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SIGNIFICANT ACCOUNTING POLICIES - NARRATIVE (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Accounting Policies [Abstract] |  |  |
Credit terms, billing term, lower limit | 10 days |  |
Credit terms, billing term, upper limit | 60 days |  |
Sales volume discounts | $ 600 | $ 300 | $ 600
Allowances for doubtful accounts | 118 | 192 |
Revenue, Major Customer [Line Items] |  |  |
Changes in excess and obsolete inventory | 200 | 200 | 2,000
Brand name and trademark | 1,510 | 1,510 |
Shipping and handling costs | 200 | 100 | 100
Advertising Expense | 700 | 500 | 500
Research and development costs | $ 2,618 | $ 2,160 | $ 1,416
Customer concentration risk |  |  |
Revenue, Major Customer [Line Items] |  |  |
Concentration risk, customer | ten |  |
Trade receivable |  |  |
Revenue, Major Customer [Line Items] |  |  |
Concentration receivable risk (as a percent) | 42.90% | 48.00% |
Net Revenue |  |  |
Revenue, Major Customer [Line Items] |  |  |
Concentration receivable risk (as a percent) | 54.40% | 58.30% | 61.00%
Net Revenue | National Distribution & Contracting Inc. |  |  |
Revenue, Major Customer [Line Items] |  |  |
Concentration receivable risk (as a percent) | 9.80% | 13.30% | 13.90%
Net Revenue | McKesson |  |  |
Revenue, Major Customer [Line Items] |  |  |
Concentration receivable risk (as a percent) | 15.90% | 18.60% |

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- Definition Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 720 -SubTopic 35 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6420018&loc=d3e36677-107848 + Details
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