Write Downs and Other Charges (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Impaired Assets to be Disposed of by Method Other than Sale [Line Items]
Write-downs and other charges	$ 8,753,000	$ 4,485,000	$ 3,262,000
Gain (Loss) on Disposition of Assets	(1,963,000)	(3,901,000)	(1,149,000)
Goodwill, Impairment Loss	4,828,000
Asset Impairment Charges, Including Terminated Development Agreements	1,300,000
Impairment of assets	6,089,000	584,000	4,749,000
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Asset	700,000
Gain (loss) on sale of assets		3,200,000	1,000,000
Write-off of prepaids		700,000
Impairment of intangible assets		600,000	3,300,000
Gain (Loss) on Disposition of Intangible Assets		500,000
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Other Liability		600,000
Fair value adjustments to contingent consideration and other items	$ 701,000	$ 0	0
Impairment of long-lived assets			2,000,000
Cadillac Jack [Member]
Impaired Assets to be Disposed of by Method Other than Sale [Line Items]
Fair value adjustments to contingent consideration and other items			3,000,000
Finite-lived intangible assets, gross value			1,100,000
Property and equipment			$ 0