Stockholders' Equity Transactions - Narrative (Detail) (USD $)	3 Months Ended	6 Months Ended
	Dec. 31, 2012	Dec. 31, 2012
Stockholders Equity Note [Line Items]
Tax benefit from stock option exercise		119,000
Chief executive officer [Member]
Stockholders Equity Note [Line Items]
Shares repurchased and held in Treasury	128,588
Treasury stock purchase price per share, equal to prior day's closing price	3.38
Shares repurchased and held in Treasury	434,627
Employee Stock Option Plan 2002 [Member]
Stockholders Equity Note [Line Items]
Options exercised	702,000	729,000
Employee Stock Option Plan 2002 [Member] | Chief executive officer [Member]
Stockholders Equity Note [Line Items]
Options exercised	675,000
Tax benefit from stock option exercise	119,000