Income Taxes (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Federal:
Current	$ 394,000	$ (450,000)
Deferred	14,000	39,000
Total Federal	408,000	(411,000)
State:
Current	147,000	(91,000)
Deferred	2,000	4,000
Total State	149,000	(87,000)
Income tax benefit (expense)	557,000	(498,000)
Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation [Abstract]
Income taxes at statutory rate	543,000	(445,000)
State income taxes, net of federal benefit	41,000	(47,000)
Other, including prior year (over) under accrual	$ (27,000)	$ (6,000)
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]
Income taxes at statutory rate	34.01167%	34.00%
State income taxes, net of federal benefit	2.60%	4.50%
Other	(1.70%)	(2.40%)
Effective income tax rate	34.90%	36.10%
Components of Deferred Tax Assets and Liabilities [Abstract]
Depreciation	$ (855,000)	$ (663,000)
Unrealized losses on investments available for sale	6,000	3,000
Provision for doubtful accounts	147,000	105,000
Vacation accrued	105,000	91,000
Deferred income	302,000	161,000
Other	62,000	81,000
Net deferred tax asset (liability)	(190,000)	(222,000)
Current portion, net	665,000	441,000
Long-term portion, net	$ (855,000)	$ (663,000)