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Note 2 - Summary of Significant Accounting Policies (Details) - USD ($) | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2019 | Mar. 31, 2018 | Jan. 01, 2019 | Dec. 31, 2018
Note 2 - Summary of Significant Accounting Policies (Details) [Line Items] |  |  |  |
Operating Lease, Right-of-Use Asset | $ 3,025,279 |  | $ 3,130,000 | $ 0
Operating Lease, Liability | 3,025,279 |  | $ 3,130,000 |
Accounts Receivable, Credit Loss Expense (Reversal) | (169,432) | $ 321,970 |  |
Research and Development Expense | 16,521 | 65,589 |  |
Income Tax Expense (Benefit) | (104,919) | 247,257 |  |
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued | 643,000 |  |  | 619,000
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense | 24,000 | 32,000 |  |
Unrecognized Tax Benefits | 722,013 |  |  | 722,054
Deferred Tax Liabilities, Other | 2.01 |  |  | 2.01
Revenues | $ 10,660,808 | $ 22,303,472 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number (in Shares) | 889,967 | 821,534 |  |
Number of Operating Segments | 1 |  |  |
Customer Concentration Risk [Member] |  |  |  |
Note 2 - Summary of Significant Accounting Policies (Details) [Line Items] |  |  |  |
Accounts Receivable, before Allowance for Credit Loss, Current | $ 6,278,074 | $ 7,852,123 |  |
Customer Concentration Risk [Member] | Revenue Benchmark [Member] |  |  |  |
Note 2 - Summary of Significant Accounting Policies (Details) [Line Items] |  |  |  |
Concentration Risk, Percentage | 59.00% | 43.00% |  |
Supplier Concentration Risk [Member] | Cost of Goods and Service Benchmark [Member] |  |  |  |
Note 2 - Summary of Significant Accounting Policies (Details) [Line Items] |  |  |  |
Concentration Risk, Percentage | 84.00% | 93.00% |  |
Accounts Receivable, before Allowance for Credit Loss | $ 5,607,077 | $ 10,401,410 |  |
Accounts Payable | 111,351 | 345,144 |  |
Continuing Operations [Member] |  |  |  |
Note 2 - Summary of Significant Accounting Policies (Details) [Line Items] |  |  |  |
Accounts Receivable, Credit Loss Expense (Reversal) | (169,432) |  |  |
Unrecognized Tax Benefits | 1,370,000 |  |  | $ 1,340,000
Advertising Expense | $ 17,072 | $ 192,579 |  |
Warrant [Member] |  |  |  |
Note 2 - Summary of Significant Accounting Policies (Details) [Line Items] |  |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in Shares) | 3 | 858,334 |  |
Restricted Stock [Member] |  |  |  |
Note 2 - Summary of Significant Accounting Policies (Details) [Line Items] |  |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in Shares) | 90,000 |  |  |
Diamond Bar [Member] |  |  |  |
Note 2 - Summary of Significant Accounting Policies (Details) [Line Items] |  |  |  |
Goodwill, Impairment Loss | $ 0 | $ 0 |  |
Major Vendor A [Member] | Customer Concentration Risk [Member] | Revenue Benchmark [Member] |  |  |  |
Note 2 - Summary of Significant Accounting Policies (Details) [Line Items] |  |  |  |
Concentration Risk, Percentage |  | 27.00% |  |
Major Customer B [Member] | Customer Concentration Risk [Member] | Revenue Benchmark [Member] |  |  |  |
Note 2 - Summary of Significant Accounting Policies (Details) [Line Items] |  |  |  |
Concentration Risk, Percentage |  | 16.00% |  |
Major Vendor A [Member] | Supplier Concentration Risk [Member] | Cost of Goods and Service Benchmark [Member] |  |  |  |
Note 2 - Summary of Significant Accounting Policies (Details) [Line Items] |  |  |  |
Concentration Risk, Percentage | 34.00% | 39.00% |  |
Major Vendor B [Member] | Supplier Concentration Risk [Member] | Cost of Goods and Service Benchmark [Member] |  |  |  |
Note 2 - Summary of Significant Accounting Policies (Details) [Line Items] |  |  |  |
Concentration Risk, Percentage | 25.00% | 32.00% |  |
Major Vendor C [Member] | Supplier Concentration Risk [Member] | Cost of Goods and Service Benchmark [Member] |  |  |  |
Note 2 - Summary of Significant Accounting Policies (Details) [Line Items] |  |  |  |
Concentration Risk, Percentage | 14.00% | 22.00% |  |
Major Vendor D [Member] | Supplier Concentration Risk [Member] | Cost of Goods and Service Benchmark [Member] |  |  |  |
Note 2 - Summary of Significant Accounting Policies (Details) [Line Items] |  |  |  |
Concentration Risk, Percentage | 11.00% |  |  |
Shipping and Handling [Member] |  |  |  |
Note 2 - Summary of Significant Accounting Policies (Details) [Line Items] |  |  |  |
Revenues | $ 409 | $ 184 |  |

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