Debt - Additional Information (Details)							1 Months Ended		3 Months Ended	4 Months Ended	6 Months Ended
	Mar. 15, 2018 USD ($)	Aug. 08, 2017 USD ($) $ / shares shares	May 11, 2017 USD ($) lease yr guarantor $ / shares shares	May 10, 2017 USD ($)	Apr. 29, 2016 USD ($)	Apr. 17, 2015 USD ($) yr shares	Apr. 30, 2018 USD ($)	Mar. 31, 2018 USD ($)	Jun. 30, 2018 USD ($) credit_facility	May 24, 2017 USD ($) $ / shares shares	Jun. 30, 2018 USD ($) credit_facility	Jun. 30, 2017 USD ($)	Jun. 01, 2018 USD ($)	May 10, 2018 USD ($)	Dec. 31, 2017 USD ($)	May 12, 2017 USD ($)	Nov. 15, 2016 USD ($)	Aug. 15, 2016 $ / shares
Debt [Line Items]
Number of primary credit facilities | credit_facility									2		2
Long-term debt									$ 18,583,000		$ 18,583,000				$ 19,314,000
Number of overdraft credit facilities | credit_facility									2		2
Value of stock issued											$ 23,000
Issuance of warrant to Century in connection with the Merger											0	$ 152,000
Capital Leases									$ 23,000		23,000				107,000
Short-term Debt
Debt [Line Items]
Capital Leases									20,000		20,000
Provant
Debt [Line Items]
Business combinations, line of credit															4,684,000
Subordinated promissory note															1,917,000
Number of capital leases | lease			2
2017 Public Offering Warrant | Provant
Debt [Line Items]
Warrants strike price (in dollars per share) | $ / shares										$ 1.35
Stocks issued (in shares) | shares										4,375,000
Value of stock issued										$ 3,400,000
Sale of stock, price per share (in dollars per share) | $ / shares			$ 0.80
Number of shares to be purchased under warrant (in shares) | shares			2
A&R Warrant | Provant
Debt [Line Items]
Warrants strike price (in dollars per share) | $ / shares			$ 0.84
Stocks issued (in shares) | shares			1,300,000
August 2017 Term Loan | Line of Credit | Provant
Debt [Line Items]
Line of credit facility, maximum borrowing capacity									2,000,000		2,000,000
Line of Credit | Seasonal Facility | Provant | Guarantor Subsidiaries
Debt [Line Items]
Line of credit facility, maximum borrowing capacity									2,000,000.0		2,000,000.0					$ 2,000,000.0
Number of guarantors | guarantor			1
Interest payment amount as percentage of outstanding balance (as percent)			25.00%
Line of Credit | Seasonal Facility | 10% Warrant
Debt [Line Items]
Option indexed to issue shares (in shares) | shares			326,052
Warrants strike price (in dollars per share) | $ / shares			$ 0.6134
Line of Credit | Seasonal Facility | 90% Contingent Warrant
Debt [Line Items]
Option indexed to issue shares (in shares) | shares			2,934,468
Warrants strike price (in dollars per share) | $ / shares			$ 0.6134
Exercisable period of warrants			7 years
Line of Credit | Seasonal Facility | Century Warrants | Expected Volatility Rate
Debt [Line Items]
Debt instrument, measurement input			0.806
Line of Credit | Seasonal Facility | Century Warrants | Expected Risk Free Interest Rate
Debt [Line Items]
Debt instrument, measurement input			0.0222
Line of Credit | Seasonal Facility | Century Warrants | Expected Dividend Rate
Debt [Line Items]
Debt instrument, measurement input			0
Line of Credit | Seasonal Facility | Century Warrants | Expected Term
Debt [Line Items]
Debt instrument, measurement input | yr			7
Line of Credit | Seasonal Facility | 2017 Public Offering Warrant
Debt [Line Items]
Option indexed to issue shares (in shares) | shares			2,187,500
Exercisable period of warrants			4 years
Line of Credit | Seasonal Facility | A&R Warrant | Expected Volatility Rate
Debt [Line Items]
Debt instrument, measurement input			0.806
Line of Credit | Seasonal Facility | A&R Warrant | Expected Risk Free Interest Rate
Debt [Line Items]
Debt instrument, measurement input			0.0222
Line of Credit | Seasonal Facility | A&R Warrant | Expected Dividend Rate
Debt [Line Items]
Debt instrument, measurement input			0
Line of Credit | Seasonal Facility | A&R Warrant | Expected Term
Debt [Line Items]
Debt instrument, measurement input | yr			7
Line of Credit | 2016 Credit and Security Agreement
Debt [Line Items]
Long-term debt									5,766,000		5,766,000				10,015,000
Line of credit facility, maximum borrowing capacity				$ 7,000,000
Debt instrument term					3 years
Borrowings outstanding									5,800,000		5,800,000
Debt instrument, fee amount					$ 100,000
Commitment fee, percentage (as percent)					0.50%
Collateral fee (as percent)					0.50%
Line of Credit | 2016 Credit and Security Agreement | Prime rate
Debt [Line Items]
Spread on variable rate (as percent)					4.50%
Line of Credit | 2016 Credit and Security Agreement | Other Assets
Debt [Line Items]
Debt issuance costs, gross					$ 100,000
Deferred issuance costs, net									200,000		200,000
Line of Credit | 2016 Credit and Security Agreement | Provant
Debt [Line Items]
Line of credit facility, maximum borrowing capacity			$ 10,000,000
Line of credit facility, capacity available during high-volume months			15,000,000.0
Line of Credit | Term Loans
Debt [Line Items]
Cross-default provision on amount of debt outstanding						$ 250,000
Term Loans
Debt [Line Items]
Deb face amount									8,250,000		8,250,000				8,500,000
Term Loans | August 2017 Term Loan
Debt [Line Items]
Long-term debt		$ 2,000,000
Debt instrument, fee amount		30,000
Deb face amount			2,000,000.0
Debt balance in default							$ 250,000
Term Loans | August 2017 Term Loan | Payment by November 30, 2017
Debt [Line Items]
Debt exit fees		140,000
Term Loans | August 2017 Term Loan | Payment after November 30, 2017
Debt [Line Items]
Debt exit fees		$ 280,000
Term Loans | August 2017 Term Loan | August Warrant
Debt [Line Items]
Exercise price of warrant (in dollars per share) | $ / shares		$ 0.80
Issuance of warrant to Century in connection with the Merger		$ 200,000
Number of warrants to purchase shares issued (in shares) | shares		450,000
Term Loans | August 2017 Term Loan | August Warrant | Expected Volatility Rate
Debt [Line Items]
Debt instrument, measurement input		0.793
Term Loans | 2013 Loan and Security Agreement | Warrant 2
Debt [Line Items]
Value of warrant to be issued is debt instrument is not paid					$ 1,250,000
Term Loans | Term Loans
Debt [Line Items]
Long-term debt									11,860,000		11,860,000				8,500,000
Line of credit facility, maximum borrowing capacity				3,700,000
Debt instrument, fee amount															97,500
Deferred issuance costs, net									174,000		174,000				220,000
Deb face amount																	$ 5,000,000
Maximum quarterly principal payment			$ 500,000
Debt instrument, exit fee percentage			8.00%
Legal fees															150,000
Debt exit fees			$ 400,000
Term loan, fair value									467,000		467,000				631,000
Debt balance in default	$ 250,000						$ 250,000	$ 250,000
Term Loans | Term Loans | LIBOR
Debt [Line Items]
Spread on variable rate (as percent)			12.50%
Term Loans | Term Loans | Minimum | LIBOR
Debt [Line Items]
Spread on variable rate (as percent)			1.00%
Term Loans | Term Loans | Annual Aggregate Revenue up to and Including $20 million
Debt [Line Items]
Quarterly revenue-based payments as a percent of annual aggregate revenue (as percent)			15.00%
Term Loans | Term Loans | Annual Aggregate Revenue Greater greater than $20 million
Debt [Line Items]
Quarterly revenue-based payments as a percent of annual aggregate revenue (as percent)			10.00%
Annual aggregate revenue limit			$ 20,000,000						20,000,000
Term Loans | Term Loans | Provant
Debt [Line Items]
Long-term debt									6,500,000		6,500,000
Line of credit facility, maximum borrowing capacity			6,500,000
Deb face amount			$ 6,500,000.0
Term Loans | Term Loans | Warrant 2
Debt [Line Items]
Value of warrant to be issued is debt instrument is not paid						$ 1,250,000
Term Loans | Term Loans | Warrant 2 | Expected Volatility Rate
Debt [Line Items]
Debt instrument, measurement input						0.8
Term Loans | Term Loans | Warrant 2 | Expected Risk Free Interest Rate
Debt [Line Items]
Debt instrument, measurement input						0.021
Term Loans | Term Loans | Warrant 2 | Expected Dividend Rate
Debt [Line Items]
Debt instrument, measurement input						0
Term Loans | Term Loans | Warrant 2 | Expected Term
Debt [Line Items]
Debt instrument, measurement input | yr						7
Term Loans | Term Loans | Warrant 1
Debt [Line Items]
Exercise price of warrant (in dollars per share) | $ / shares																		$ 1.30
Number of shares to be purchased under warrant (in shares) | shares						543,479
Term Loans | Term Loans | Warrant 1 | Additional Paid-in Capital
Debt [Line Items]
Issuance of warrant to Century in connection with the Merger						$ 300,000
Term Loans | Term Loans | Warrant 1 | Expected Volatility Rate
Debt [Line Items]
Debt instrument, measurement input						0.85
Term Loans | Term Loans | Warrant 1 | Expected Risk Free Interest Rate
Debt [Line Items]
Debt instrument, measurement input						0.014
Term Loans | Term Loans | Warrant 1 | Expected Dividend Rate
Debt [Line Items]
Debt instrument, measurement input						0
Term Loans | Term Loans | Warrant 1 | Expected Term
Debt [Line Items]
Debt instrument, measurement input | yr						7
Term Loans | Term Loans | Warrants 1 and 2
Debt [Line Items]
Term loan, fair value						$ 3,600,000
Term Loans | Term Loans | A&R Warrant
Debt [Line Items]
Exercisable period of warrants						7 years
Term Loans | Term Loans | August Warrant | Expected Risk Free Interest Rate
Debt [Line Items]
Debt instrument, measurement input						0.021
Term Loans | Term Loans | August Warrant | Expected Dividend Rate
Debt [Line Items]
Debt instrument, measurement input						0
Term Loans | Term Loans | August Warrant | Expected Term
Debt [Line Items]
Debt instrument, measurement input | yr						7
Convertible Subordinated Debt | Subordinated Promissory Note | Century
Debt [Line Items]
Long-term debt				$ 2,500,000
Interest rate				8.25%
Convertible Subordinated Debt | Subordinated Promissory Note | Provant
Debt [Line Items]
Amount converted to equity				$ 400,000
Subordinated Debt | Subordinated Promissory Note
Debt [Line Items]
Long-term debt									1,575,000		1,575,000				$ 1,543,000
Interest rate				8.25%
Tax distribution interest accrual rate				40.00%
SWK | Term Loans | August 2017 Term Loan
Debt [Line Items]
Deb face amount									1,750,000.00		1,750,000.00		$ 1,750,000.00
SWK | Term Loans | Fourth Amendment Term Loan
Debt [Line Items]
Long-term debt														$ 1,500,000
SWK | Term Loans | Fifth Amendment Term Loan
Debt [Line Items]
Deb face amount													$ 5,000,000.0
Percentage of Company's actual expenses over budget													15.00%
SWK | Term Loans | May 2018 Term Loan
Debt [Line Items]
Deb face amount									$ 1,500,000.0		$ 1,500,000.0		$ 1,500,000.0	$ 1,500,000