ACQUISITIONS, GOODWILL, AND ACQUIRED INTANGIBLE ASSETS Narrative (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended			12 Months Ended
	Sep. 30, 2016	Mar. 31, 2016	Sep. 30, 2015	Sep. 30, 2016	Mar. 31, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Business Acquisition [Line Items]
Amortization expense, intangible assets	$ 1,000		$ 354	$ 3,193		$ 443	$ 3,444	$ 563
Increase (decrease) in goodwill				(689)
Net sales of acquiree since acquisition date	3,900			10,500
Operating loss of acquiree since acquisition date	3,000			9,200
Common stock issued in business combination				0		$ 18,149	$ 0	$ 18,149
Cirrus Technologies LLC
Business Acquisition [Line Items]
Purchase price (excluding cash acquired)					$ 29,700
Payments to acquire business					$ 11,600
Cash acquired		$ 2,200
Number of common shares issued in business combination (in shares)					908,364
Common stock issued in business combination					$ 18,100
Cirrus Technologies, SpeedRoute, And Pro Securities [Member]
Business Acquisition [Line Items]
Amortization expense, intangible assets	$ 1,000			3,200
Common stock issued in business combination					$ 18,149
SpeedRoute and Pro Securities [Member]
Business Acquisition [Line Items]
Measurement period adjustment for cash acquired				(1,200)
Measurement period adjustment for accounts receivable and other assets				1,900
Measurement period adjustment for liabilities assumed				$ (2,500)