Note 13 - Severance Costs - Accrued Severance Liability Activity (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015	Jun. 30, 2016
Balance at	$ 39	$ 379	$ 379
Accrual of expense	173	223	469
Payments	(205)	(314)	(742)
Adjustments		(58)	(67)
Balance at	$ 7	$ 230	$ 39

Liability for amount due employees, in addition to wages and any other money that employers owe employees, when their employment ends through a layoff or other termination. For example, a company may provide involuntarily terminated employees with a lump sum payment equal to one week's salary for every year of employment.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Other Postemployment Benefits
-URI http://asc.fasb.org/extlink&oid=6519534

Name:	us-gaap_SupplementalUnemploymentBenefitsSeveranceBenefits
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant