XML 32 R23.htm IDEA: XBRL DOCUMENT v2.4.1.9
Employee Stock Ownership Plan (Narrative) (Details) (USD $)
3 Months Ended 6 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2014
H
Dec. 31, 2013
ESOP compensation expense     $ 208,678us-gaap_EmployeeStockOwnershipPlanESOPCompensationExpense $ 283,663us-gaap_EmployeeStockOwnershipPlanESOPCompensationExpense
Employee Stock Ownership Plan [Member]        
Plan description     The Company sponsors a leveraged employee stock ownership plan (the "ESOP") that covers all nonunion employees who work 1,000 or more hours per year and are employed on June 30.  
Number of hours worked per year     1,000esp_EmployeeStockOwnershipPlanHoursWorked
/ us-gaap_EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis
= esp_EmployeeStockOwnershipPlanMember
 
ESOP compensation expense 97,487us-gaap_EmployeeStockOwnershipPlanESOPCompensationExpense
/ us-gaap_EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis
= esp_EmployeeStockOwnershipPlanMember
153,236us-gaap_EmployeeStockOwnershipPlanESOPCompensationExpense
/ us-gaap_EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis
= esp_EmployeeStockOwnershipPlanMember
208,678us-gaap_EmployeeStockOwnershipPlanESOPCompensationExpense
/ us-gaap_EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis
= esp_EmployeeStockOwnershipPlanMember
283,663us-gaap_EmployeeStockOwnershipPlanESOPCompensationExpense
/ us-gaap_EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis
= esp_EmployeeStockOwnershipPlanMember
Stock repurchased (in shares) 3,644us-gaap_StockRepurchasedDuringPeriodShares
/ us-gaap_EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis
= esp_EmployeeStockOwnershipPlanMember
  13,553us-gaap_StockRepurchasedDuringPeriodShares
/ us-gaap_EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis
= esp_EmployeeStockOwnershipPlanMember
 
Stock repurchased $ 85,671us-gaap_StockRedeemedOrCalledDuringPeriodValue
/ us-gaap_EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis
= esp_EmployeeStockOwnershipPlanMember
  $ 320,504us-gaap_StockRedeemedOrCalledDuringPeriodValue
/ us-gaap_EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis
= esp_EmployeeStockOwnershipPlanMember