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Note 1. Schedule of Earnings Per Share Reconciliation (Details) (Consolidated)
3 Months Ended 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Sep. 24, 2014
Sep. 25, 2013
Sep. 26, 2012
Consolidated
         
Basic earnings per share:          
Weighted average common shares, basic 1,877,723us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntitiesMember
1,714,727us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntitiesMember
1,709,621us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntitiesMember
1,543,370us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntitiesMember
1,551,613us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntitiesMember
Diluted earnings per share:          
Weighted average common shares, diluted 1,877,723us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntitiesMember
1,714,727us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntitiesMember
1,709,621us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntitiesMember
1,543,370us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntitiesMember
1,551,613us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntitiesMember
Dilutive effect of stock awards 1,691us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntitiesMember
3,534us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntitiesMember
3,154us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntitiesMember
3,295us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntitiesMember
3,793us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntitiesMember
Weighted average common and incremental shares 1,879,414us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntitiesMember
1,718,261us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntitiesMember
1,712,775us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntitiesMember
1,546,665us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntitiesMember
1,555,406us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntitiesMember
Number of share - based awards excluded from the calculation of earnings per share as the awards' exercise prices were greater than the average market price of the Company's common stock 2,637us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntitiesMember
0us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntitiesMember
0us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntitiesMember
705us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntitiesMember
705us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntitiesMember