COMMITMENTS AND CONTINGENCIES (Details) $ in Thousands		12 Months Ended
	Mar. 12, 2015 $ / violation	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Increase in royalties payable		$ 391	$ 400	$ 400
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2016		1,956
2017		1,893
2018		1,640
2019		1,546
2020		1,541
Thereafter		4,581
Total operating lease, future minimum payments		13,157
Rent expense		2,000	$ 1,900	$ 1,800
Loss Contingencies [Line Items]
Warranty reserve		400
Inventories
Recorded Unconditional Purchase Obligation [Line Items]
Annual minimum inventory purchases		$ 400
Minimum | Illinois Junk Fax Litigation
Loss Contingencies [Line Items]
Estimate of possible loss, charge per violation | $ / violation	500