Note 7 - Earnings Per Share - Earnings Per Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Basic net loss per share:
Net loss	$ (1,509)us-gaap_NetIncomeLoss	$ (1,016)us-gaap_NetIncomeLoss
Weighted average common shares outstanding (in shares)	8,394,000	7,011,000
Basic net loss per share (in dollars per share)	$ (0.18)us-gaap_EarningsPerShareBasic	$ (0.14)us-gaap_EarningsPerShareBasic
Diluted net loss per share:
Net loss	$ (1,509)us-gaap_NetIncomeLoss	$ (1,016)us-gaap_NetIncomeLoss
Weighted average common shares outstanding (in shares)	8,394,000	7,011,000
Weighted average common shares outstanding – assuming dilution (in shares)	8,394,000	7,011,000
Diluted net loss per share (in dollars per share)	$ (0.18)us-gaap_EarningsPerShareDiluted	$ (0.14)us-gaap_EarningsPerShareDiluted
Employee Stock Option [Member]
Diluted net loss per share:
Dilutive stock options (in shares)	0	0
Equity Option [Member]
Diluted net loss per share:
Outstanding stock options that were not included in the diluted calculation because their effect would be anti-dilutive (in shares)	388,000	392,000

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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