Related Party Transactions Fundamental Global Investors, LLC (Details) - USD ($)	3 Months Ended				9 Months Ended	12 Months Ended
	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2018	Dec. 31, 2017
Related Party Transaction [Line Items]
Proceeds from Sale of Equity Method Investments					$ 4,113,000
Due to Related Parties	$ 300,000				$ 300,000
Beneficial Owner [Member]
Related Party Transaction [Line Items]
Sale of Stock, Number of Shares Issued in Transaction				900,000		475,428
Share Price	$ 7.13			$ 7.85	$ 7.13	$ 7.85
Proceeds from Sale of Treasury Stock						$ 3,700,000
Management [Member]
Related Party Transaction [Line Items]
Effect on Future Cash Flows, Amount		$ 1,000,000
Common Stock [Member] | Beneficial Owner [Member]
Related Party Transaction [Line Items]
Effect on Future Cash Flows, Amount						$ 7,100,000
Stockholders' Equity, Other Shares			75,000
Proceeds from Sale of Equity Method Investments	$ 500,000		$ 3,400,000
Common Stock [Member] | Management [Member]
Related Party Transaction [Line Items]
Stockholders' Equity, Other Shares				424,572
Canada, Dollars | Common Stock [Member] | Beneficial Owner [Member]
Related Party Transaction [Line Items]
Share Price	$ 0.72				$ 0.72
Stockholders' Equity, Other Shares	1,813,889
Proceeds from Sale of Equity Method Investments	$ 1,300,000