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Earnings Per Common Share (EPS) (Details) (USD $)
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Shares used in calculation of diluted EPS    
Weighted average common shares outstanding 2,018,253us-gaap_WeightedAverageNumberOfSharesOutstandingBasic 2,012,765us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
Dilutive effect of stock options   3,227us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
Weighted average common and common equivalent shares outstanding 2,018,253us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding 2,015,992us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding
Outstanding options to purchase shares of common stock not included 8,668iknx_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumberWithAntidilutiveEffect  
Weighted average exercise price of outstanding options not included (in dollars per share) $ 13.99iknx_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWithAntidilutiveEffectWeightedAverageExercisePrice  
Stock Options    
Anti-dilutive securities    
Anti-dilutive securities outstanding (in shares)   0us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
/ us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis
= us-gaap_EmployeeStockOptionMember