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Note 9 - Retirement Plans | 12 Months Ended
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Dec. 31, 2018
Notes to Financial Statements |
Pension and Other Postretirement Benefits Disclosure [Text Block] | 9. Retirement Plans The Company has a 401 (k) Profit Sharing Plan covering substantially all eligible domestic employees. The Company made a contribution of $50,000 for the year ended December 31, 2017 and did not make a contribution in 2018.

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- Definition The entire disclosure for pension and other postretirement benefits. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -URI http://asc.fasb.org/topic&trid=2235017 + Details
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