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Note 8 - Restructuring - Accrued Restructuring Costs (Details) (USD $)	3 Months Ended
	Mar. 31, 2015
Balance at December 31, 2014	$ 70,000us-gaap_RestructuringReserve
(Credit) charge for restructuring	(6,000)us-gaap_RestructuringCharges
Payments	(64,000)us-gaap_PaymentsForRestructuring
Balance at March 31, 2015	0us-gaap_RestructuringReserve
Facility Closing [Member]
Balance at December 31, 2014	42,000
(Credit) charge for restructuring	0
Payments	(42,000)
Balance at March 31, 2015	0
Employee Relocation [Member]
Balance at December 31, 2014	28,000
(Credit) charge for restructuring	(9,000)
Payments	(19,000)
Balance at March 31, 2015	0
Employee Severance [Member]
Balance at December 31, 2014	0
(Credit) charge for restructuring	3,000
Payments	(3,000)
Balance at March 31, 2015	$ 0

- Definition

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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