STATEMENTS OF CASH FLOWS Table 2 (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Cash flows related to interest and income tax
Cash paid for interest	$ 890	$ 736	$ 684
Cash refunded for income tax, net	$ (900)	$ (50)	$ (1,149)

The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4297-108586

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Balance Type:	credit
Period Type:	duration