XML 17 R37.htm IDEA: XBRL DOCUMENT v2.4.0.6
Postretirement Benefits (Narrative) (Details) (Postretirement Benefits [Member], USD $)
3 Months Ended
Sep. 30, 2012
Postretirement Benefits [Member]
 
Defined Benefit Plan Disclosure [Line Items]  
Employer contributions $ 22,000
Estimated future employer contributions in current fiscal year $ 100,000