $216,827 at March 31, 2013 and $511,502 at June 30, 2012	10,660,684	9,480,595
Total inventories	12,801,561	11,645,706
Deferred income taxes	478,523	422,998
Prepaid expenses and other current assets	275,446	200,322
Total current assets	30,266,544	30,195,036
Property, plant and equipment, net	2,408,290	2,523,196
Loan receivable	35,856	67,371
Total assets	32,710,690	32,785,603
Accounts payable	1,336,084	1,309,037
Accrued expenses:
Salaries, wages and commissions	304,079	417,677
Vacation	673,612	707,760
ESOP payable	165,804
Other	528,233	442,695
Payroll and other taxes withheld and accrued	51,066	44,886
Income taxes payable		73,596
Total current liabilities	3,058,878	2,995,651
Deferred income taxes	180,975	222,504
Total liabilities	3,239,853	3,218,155
Common stock, par value $.33-1/3 per share. Authorized 10,000,000 shares; Issued 3,029,874 shares on March 31, 2013 and June 30, 2012. Outstanding 2,340,790 and 2,320,822 (includes 126,666 and 136,666 Unearned ESOP Shares on March 31, 2013 and June 30, 2012, respectively)	1,009,958	1,009,958
Capital in excess of par value	15,469,358	15,093,512
Accumulated other comprehensive income/loss	3,177	1,477
Retained earnings	22,517,427	23,053,762
[TotalStockholdersEquityBeforyEsopAndTreasuryStock]	38,999,920	39,158,709
Less: Unearned ESOP shares; Cost of 689,084 and 708,914 shares on March 31, 2013 and June 30, 2012, respectively	(1,974,829)	(1,974,829)
Treasury shares, cost of 689,084 and 709,052 shares on March 31, 2013 and June 30, 2012, respectively	(7,554,254)	(7,616,432)
Total stockholders' equity	29,470,837	29,567,448
Total liabilities and stockholders' equity	$ 32,710,690	$ 32,785,603