Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Current
Federal
State and local	$ (601)	$ (941)	$ (835)
Current	(601)	(941)	(835)
Deferred
Federal	1,726	6,081	8,346
State and local	232	770	1,271
Increase (decrease) resulting from:
State income taxes, net of federal income tax	104	592	814
Permanent difference for compensation limitation	637	595	575
Expense reflected in tax basis	98	415
Tax credit included in taxable income	252	327	320
Other permanent differences	110	47	931
Capital goods excise tax credit	(601)	(942)	(836)
Other, net	54	51	6
Change in valuation allowance	$ (132)	62	420
Statutory federal income tax rate (as a percent)	34.00%
Income tax at federal rate	$ 835	4,763	6,552
Total income tax expense	1,357	5,910	8,782
Unrecognized Tax Benefits	0	0	0
Interest or penalties related to tax assessments recognized	$ 0	$ 0	$ 0

Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to nondeductible expense reflected in Tax basis.

No definition available.