Pension Plan (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Defined Benefit Plan Disclosure [Line Items]
Highest consecutive years of employee compensation used to compute benefit	3 years
Years of employment used in benefit computation	10 years
Defined Contribution Plan [Abstract]
Employer matching contribution percent of employee contribution (in hundredths)	5.00%
Maximum annual contribution per employee	$ 2,500
Employer contribution to plan	134,000	$ 148,000
Defined Benefit Pension Plan [Member]
Change in Benefit Obligation [Roll Forward]
Benefit obligation at beginning of year	15,438,000	14,488,000
Benefits paid	(971,000)	(967,000)
Actuarial (gain) loss	(72,000)	1,315,000
Benefit obligation at end of year	15,024,000	15,438,000
Unrecognized prior service cost		90,000
Unrecognized actuarial loss	3,677,000	3,935,000
Total unrecognized cost	$ 3,677,000	$ 4,025,000
Assumptions Used to Determine the Benefit Obligations [Abstract]
Discount rate (in hundredths)	3.81%	3.52%
Rate of compensation increase (in hundredths)	4.00%	4.00%
Assumptions Used to Determine the Net Periodic Pension Cost [Abstract]
Discount rate (in hundredths)	3.81%	3.52%
Rate of compensation increase (in hundredths)	4.00%	4.00%
Net Pension Cost [Abstract]
Service cost	$ 64,000	$ 64,000
Interest cost	565,000	538,000
Amortization of prior service cost	90,000	90,000
Amortization of actuarial loss	(186,000)	(128,000)
Net periodic benefit cost	905,000	820,000
Unfunded pension plan obligations	14,900,000	15,300,000
Benefit Payments to be Made From the Non-qualified Pension Plan [Abstract]
2014	1,005,000
2015	1,015,000
2016	1,015,000
2017	1,028,000
2018	1,096,000
Next five years thereafter	5,798,000
Cash surrender value of life insurance policies	$ 3,800,000	$ 3,600,000
Defined Contribution Plan [Abstract]
Employer matching contribution percent of employee contribution (in hundredths)	5.00%
Maximum annual contribution per employee	$ 2,500