SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Fair Value of Financial Instruments (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Aug. 07, 2015	Dec. 31, 2014
Liabilities:
Transfers of financial assets between Level 1 and Level 2			$ 0
Transfers of financial assets between Level 2 and Level 1			0
Contingent acquisition liability	$ 4,825,000	$ 4,085,000	4,019,000		$ 4,825,000
Change in the contingent consideration liability
Beginning Balance	4,825,000	4,085,000
Payment of contingent consideration	(2,322,000)	(1,633,000)
Acquisition			986,000		1,989,000
Change in fair value of contingent consideration	468,000	579,000
Accretion of contingent consideration	259,000	290,000
Impact of currency translation	(197,000)	(485,000)
Ending Balance	4,019,000	$ 4,825,000
Saugatuck Technology Inc.
Liabilities:
Contingent acquisition liability	1,100,000		1,100,000	$ 986,000
Change in the contingent consideration liability
Ending Balance	$ 1,100,000
Minimum
Liabilities:
Discounted rate of cash outflow projections (as a percent)	2.30%
Incremental borrowing rate used to discount future cash flows from financial instruments (as a percent)	2.46%
Maximum
Liabilities:
Discounted rate of cash outflow projections (as a percent)	14.50%
Incremental borrowing rate used to discount future cash flows from financial instruments (as a percent)	2.74%
Recurring
Assets:
Cash equivalents			20,000		20,000
Total			20,000		20,000
Liabilities:
Contingent consideration			4,019,000		4,825,000
Long-term debt , including current portion			50,829,000		53,412,000
Total			54,848,000		58,237,000
Recurring | Level 1
Assets:
Cash equivalents			20,000		20,000
Total			20,000		20,000
Recurring | Level 3
Liabilities:
Contingent consideration			4,019,000		4,825,000
Long-term debt , including current portion			50,829,000		53,412,000
Total			$ 54,848,000		$ 58,237,000