Intangible Assets (Details) - USD ($)	1 Months Ended	3 Months Ended		6 Months Ended
	Dec. 31, 2006	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Intangible Assets [Abstract]
Amortization of intangible assets and other		$ 267,000	$ 267,000	$ 534,000	$ 535,000
Finite-lived intangible assets [Abstract]
Accumulated amortization		(6,959,000)		(6,959,000)		$ (6,425,000)
Net carrying value		510,000		510,000
Indefinite life intangible assets [Abstract]
Gross carrying value		250,000		250,000		250,000
Net carrying value		250,000		250,000		250,000
Intangible assets, total [Abstract]
Gross carrying value		7,719,000		7,719,000		7,719,000
Accumulated amortization		(6,959,000)		(6,959,000)		(6,425,000)
Net carrying value		760,000		760,000		1,294,000	[1]
Indefinite life intangibles acquired	$ 250,000
Non-compete [Member]
Finite-lived intangible assets [Abstract]
Gross carrying value		593,000		593,000		593,000
Accumulated amortization		(568,000)		(568,000)		(555,000)
Net carrying value		25,000		25,000		38,000
Intangible assets, total [Abstract]
Accumulated amortization		(568,000)		(568,000)		(555,000)
Partner Relationships [Member]
Finite-lived intangible assets [Abstract]
Gross carrying value		145,000		145,000		145,000
Accumulated amortization		(145,000)		(145,000)		(145,000)
Net carrying value		0		0		0
Intangible assets, total [Abstract]
Accumulated amortization		(145,000)		(145,000)		(145,000)
Customer Base [Member]
Finite-lived intangible assets [Abstract]
Gross carrying value		641,000		641,000		641,000
Accumulated amortization		(591,000)		(591,000)		(545,000)
Net carrying value		50,000		50,000		96,000
Intangible assets, total [Abstract]
Accumulated amortization		(591,000)		(591,000)		(545,000)
Technology Rights [Member]
Finite-lived intangible assets [Abstract]
Gross carrying value		5,330,000		5,330,000		5,330,000
Accumulated amortization		(4,921,000)		(4,921,000)		(4,474,000)
Net carrying value		409,000		409,000		856,000
Intangible assets, total [Abstract]
Accumulated amortization		(4,921,000)		(4,921,000)		(4,474,000)
Tradenames [Member]
Finite-lived intangible assets [Abstract]
Gross carrying value		760,000		760,000		760,000
Accumulated amortization		(734,000)		(734,000)		(706,000)
Net carrying value		26,000		26,000		54,000
Intangible assets, total [Abstract]
Accumulated amortization		$ (734,000)		$ (734,000)		$ (706,000)

[1] Derived from the December 31, 2015 audited Consolidated Financial Statements included in our Annual Report on Form 10-K, as filed with the Securities and Exchange Commission ("SEC") on March 7, 2016.