Intangible Assets (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets	$ 150	$ 110	$ 359	$ 331
2019	604		604
2020	983		983
2021	983		983
2022	498		498
2023	164		164
Acquisition cash payment			3,000
Gateway Giving, LLC [Member]
Finite-Lived Intangible Assets [Line Items]
Recorded intangible assets	5,300		5,300
Acquisition cash payment			3,000
Amount of earnout			4,000
Estimated earnout amount			2,300
Customer Lists [Member]
Finite-Lived Intangible Assets [Line Items]
Recorded intangible assets	325		$ 325
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
Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets amortization period			18 years
Software [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets amortization period			3 years
Recorded intangible assets	1,500		$ 1,500
Other [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets amortization period			15 years
Goodwill [Member]
Finite-Lived Intangible Assets [Line Items]
Recorded intangible assets	3,325		$ 3,325
Non-compete Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Recorded intangible assets	$ 150		$ 150
Non-compete Agreements [Member] | Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets amortization period			2 years
Non-compete Agreements [Member] | Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets amortization period			5 years