Stockholders' Equity Transactions - (Narrative) (Detail) (Employee Stock Option Plan 2002 [Member], USD $)	9 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Stockholders Equity Note [Line Items]
Options exercised	337,600	729,000
Cashless Exercise [Member]
Stockholders Equity Note [Line Items]
Options exercised	324,100
Chief executive officer [Member]
Stockholders Equity Note [Line Items]
Options exercised	135,000
Shares repurchased and held in Treasury	50,000
Treasury stock purchase price per share, equal to prior day's closing price	$ 5.70
Shares repurchased and held in Treasury	$ 285,000