Note 2. Net Income (loss) Per Common Share: Reconciliation between basic and diluted weighted average number of common shares (Details) (USD $)	3 Months Ended		6 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2011
Basic weighted-average number of common shares outstanding during the year	2,537,737	2,558,533	2,537,733	2,575,405
Weighted-average number of dilutive common stock options outstanding during the year	$ 520	$ 7,925	$ 562
Diluted weighted-average number of common and common equivalent shares outstanding during the year	2,538,257	2,566,458	2,538,295	2,575,405