ACQUISITIONS - Narrative (Details) - USD ($) $ in Thousands				3 Months Ended		6 Months Ended		21 Months Ended
	Apr. 01, 2016	Oct. 30, 2015	Jun. 30, 2014	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Mar. 31, 2016
Business Acquisition [Line Items]
Cash purchase price paid at closing						$ 2,155	$ 0
Acquisition-related contingent consideration				$ 183	$ 0	470	$ 0
Mediscan [Member]
Business Acquisition [Line Items]
Cash purchase price paid at closing		$ 29,900
Cash consideration negotiated		28,000
Fair value of shares		$ 4,700
Fair value of shares (in shares)		349,871
Contingent consideration, range of outcomes, high		$ 7,000
Contingent purchase price liabilities				$ 4,100		$ 4,100
Medical Staffing Network [Member]
Business Acquisition [Line Items]
Contingent purchase price liabilities			$ 2,500
Period of deferred consideration (in months)			21 months
Additional exit liabilities								$ 400
Acquisition-related contingent consideration	$ (2,100)