Related Party Transactions (Details)						3 Months Ended		12 Months Ended
	Mar. 02, 2017 USD ($)	Feb. 02, 2017 $ / shares shares	Jul. 15, 2016	Mar. 17, 2016 USD ($)	Oct. 14, 2015 USD ($) period	Mar. 31, 2018 USD ($) $ / shares shares	Mar. 31, 2017 USD ($)	Dec. 31, 2017 USD ($) $ / shares shares	Dec. 31, 2016 USD ($)	Feb. 21, 2017 shares	Feb. 20, 2017 shares	Jan. 31, 2017 $ / shares shares	Apr. 29, 2016 $ / shares	Feb. 08, 2016 USD ($) $ / shares
Restructuring Cost and Reserve [Line Items]
Subscription agreement, incentive compensation of common stock value (in dollars per share) | $ / shares														$ 10.00
Closing price of common stock (in dollars per share) | $ / shares														$ 6.5
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						$ 300,000		$ 700,000
Connected Data, Inc.
Restructuring Cost and Reserve [Line Items]
Consideration transferred					$ 6,700,000
Additional contingent compensation						300,000
Number of periods to achieve revenue targets | period					3
Target period duration					6 months
Payments under agreement						0
Clinton Group
Restructuring Cost and Reserve [Line Items]
Subscription agreement, cash managed				$ 35,000,000										$ 20,000,000
Short term investments						200,000		400,000
Clinton Group | Other (income) expense
Restructuring Cost and Reserve [Line Items]
Unrealized holding gain							$ 100,000
Madison Avenue Capital Holdings, Inc.
Restructuring Cost and Reserve [Line Items]
Closing price of common stock (in dollars per share) | $ / shares		$ 8.10
Stock issued (in shares) | shares		1,250,000
Lock-up period		3 years
Services Agreement
Restructuring Cost and Reserve [Line Items]
Consulting fees paid						625,000
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						125,000	$ 125,000
Maximum
Restructuring Cost and Reserve [Line Items]
Subscription agreement, incentive compensation of common stock value (in dollars per share) | $ / shares													$ 18.0
Minimum
Restructuring Cost and Reserve [Line Items]
Subscription agreement, incentive compensation of common stock value (in dollars per share) | $ / shares													$ 10.00
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
Affiliated Entity | Payment of performance fees | Clinton Group
Restructuring Cost and Reserve [Line Items]
Related party transaction, amounts of transaction									$ 500,000
Director
Restructuring Cost and Reserve [Line Items]
Consulting fees paid					$ 184,000
Additional contingent compensation					$ 260,000
Number of periods to achieve revenue targets | period					3
Target period duration					6 months
Payments under agreement						$ 0