Long-Term Debt (Narrative) (Detail) (USD $)				3 Months Ended			3 Months Ended			3 Months Ended
	Sep. 30, 2012	Jun. 30, 2012	Sep. 30, 2012 Revolving line of credit expiring June 2017 [Member]	Sep. 30, 2012 Term loan expiring June 2019 [Member]	Sep. 30, 2012 Term loan expiring June 2017 [Member]	Sep. 30, 2012 Third Amended and Restated Credit Agreement [Member]	Sep. 30, 2012 Third Amended and Restated Credit Agreement [Member] Variable Interest Rate Option One [Member]	Sep. 30, 2012 Third Amended and Restated Credit Agreement [Member] Variable Interest Rate Option One [Member] Minimum [Member]	Sep. 30, 2012 Third Amended and Restated Credit Agreement [Member] Variable Interest Rate Option One [Member] Maximum [Member]	Sep. 30, 2012 Third Amended and Restated Credit Agreement [Member] Variable Interest Rate Option Two [Member]
Debt Instrument [Line Items]
Revolving credit loan facility, maximum borrowing capacity			$ 11,000,000
Amount outstanding	18,100,000	20,257,000		6,000,000	6,500,000
Number of required loan repayments from inception				28	20
Frequency of required repayments				Quarterly	Quarterly
Quarterly principal repayment amount				75,000	325,000
Payoff amount at maturity				$ 3,900,000
Reference rate							LIBOR			Prime
Interest rate over the reference rate								2.00%	2.75%	0.25%
Percentage of common stock of foreign subsidiaries pledged as collateral						65.00%
Percentage of common stock of domestic subsidiaries pledged as collateral						100.00%