Related Party Transactions (Details) - USD ($)				3 Months Ended	6 Months Ended		12 Months Ended
	Mar. 02, 2017	Feb. 02, 2017	Jul. 15, 2016	Jun. 30, 2018	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017	Jan. 31, 2017
Restructuring Cost and Reserve [Line Items]
Common stock, shares authorized (in shares)				10,000,000	10,000,000		10,000,000	1,500,000
Common stock, par value (in dollars per share)				$ 0.01	$ 0.01		$ 0.01	$ 0.01
Stock issued (in shares)		1,250,000
Short term investments				$ 0	$ 0		$ 700,000
Madison Avenue Capital Holdings, Inc.
Restructuring Cost and Reserve [Line Items]
Stock issued (in shares)		1,250,000
Closing price of common stock (in dollars per share)		$ 8.10
Lock-up period		3 years
Clinton Group
Restructuring Cost and Reserve [Line Items]
Short term investments				0	0		400,000
Clinton Group | Other (income) expense
Restructuring Cost and Reserve [Line Items]
Unrealized holding gain (less than)				$ 100,000	100,000
Services Agreement
Restructuring Cost and Reserve [Line Items]
Consulting fees paid					750,000
Initial term compensation	$ 125,000
Renewal period	3 months
Renewal term compensation	$ 125,000
Services Agreement | Selling, general and administrative
Restructuring Cost and Reserve [Line Items]
Consulting fees paid					$ 250,000	$ 166,668
President | Realization Services, Inc.
Restructuring Cost and Reserve [Line Items]
Consulting services extension term			21 days
Affiliated Entity | Consulting Expenses with Realization Services | Realization Services, Inc.
Restructuring Cost and Reserve [Line Items]
Consulting fees paid							$ 600,000