Related Party Transactions - Additional Information (Details)						1 Months Ended	12 Months Ended
	Mar. 02, 2017 USD ($)	Feb. 02, 2017 $ / shares shares	Jul. 15, 2016 USD ($)	Mar. 17, 2016 USD ($)	Oct. 14, 2015 USD ($) period	Jan. 31, 2016	Dec. 31, 2017 USD ($) $ / shares shares	Dec. 31, 2016 USD ($) $ / shares shares	Feb. 21, 2017 shares	Feb. 20, 2017 shares	Jan. 31, 2017 $ / shares shares	Apr. 29, 2016 $ / shares	Feb. 08, 2016 USD ($) $ / shares
Related Party Transaction [Line Items]
Maximum percentage of excess cash approved for short-term investment						25.00%
Subscription agreement, incentive compensation of common stock value (in dollars per share) | $ / shares													$ 10.00
Share price (in dollars per share) | $ / shares													$ 6.50
Cash investment limitation				25.00%
Common stock, shares authorized (in shares) | shares							10,000,000	10,000,000	10,000,000	100,000,000	1,500,000
Common stock, par value (in dollars per share) | $ / shares							$ 0.01	$ 0.01			$ 0.01
Stock issued (in shares) | shares		1,250,000
Short term investments							$ 700,000	$ 22,000,000
President
Related Party Transaction [Line Items]
Related party transaction amount			$ 500,000
Director
Related Party Transaction [Line Items]
Expenses from transactions with related party					$ 184,000
Additional possible contingent compensation					$ 260,000
Number of periods to achieve revenue targets | period					3
Duration of target periods					6 months
Services Agreement
Related Party Transaction [Line Items]
Expenses from transactions with related party							500,000
Initial term compensation	$ 125,000
Renewal period	3 months
Renewal term compensation	$ 125,000
Selling, general and administrative | Services Agreement
Related Party Transaction [Line Items]
Expenses from transactions with related party							416,668
Maximum
Related Party Transaction [Line Items]
Subscription agreement, incentive compensation of common stock value (in dollars per share) | $ / shares												$ 18.00
Maximum | President
Related Party Transaction [Line Items]
Consulting fees per week			$ 125,000
Minimum
Related Party Transaction [Line Items]
Subscription agreement, incentive compensation of common stock value (in dollars per share) | $ / shares												$ 10.00
Realization Services, Inc. | President
Related Party Transaction [Line Items]
Consulting services extension term			21 days
Realization Services, Inc. | Consulting Expenses with Realization Services | Affiliated Entity
Related Party Transaction [Line Items]
Expenses from transactions with related party							600,000	2,400,000
Clinton Group
Related Party Transaction [Line Items]
Subscription agreement, cash managed				$ 35,000,000									$ 20,000,000
Short term investments							400,000	19,500,000
Decrease in short-term investment balance							19,100,000
Redemptions							18,700,000
Clinton Group | Payment of Performance Fees | Affiliated Entity
Related Party Transaction [Line Items]
Related party transaction, amounts of transaction								500,000
Clinton Group | Other income (expense), net
Related Party Transaction [Line Items]
Unrealized holding loss							400,000	4,500,000
Performance fees								$ 500,000
Madison Avenue Capital Holdings, Inc.
Related Party Transaction [Line Items]
Share price (in dollars per share) | $ / shares		$ 8.10
Stock issued (in shares) | shares		1,250,000
Lock-up period		3 years
Connected Data, Inc.
Related Party Transaction [Line Items]
Consideration transferred					$ 6,700,000
Additional possible contingent compensation							$ 300,000
Number of periods to achieve revenue targets | period					3
Duration of target periods					6 months