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Note 2 - Summary of Significant Accounting Policies (Details) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Note 2 - Summary of Significant Accounting Policies (Details) [Line Items]
Property, Plant and Equipment, Salvage Value, Percentage	10.00%
Research and Development Expense	$ 65,589	$ 0
Income Tax Expense (Benefit)	$ 247,257	(170,019)
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%		35.00%
Effective Income Tax Rate Reconciliation Tax Cut and Jobs Act			$ 3,370,000
Income Tax (Expense) Benefit, Continuing Operations, Estimated One-time Transition Tax on Post-1986 Foreign Unremitting Earnings			3,270,000
Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability			90,000
Unrecognized Tax Benefits	$ 1,428,561		2,000,000
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	631,000,000		599,000
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense	32,000,000	33,000
Deferred Tax Liabilities, Other			$ 2,500,000
Provision for Doubtful Accounts	$ 321,970
Provision for Doubtful Accounts, Reversal		$ 324,684
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number (in Shares)	821,534	466,967
Number of Operating Segments	1
Diamond Bar [Member]
Note 2 - Summary of Significant Accounting Policies (Details) [Line Items]
Goodwill, Impairment Loss	$ 0	$ 0
Customer Concentration Risk [Member]
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Accounts Receivable, Gross, Current	$ 37,674,823	$ 8,835,931
Customer Concentration Risk [Member] | Sales Revenue, Net [Member]
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Concentration Risk, Percentage	43.00%	26.00%
Customer Concentration Risk [Member] | Major Custom A [Member] | Sales Revenue, Net [Member]
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Concentration Risk, Percentage	27.00%	13.00%
Customer Concentration Risk [Member] | Major Customer B [Member] | Sales Revenue, Net [Member]
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Concentration Risk, Percentage	16.00%	14.00%
Supplier Concentration Risk [Member] | Cost of Goods, Total [Member]
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Concentration Risk, Percentage	93.00%	89.00%
Accounts Receivable, Gross	$ 10,401,410	$ 20,981,900
Accounts Payable	$ 345,144	$ 186,772
Supplier Concentration Risk [Member] | Cost of Goods, Total [Member] | Major Vendor A [Member]
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Concentration Risk, Percentage	39.00%	33.00%
Supplier Concentration Risk [Member] | Cost of Goods, Total [Member] | Major Vendor B [Member]
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Concentration Risk, Percentage	32.00%	25.00%
Supplier Concentration Risk [Member] | Cost of Goods, Total [Member] | Major Vendor C [Member]
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Concentration Risk, Percentage	22.00%	18.00%
Supplier Concentration Risk [Member] | Cost of Goods, Total [Member] | Major Vendor D [Member]
Note 2 - Summary of Significant Accounting Policies (Details) [Line Items]
Concentration Risk, Percentage		13.00%
Continuing Operations [Member]
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Unrecognized Tax Benefits	$ 2.1
Advertising Expense	$ 192,579	$ 537,579
Warrant [Member]
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Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in Shares)	858,334
Shipping and/or Handling [Member]
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Cost of Goods and Services Sold	$ 184	$ 305

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to Tax Cut and Jobs Act.

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