Note 2 - Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2018

Note 2 - Summary of Significant Accounting Policies (Tables) [Line Items]

Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]

A reconciliation of the January 1, 2018 through March 31, 2018, amount of unrecognized tax benefits excluding interest and penalties (“Gross UTB”) is as follows:

	Gross UTB

Balance – January 1, 2018 and March 31, 2018	$	1,428,561

Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]

Amounts determined to be uncollectible are charged or written-off against the reserve. An analysis of the allowance for doubtful accounts is as follows:

Balance at January 1, 2018	$	218,976
Provision for the period		321,970

Balance at March 31, 2018	$	540,946

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

The following table presents a reconciliation of basic and diluted earnings (loss) per share for the three months ended March 31, 2018 and 2017:

	Three Months Ended March 31,
	2018		2017

Net income (loss)	$	1,655,021	$	(1,209,390	)

Weighted average shares outstanding – basic*		28,253,115		27,345,106
Dilutive stock options and unvested restricted stock		440,364		-
Weighted average shares outstanding – diluted		28,693,479		27,345,106

Income (loss) per share
– basic	$	0.06	$	(0.04	)
– diluted	$	0.06	$	(0.04	)

* Including 821,534 and 466,967 shares that were granted and vested but not yet issued for the three months ended March 31, 2018 and 2017, respectively.

Property Plant and Equipment Estimated Useful Lives [Member]

Note 2 - Summary of Significant Accounting Policies (Tables) [Line Items]

Property, Plant and Equipment [Table Text Block]

Depreciation of property and equipment is provided using the straight-line method for substantially all assets with 10% salvage value and estimated lives as follows:

Computer and office equipment	5 years
Decoration and renovation	10 years