Intangible Assets (Narrative) (Details) - USD ($)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets	$ 102,000	$ 101,000
2016	407,000
2017	356,000
2018	356,000
2019	356,000
2020	$ 356,000
Customer Lists [Member] | Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets amortization period	7 years
Customer Lists [Member] | Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets amortization period	10 years
Patent [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets amortization period	18 years
Non-compete Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets amortization period	5 years
Software [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets amortization period	3 years
Other [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets amortization period	15 years