XML 21 R48.htm IDEA: XBRL DOCUMENT v2.4.1.9
SHARE-BASED PAYMENTS (Details) (USD $)
12 Months Ended
Sep. 30, 2014
Sep. 30, 2013
SHARE-BASED PAYMENTS    
Share-based compensation benefit $ (380,000)us-gaap_AllocatedShareBasedCompensationExpense $ (73,000)us-gaap_AllocatedShareBasedCompensationExpense
Total unrecognized compensation cost $ 64,000us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions  
Period over which unrecognized compensation cost is expected to be recognized 3 years 2 months 12 days  
Weighted-average grant date fair value of employee options granted (in dollars per share) $ 2.04us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue  
Options granted (in shares)   0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
1998 Stock Option Plan    
Share-based payments    
Shares authorized and reserved for issuance 780,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
/ us-gaap_PlanNameAxis
= brn_StockOptionPlan1998Member
 
Vesting period 4 years  
Expiration period 10 years  
1998 Stock Option Plan | Affiliates    
Share-based payments    
Exercise price as a percentage of closing market price of stock on the date preceding the date of grant 110.00%brn_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercentOfClosingMarketPrice
/ dei_LegalEntityAxis
= us-gaap_AffiliatedEntityMember
/ us-gaap_PlanNameAxis
= brn_StockOptionPlan1998Member
 
Expiration period 5 years  
Non-qualified stock options    
Share-based payments    
Vesting period 5 years  
Expiration period 10 years  
2008 Equity Incentive Plan    
Share-based payments    
Shares authorized and reserved for issuance 800,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
/ us-gaap_PlanNameAxis
= brn_EquityIncentivePlan2008Member
 
Shares available for grant 62,500us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
/ us-gaap_PlanNameAxis
= brn_EquityIncentivePlan2008Member
 
Vesting period 4 years  
Period from the date of grant from which vesting commences 1 year  
Expiration period 10 years