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Note 8 - Related Party Transactions (Details) (USD $)
12 Months Ended 51 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Jun. 30, 2014
RedRidge Finance Group [Member]        
Note 8 - Related Party Transactions (Details) [Line Items]        
Related Party Transaction, Expenses from Transactions with Related Party $ 426,000us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= exam_RedRidgeFinanceGroupMember
$ 298,000us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= exam_RedRidgeFinanceGroupMember
$ 238,000us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= exam_RedRidgeFinanceGroupMember
 
Compass [Member] | Rental and Related Payments [Member]        
Note 8 - Related Party Transactions (Details) [Line Items]        
Related Party Transaction, Amounts of Transaction 97,000us-gaap_RelatedPartyTransactionAmountsOfTransaction
/ us-gaap_RelatedPartyTransactionAxis
= exam_RentalAndRelatedPaymentsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= exam_CompassMember
151,000us-gaap_RelatedPartyTransactionAmountsOfTransaction
/ us-gaap_RelatedPartyTransactionAxis
= exam_RentalAndRelatedPaymentsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= exam_CompassMember
   
Compass [Member]        
Note 8 - Related Party Transactions (Details) [Line Items]        
Related Party Transaction, Amounts of Transaction, Monthly Rental Fee       10,080exam_RelatedPartyTransactionAmountsOfTransactionMonthlyRentalFee
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= exam_CompassMember
Related Party Transaction, Amounts of Transaction     $ 124,000us-gaap_RelatedPartyTransactionAmountsOfTransaction
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= exam_CompassMember