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Income Taxes (Details) (USD $)
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Federal:    
Current $ 329,000 $ (272,000)
Deferred (190,000) 153,000
Total Federal 139,000 (119,000)
State:    
Current 87,000 (39,000)
Deferred (44,000) 22,000
Total State 43,000 (17,000)
Income tax benefit (expense) 182,000 (136,000)
Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation [Abstract]    
Income taxes at statutory rate 190,000 (166,000)
State income taxes, net of federal benefit 25,000 (19,000)
Other, including prior year (over) under accrual (33,000) 49,000
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]    
Income taxes at statutory rate 34.00% (34.00%)
State income taxes, net of federal benefit 4.50% (3.90%)
Other, including prior year (over) under accrual (5.90%) 10.10%
Effective income tax rate 32.60% (27.80%)
Components of Deferred Tax Assets and Liabilities [Abstract]    
Depreciation (694,000) (822,000)
Provision for doubtful accounts 90,000 91,000
Vacation accrued 81,000 75,000
Deferred income 186,000 85,000
Other 81,000 81,000
Net deferred tax asset (liability) (256,000) (490,000)
Current portion, net 438,000 332,000
Long-term portion, net $ (694,000) $ (822,000)