Towerstream (TWER) 10-K 1 Apr 19 2018 FY Annual report Financial data

Document And Entity Information

Document And Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2018	Mar. 25, 2019	Jun. 30, 2018
Document Information [Line Items]
Entity Registrant Name	TOWERSTREAM CORP
Entity Central Index Key	0001349437
Trading Symbol	twer
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	No
Entity Emerging Growth Company	false
Entity Small Business	true
Entity Common Stock, Shares Outstanding (in shares)		394,409
Entity Public Float			$ 272,139
Entity Shell Company	false
Document Type	10-K
Document Period End Date	Dec. 31, 2018
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	FY
Amendment Flag	false

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($)	Dec. 31, 2018	Dec. 31, 2017
Current Assets
Cash and cash equivalents	$ 4,173,070	$ 7,568,982
Accounts receivable, net of reserves for uncollectable accounts of $154,114 and $95,884, respectively	538,103	912,333
Prepaid expenses and other current assets	600,482	242,320
Total Current Assets	5,311,655	8,723,635
Property and equipment, net	10,078,151	13,430,980
Intangible assets, net	963,210	2,242,471
Goodwill	1,674,281	1,674,281
Other assets	391,467	386,047
Total Assets	18,418,764	26,457,414
Current Liabilities
Accounts payable	175,810	1,150,861
Accrued expenses	810,352	1,622,036
Accrued interest		722,629
Deferred revenues	985,914	934,450
Current maturities of capital lease obligations	341,975	382,918
Current liabilities of discontinued operations	1,005,073	1,029,022
Deferred rent	159,020	78,048
Short-term debt (callable), net of debt discounts and deferred financing costs of $0 and $789,287, respectively	38,699,307	33,868,700
Total Current Liabilities	42,177,451	39,788,664
Long-Term Liabilities
Capital lease obligations, net of current maturities	295,747	305,947
Other	386,025	754,203
Total Long-Term Liabilities	681,772	1,060,150
Total Liabilities	42,859,223	40,848,814
Commitments (Note 16)
Stockholders' Deficit
Common stock, par value $0.001; 200,000,000 shares authorized; 394,409 shares issued and outstanding as of December 31, 2018 and 2017, respectively	394	394
Additional paid-in-capital	174,894,507	174,733,113
Accumulated deficit	(199,335,362)	(189,124,909)
Total Stockholders' Deficit	(24,440,459)	(14,391,400)
Total Liabilities, Series I Preferred Stock and Stockholders' Deficit	18,418,764	26,457,414
Series I Preferred Stock [Member]
Series I Preferred Stock
Series I Preferred – 100 and 0 shares issued and outstanding, respectively; (Liquidation value – Note 10)
Series G Convertible Preferred Stock [Member]
Stockholders' Deficit
Preferred stock	1	1
Series H Convertible Preferred Stock [Member]
Stockholders' Deficit
Preferred stock	$ 1	$ 1

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parentheticals) - USD ($)	Dec. 31, 2018	Dec. 31, 2017
Accounts receivable, reserves for uncollectable accounts	$ 154,114	$ 95,884
Debt discount, current	$ 0	$ 789,287
Preferred stock, par value (in dollars per share)	$ 0.001
Preferred stock, shares authorized (in shares)	5,000,000
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, authorized (in shares)	200,000,000	200,000,000
Common stock, issued (in shares)	394,409	394,409
Common stock, outstanding (in shares)	394,409	394,409
Series I Preferred Stock [Member]
Series I preferred stock, shares issued (in shares)	100	0
Series I preferred stock, shares outstanding (in shares)	100	0
Series G Convertible Preferred Stock [Member]
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized (in shares)	5,000,000	5,000,000
Preferred stock, shares issued (in shares)	538	538
Preferred stock, shares outstanding (in shares)	538	538
Preferred stock, liquidation value	$ 538,000	$ 538,000
Series H Convertible Preferred Stock [Member]
Preferred stock, shares issued (in shares)	501	501
Preferred stock, shares outstanding (in shares)	501	501
Preferred stock, liquidation value	$ 501,000	$ 501,000

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Revenues	$ 24,604,310	$ 26,212,550
Operating Expenses
Infrastructure and access	11,064,325	10,670,673
Depreciation and amortization	6,437,050	6,734,987
Network operations	3,210,968	4,342,392
Customer support	1,475,865	1,608,526
Sales and marketing	1,966,369	3,883,438
General and administrative	4,067,265	6,324,084
Total Operating Expenses	28,221,842	33,564,100
Operating Loss	(3,617,532)	(7,351,550)
Other Expense
Interest expense, net	(6,929,519)	(5,201,972)
Total Other Expense	(6,929,519)	(5,201,972)
Loss before income taxes	(10,547,051)	(12,553,522)
Benefit for income taxes	336,598	83,840
Net Loss	(10,210,453)	(12,469,682)
Deemed dividend to Series D and F preferred stockholders		(1,905,570)
Net loss attributable to common stockholders	$ (10,210,453)	$ (14,375,252)
Net loss per common share – Basic and diluted (in dollars per share)	$ (25.89)	$ (43.01)
Weighted average common shares outstanding – Basic and diluted (in shares)	394,409	334,234

Consolidated Statements of Stoc

Consolidated Statements of Stockholders' Deficit - USD ($)	January 9, 2017 [Member]Preferred Stock [Member]Series E Convertible Preferred Stock [Member]	January 9, 2017 [Member]Common Stock [Member]	January 9, 2017 [Member]Additional Paid-in Capital [Member]	January 26 to April 13, 2017 [Member]Preferred Stock [Member]Series F Convertible Preferred Stock [Member]	January 26 to April 13, 2017 [Member]Common Stock [Member]	January 26 to April 13, 2017 [Member]Additional Paid-in Capital [Member]	May 26, 2017 [Member]Preferred Stock [Member]Series D Convertible Preferred Stock [Member]	May 26, 2017 [Member]Preferred Stock [Member]Series F Convertible Preferred Stock [Member]	May 26, 2017 [Member]Preferred Stock [Member]Series G Convertible Preferred Stock [Member]	May 26, 2017 [Member]Preferred Stock [Member]Series H Convertible Preferred Stock [Member]	May 26, 2017 [Member]Additional Paid-in Capital [Member]	May 30 to June 29, 2017 [Member]Preferred Stock [Member]Series H Convertible Preferred Stock [Member]	May 30 to June 29, 2017 [Member]Common Stock [Member]	May 30 to June 29, 2017 [Member]Additional Paid-in Capital [Member]	June 30 to August 22, 2017 [Member]Preferred Stock [Member]Series G Convertible Preferred Stock [Member]	June 30 to August 22, 2017 [Member]Common Stock [Member]	June 30 to August 22, 2017 [Member]Additional Paid-in Capital [Member]	Preferred Stock [Member]Series D Convertible Preferred Stock [Member]	Preferred Stock [Member]Series E Convertible Preferred Stock [Member]	Preferred Stock [Member]Series F Convertible Preferred Stock [Member]	Preferred Stock [Member]Series G Convertible Preferred Stock [Member]	Preferred Stock [Member]Series H Convertible Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Total
Balance (in shares) at Dec. 31, 2016																		1,233	500,000	1,233			244,369
Balance at Dec. 31, 2016																		$ 2	$ 500	$ 1			$ 244	$ 173,801,022	$ (176,655,227)	$ (2,853,458)
Conversion of convertible securities, shares (in shares)	(500,000)	6,667		(590)	39,334		(1,233)	(643)	938	938		(437)	46,614		(400)	53,335
Conversion of convertible securities	$ (500)	$ 7	$ 493		$ 39	$ (39)	$ (2)	$ (1)	$ 1	$ 1	$ 1		$ 47	$ (47)		$ 53	$ (53)
Additional shares issued as a result of the rounding provisions of the reverse stock split of September 29, 2017 (in shares)																							4,060
Additional shares issued as a result of the rounding provisions of the reverse stock split of September 29, 2017																							$ 4	(4)
Stock-based compensation for options																								931,382		931,382
Issuance of common stock under employee stock purchase plan (in shares)																							30
Issuance of common stock under employee stock purchase plan																								358		358
Net loss																									(12,469,682)	(12,469,682)
Balance (in shares) at Dec. 31, 2017																					538	501	394,409
Balance at Dec. 31, 2017																					$ 1	$ 1	$ 394	174,733,113	(189,124,909)	(14,391,400)
Stock-based compensation for options																								161,394		161,394
Net loss																									(10,210,453)	(10,210,453)
Balance (in shares) at Dec. 31, 2018																					538	501	394,409
Balance at Dec. 31, 2018																					$ 1	$ 1	$ 394	$ 174,894,507	$ (199,335,362)	$ (24,440,459)

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Cash Flows From Operating Activities
Net loss	$ (10,210,453)	$ (12,469,682)
Adjustments to reconcile loss from continuing operations to net cash used in continuing operating activities:
Benefit for income taxes	(336,598)	(83,840)
Provision for doubtful accounts	141,000	122,000
Depreciation for property and equipment	5,157,789	5,324,969
Amortization for intangible assets	1,279,261	1,410,018
Amortization for debt discount and deferred financing costs	789,287	1,014,456
Interest added to note principal	4,041,320	1,366,992
Accrued interest	(722,629)	722,629
Stock-based compensation - Options	161,394	931,382
Stock-based compensation - Employee stock purchase plan		52
Loss on the sale of property, plant and equipment	42,152
Deferred rent	10,921	(256,886)
Changes in operating assets and liabilities:
Accounts receivable	233,230	(529,259)
Prepaid expenses and other current assets	(358,162)	192,124
Other assets	(10,674)	7,599
Accounts payable	(975,051)	827,236
Accrued expenses	(1,095,434)	223,319
Deferred revenues	51,464	(227,070)
Other long-term liabilities	38,471
Total Adjustments	8,447,741	11,045,721
Net Cash Used In Continuing Operating Activities	(1,762,712)	(1,423,961)
Net Cash (Used In) Provided By Discontinued Operating Activities	(23,949)	21,000
Net Cash Used In Operating Activities	(1,786,661)	(1,402,961)
Cash Flows From Investing Activities
Acquisitions of property and equipment	(1,163,513)	(2,407,877)
Proceeds from the sale of property, plant and equipment	15,000
Change in security deposits	5,254	(23,875)
Net Cash Used In Investing Activities	(1,143,259)	(2,431,752)
Cash Flows From Financing Activities
Repayments of capital lease obligations	(465,992)	(869,055)
Issuance of common stock under employee stock purchase plan		306
Net Cash Used In Financing Activities	(465,992)	(868,749)
Continuing Operations	(3,371,963)	(4,724,462)
Discontinued Operations	(23,949)	21,000
Net Decrease In Cash and Cash Equivalents	(3,395,912)	(4,703,462)
Cash and Cash Equivalents - Beginning	7,568,982	12,272,444
Cash and Cash Equivalents - Ending	4,173,070	7,568,982
Interest	2,827,969	2,104,720
Income taxes	13,311	16,436
Acquisition of property and equipment:
Under capital leases	414,849	285,603
Included in accrued expenses	36,293	320,043
Interest added to note principal	4,041,320	1,366,992
Conversion of Series D Convertible Preferred Stock into Series G Convertible Preferred Stock, and the conversion of Series F Convertible Preferred Stock into Series H Convertible Preferred Stock		$ 3

Note 1 - Organization and Natur

Note 1 - Organization and Nature of Business	12 Months Ended
	Dec. 31, 2018
Notes to Financial Statements
Nature of Operations [Text Block]	Note 1 . Organization and Nature of Business Towerstream Corporation (referred to as “Towerstream” or the “Company”) was incorporated in Delaware in December 1999. first five

Note 2 - Liquidity, Going Conce

Note 2 - Liquidity, Going Concern, and Management Plans	12 Months Ended
	Dec. 31, 2018
Notes to Financial Statements
Liquidity and Management Plans [Text Block]	Note 2 . Liquidity, Going Concern, and Management Plans The accompanying consolidated financial statements have been prepared on a going concern basis, which contemplates the realization of assets and the satisfaction of liabilities in the normal course of business. As of December 31, 2018, $4.2 $36.9 8 17 December 31, 2018, $199.3 one not The Company has monitored and reduced certain of its operating costs over the course of 2017 2018. no no may no In March 2018, no not In May 2018, $2,000,000 8 , Short-Term Debt $1,000,000 $1,000,000 $45,000,000 $55,000,000.

Note 3 - Basis of Presentation

Note 3 - Basis of Presentation and Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2018
Notes to Financial Statements
Significant Accounting Policies [Text Block]	Note 3 . Basis of Presentation and Summary of Significant Accounting Policies Basis of Presentation . Retroactive Adjustment For Reverse Stock Split September 29, 2017, 1 75 2017 Use of Estimates Cash and Cash Equivalents three Concentration of Credit Risk may not December 31, 2018, $3.9 $250,000. Accounts Receivable, Net not Property and Equipment , Net five three five three five not FCC Licenses not Long-Lived Assets may not not The FASB’s guidance on asset retirement obligations addresses financial accounting and reporting for obligations associated with the retirement of tangible long-lived assets and the associated costs. This guidance requires the recognition of an asset retirement obligation and an associated asset retirement cost when there is a legal obligation associated with the retirement of tangible long-lived assets. The Company’s network equipment is installed on both buildings in which the Company has a lease agreement and at customer locations. In both instances, the installation and removal of the Company’s equipment is not not not not Goodwill not fourth may not No 50 no December 31, 2018 2017, Fair Value of Financial Instruments three not Income Taxes not not not On December 22, 2017, 21 January 1, 2018. 740, $2,361,936 $2,232,571. Deferred Rent Advertising Costs December 31, 2018 2017 $40,000 $84,000, Stock-Based Compensation Basic and Diluted Net Loss Per Share The following common stock equivalents were excluded from the computation of diluted net loss per share of common stock because they were anti-dilutive. The exercise of these common stock equivalents would dilute earnings per share if the Company becomes profitable in the future. Years Ended December 31, 201 8 201 7 Stock options 72,807 76,601 Warrants - 2,400 Series G Convertible Preferred Stock 71,734 71,734 Series H Convertible Preferred Stock 53,440 53,440 Total 197,981 204,175 Segments one Recent Accounting Pronouncements May 2014 , No. 2014 09 2014 09 ” 2014 19 one 606, 606” 606 606 January 1, 2018 15, Revenues In February 2016, No. 2016 02 2016 02” 842 2016 02 2016 02 December 15, 2018 July 2018, No. 2018 10, 842, July 2018, No. 2018 11, 842 not January 1, 2019. not not In July 2017, No. 2017 11, 260 480 815 2017 11 two no no 260 470 20, 260 480 not December 15, 2018. December 15, 2019, December 15, 2020. not not not

Note 4 - Discontinued Operation

Note 4 - Discontinued Operations	12 Months Ended
	Dec. 31, 2018
Notes to Financial Statements
Disposal Groups, Including Discontinued Operations, Disclosure [Text Block]	Note 4 . Discontinued Operations During the fourth 2015, fourth 2015 first 2016 March 9, 2016, three two one sixty $2,660,041 $3,837,783. The components of the balance sheet accounts presented as discontinued operations were as follows: As of December 31, 201 8 201 7 Liabilities: Accrued expenses - leases $ 1,005,073 $ 1,029,022 Total Current Liabilities $ 1,005,073 $ 1,029,022 Accrued expenses represents the estimated cost of terminating the leases associated with the Hetnets business. Accordingly, disbursements associated with such activity during the year ended December 31, 2018

Note 5 - Property and Equipment

Note 5 - Property and Equipment, Net	12 Months Ended
	Dec. 31, 2018
Notes to Financial Statements
Property, Plant and Equipment Disclosure [Text Block]	Note 5 . Property and Equipment, N et Property and equipment, net is comprised of: As of December 31, 201 8 201 7 Network and base station equipment $ 44,684,728 $ 43,573,869 Customer premise equipment 36,283,676 34,996,202 Information technology 4,893,652 4,881,332 Furniture, fixtures and other 1,715,524 1,715,524 Leasehold improvements 1,517,560 1,651,300 Accrual - equipment received not invoiced 36,293 605,646 89,131,433 87,423,873 Less: accumulated depreciation 79,053,282 73,992,893 Property and equipment, net $ 10,078,151 $ 13,430,980 Depreciation expense for the years ended December 31, 2018 2017 $5,157,789 $5,324,969, Property acquired through capital leases included within the Company’s property and equipment consists of the following: As of December 31, 2018 2017 Network and base station equipment $ 2,680,000 $ 2,629,526 Customer premise equipment 1,633,748 1,269,373 Information technology 1,860,028 1,860,028 6,173,776 5,758,927 Less: accumulated depreciation 5,122,462 4,708,697 Property acquired through capital leases, net $ 1,051,314 $ 1,050,230

Note 6 - Goodwill and Intangibl

Note 6 - Goodwill and Intangible Assets, Net	12 Months Ended
	Dec. 31, 2018
Notes to Financial Statements
Intangible Assets Disclosure [Text Block]	Note 6 . Goodwill and Intangible Assets , Net Goodwill and intangible assets, net consist of the following: As of December 31, 201 8 201 7 Goodwill $ 1,674,281 $ 1,674,281 Backhaul agreement 3,837,783 3,837,783 Less: accumulated amortization 3,624,573 2,345,312 Backhaul agreement, net 213,210 1,492,471 FCC licenses, net 750,000 750,000 Intangible assets, net $ 963,210 $ 2,242,471 Amortization expense for the year ended December 31, 2018 2017 $1,279,261 $1,410,018, 4, three not $213,210 December 31, 2019.

Note 7 - Accrued Expenses

Note 7 - Accrued Expenses	12 Months Ended
	Dec. 31, 2018
Notes to Financial Statements
Accrued Liabilities Disclosure [Text Block]	Note 7. Accrued expenses consist of the following: As of December 31, 2018 2017 Payroll and related $ 357,118 $ 515,448 Professional services 149,891 318,979 Franchise taxes 130,000 177,384 Network 79,609 188,192 Other 57,441 101,990 Property and equipment 36,293 320,043 Total $ 810,352 $ 1,622,036 Network represents costs incurred to provide services to the Company’s customers including tower rentals, bandwidth, troubleshooting and gear removal.

Note 8 - Short-term Debt

Note 8 - Short-term Debt	12 Months Ended
	Dec. 31, 2018
Notes to Financial Statements
Debt Disclosure [Text Block]	Note 8. Short -Term Debt Short-term debt (callable) consists of the following: As of December 31, 201 8 201 7 Principal $ 38,699,308 $ 34,657,987 Unamortized debt discount - (789,287 ) Total $ 38,699,308 $ 33,868,700 In October 2014, $35,000,000 $33,950,000 3% This Note accrues interest on the basis of a 360 a) A rate equal to the greater of: i) the sum of the one 7% 8% one 2.50% December 31, 2018. b) A rate of 4% This Note is secured by a first The Note contains representations and warranties by the Company and the Lender, certain indemnification provisions in favor of the Lender and customary covenants (including limitations on other debt, liens, acquisitions, investments and dividends), and events of default (including payment defaults, breaches of covenants, a material impairment in the Lender’s security interest or in the collateral, and events relating to bankruptcy or insolvency). The Note contains several restrictive covenants and the most significant of which requires the Company to maintain a minimum cash balance of $6,500,000 5% may Effective January 26, 2018, October 16, 2014 March 30, 2018 ( $6,500,000 “$6,500,000 $6,500,000 $4,000,000 February 28, 2018 6.1 December 31, 2017 March 30, 2018 April 15, 2018. Effective April 15, 2018, second 6.1 June 30, 2018. June 30, 2018 ( $6,500,000 $6,500,000 $3,000,000 October 16, 2019 December 31, 2018 ( On May 24, 2018, May 31, 2018 April 30, 2018 May 15, 2018. Effective August 20, 2018, 6.1 September 30, 2018. June 30, 2018 September 30, 2018 ( On October 24, 2018, September 30, 2018 November 15, 2018 ( third Effective December 31, 2018, November 15, 2018 January 31, 2019 ( fourth December 31, 2018 January 31, 2019. The Company has the option to prepay the Note in the minimum principal amount of $5,000,000 $1,000,000 not The Company recorded interest expense of $6,077,223 $4,142,046 December 31, 2018 2017, $2,035,903 $2,775,054 $4,041,320 $1,366,992 December 31, 2018 2017, The interest rate for the fourth 2018 18.24% 9.24%, 5.0%, 4.0% October 24, 2018, $2,605,320 17, Subsequent Events January 2019. The Company recorded amortization expense related to the debt discount of $789,287 $1,014,456 December 31, 2018 2017,

Note 9 - Other Long-term Liabil

Note 9 - Other Long-term Liabilities	12 Months Ended
	Dec. 31, 2018
Notes to Financial Statements
Other Liabilities Disclosure [Text Block]	Note 9. Other Long-Term Liabilities Other long-term liabilities consist of the following: As of December 31, 201 8 201 7 Deferred rent $ 347,554 $ 417,605 Deferred taxes - 336,598 Deferred revenues 38,471 - Total $ 386,025 $ 754,203

Note 10 - Capital Stock

Note 10 - Capital Stock	12 Months Ended
	Dec. 31, 2018
Notes to Financial Statements
Stockholders' Equity Note Disclosure [Text Block]	Note 10 . Capital Stock The Company is authorized to issue up to 200,000,000 $0.001. one may no may may The Company is authorized to issue up to 5,000,000 $0.001 may one one may The Company had created Series A Preferred Stock during the year ended December 31, 2010, December 31, 2016, December 31, 2017, December 31, 2018. December 31, 2018 2017: Designated Issued and Outstanding 2018 2017 Series A Preferred Stock 350,000 - - Series B Convertible Preferred Stock 892,857 - - Series C Convertible Preferred Stock 680,000 - - Series D Convertible Preferred Stock 4,421 - - Series E Convertible Preferred Stock 2,000,000 - - Series F Convertible Preferred Stock 1,233 - - Series G Convertible Preferred Stock 938 538 538 Series H Convertible Preferred Stock 938 501 501 Series I Preferred Stock 100 100 - 3,930,487 1,139 1,039 The preferences, rights, and limitations of each series of preferred stock, and equity activity for the years ended December 31, 2018 2017, a) On January 9, 2017, 500,000 6,667 b) On various dates from January 26, 2017 April 13, 2017, 590 39,334 c) On May 26, 2017, 1,233 643 938 938 The key preferences, rights, and limitations of the Series G Preferred Stock and Series H Preferred Stock, are as follows: i. The Stated Value of each share of Series G Preferred Stock and Series H Preferred Stock is $1,000; ii. Series G Preferred Stock and Series H Preferred Stock may $1,000 $7.50 $1,000 $9.38 iii. In the event of a liquidation event, each share of Series G Preferred Stock and Series H Preferred Stock will be entitled to a per share preferential payment equal to 100% iv. The Company is prohibited from effecting a conversion of the Series G Preferred Stock and Series H Preferred Stock to the extent that, as a result of such conversion, the holder would beneficially own more than 9.99% may not Additionally, upon the issuance of the Series G Preferred Stock and Series H Preferred Stock, the Company recorded a beneficial conversion feature and a deemed dividend in the amount of $1,905,570. e) On various dates from May 30, 2017 June 29, 2017, 437 46,614 f) On various dates from June 30, 2017 August 22, 2017, 400 53,335 g) On September 29, 2017 1 75 h) On May 24, 2018, 2,400 1:20 1:75 July 2016 September 2017) 100 no i. Shares of Series I Preferred Stock are not ii. In the event of a liquidation or fundamental transaction, a holder of Series I Preferred Stock shall be redeemed and shall be entitled to receive, per share of Series I Preferred Stock, in cash out of the assets of the Company, whether from capital or from earnings available for distribution to its shareholders (the “Liquidation Funds”), a one x $1,025,437 $2 2018 25% iii. All shares of capital stock of the Company (when and if issued), except for shares of Series G Convertible Preferred Stock and shares of Series H Convertible Preferred Stock outstanding as of May 24, 2018, iv. Holders of the Series I Preferred Stock shall have no one The Series I Preferred Stock was accounted for under Section 480 10 S99 480 No. 2009 04 2009 04” 2009 04, not

Note 11 - Stock Option Plans an

Note 11 - Stock Option Plans and Warrants	12 Months Ended
	Dec. 31, 2018
Notes to Financial Statements
Disclosure of Compensation Related Costs, Share-based Payments [Text Block]	Note 11 . Stock Option Plans and Warrants Stock Options Plans The 2007 “2007 January 2007 2007 1,603. 887 2007 December 31, 2018. The 2007 “2007 May 2007 1,667 2007 1,667 3,334 November 2012. 2,563 2007 December 31, 2018. Options granted under both the 2007 2007 ten not December 31, 2018 2007 2007 1,487 The 2008 “2008 August 2008 667 November 2013, 2008 1,334. 1,174 2008 December 31, 2018. 2008 ten December 31, 2018 2008 160 The 2016 “2016 September 2016 9,094 2016 9,094 19,134 December 2016. February 2017, 2016 19,134 33,618. 69,184 2016 December 31, 2018. The 2016 “2016 December 2016 3,334 436 2016 December 31, 2018. Options granted under both the 2016 2016 ten not The Company uses the Black-Scholes option pricing model to value options issued to employees, directors and consultants. Compensation expense, including the estimated effect of forfeitures, is recognized over the period of service, generally the vesting period. Stock-based compensation for the amortization of stock options granted under the Company’s stock option plans totaled $161,394 $931,382 December 31, 2018 2017, The unamortized amount of stock options expense was $61,432 December 31, 2018 1.0 The fair values of stock option grants were calculated on the dates of grant using the Black-Scholes option pricing model and the following weighted average assumptions: Years Ended December 31, 201 8 201 7 Risk-free interest rate 2.7% 1.6% to 1.7% Expected volatility 105% 110% to 113% Expected life (in years) 4.2 4.2 Expected dividend yield - - Estimated forfeiture rates 20% 20% The risk-free interest rate was based on rates established by the Federal Reserve. The expected volatility was based upon the historical volatility for the Company’s common stock. The Company utilized historical data to determine the expected life of stock options. The dividend yield reflected the fact that the Company has not not Option transactions under the stock option plans during the years ended December 31, 2018 2017 Number Weighted Average Exercise Price Outstanding as of January 1, 2017 28,232 $ 404.82 Granted during 2017 51,090 12.77 Exercised - - Forfeited /expired (2,721 ) 1,134.23 Outstanding as of December 31, 2017 76,601 117.42 Granted during 2018 102 2.40 Exercised - - Forfeited /expired (3,896 ) 134.50 Outstanding as of December 31, 2018 72,807 $ 116.53 Exercisable as of December 31, 2018 51,952 $ 156.83 Grants under the stock option plans were as follows: For the Years Ended December 31, 201 8 201 7 Annual grants to outside directors 102 170 Executive grants - 50,586 Non-employee grants - 334 Total 102 51,090 Options granted during the reporting periods had terms ranging from five ten one one two one two one three one one three six one On January 24, 2017, 27,162 $12.75 ten 4,178 January 24, 2018; 8,358 eight twenty-four January 24, 2020; 7,313 three 7,313 $15,000,000. Certain stock options awarded to Ernest Ortega, Chief Executive Officer, in conjunction with his 2017 $140,708 December 31, 2017. not December 31, 2018 2017, On February 3, 2017, 15,868 $13.50 ten 6,676 5,854 3,338 100% eight May 15, 2017 May 15, 2018, May 15, 2018. On May 15, 2017, 2% May 15, 2017, 7,556 25% one three January 5, 2018 Forfeited or expired options under the stock option plans were as follows: For the Years Ended December 31, 201 8 201 7 Employee terminations 3,756 2,619 Expired 140 102 Total 3,896 2,721 The weighted-average fair values of the options granted during 2018 2017 $1.76 $9.65, 72,807 December 31, 2018 $2.40 $7,845.00 7.9 51,952 December 31, 2018 $2.40 $7,845.00 7.9 As of December 31, 2018, no December 31, 2018, $2.10 Stock Warrants Warrant transactions during the years ended December 31, 2018 2017 Number Weighted Average Exercise Price Outstanding as of January 1, 2017 and 2018 2,400 $ 1,265.25 Exchanged during 2018 (2,400 ) 1,265.25 Outstanding and exercisable as of December 31, 2018 - $ - On May 24, 2018, 2,400 100 10, Capital Stock

Note 12 - Employee Benefit Prog

Note 12 - Employee Benefit Programs	12 Months Ended
	Dec. 31, 2018
Notes to Financial Statements
Employee Stock Purchase Plan Disclosure [Text Block]	Note 12 . Employee Benefit Programs The Company has established a 401 “401 twenty-one 30 401 No December 31, 2018 2017. Under the Company’s 2010 15% 334 December 31, 2018 2017, zero 30 zero $358, zero $52 15% December 31, 2018 2017,

Note 13 - Income Taxes

Note 13 - Income Taxes	12 Months Ended
	Dec. 31, 2018
Notes to Financial Statements
Income Tax Disclosure [Text Block]	Note 13 . Income Taxes Provision The provision for income taxes consists of the following: Years Ended December 31, 201 8 201 7 Current Federal $ - $ State - - Total current - - Deferred - Federal (2,213,273 ) (896,114 ) State (632,364 ) (256,033 ) Change in valuation allowance 2,509,039 1,068,307 Total deferred (336,598 ) (83,840 ) Provision for income taxes $ (336,598 ) $ (83,840 ) The provision for income taxes using the U.S. Federal statutory tax rate as compared to the Company’s effective tax rate is summarized as follows: Years Ended December 31, 201 8 201 7 U.S. federal statutory rate (21.0 )% (34.0 )% State taxes (6.0 %) (5.0 )% Permanent differences - % 0.1 % Change of federal deferred tax rate - % 29.7 % Change in valuation allowance 23.8 % 8.5 % Effective tax rate (3.2 )% (0.7 )% The Company files income tax returns for Towerstream Corporation and its subsidiaries in the U.S. federal and various state principle jurisdictions. As of December 31, 2018, 2015 2018 no Impact of Tax Cuts and Jobs Act On December 22, 2017, 21%, December 31, 2017. December 31, 2017 $3,940,628 $203,738. $3,791,030 118 2018. no The Company’s deferred tax assets (liabilities) consisted of the effects of temporary differences attributable to the following: Years Ended December 31, 201 8 201 7 Deferred tax assets Net operating loss carryforwards $ 4,921,264 $ 4,345,624 Stock-based compensation 2,324,392 2,280,815 Intangible assets 1,280,812 1,094,799 Debt discount 948,572 831,717 Allowance for doubtful accounts 41,611 25,889 Interest expense limitation 1,515,513 - Depreciation 316,797 - Other 286,800 287,571 Total deferred tax assets 11,635,761 8,866,415 Valuation allowance (11,253,638 ) (8,744,600 ) Deferred tax assets, net of valuation allowance 382,123 121,815 Deferred tax liabilities Depreciation - (121,815 ) Intangible assets (382,123 ) (336,597 ) Total deferred tax liabilities (382,123 ) (458,412 ) Net deferred tax liabilities $ - $ (336,597 ) Accounting for Uncertainty in Income Taxes ASC Topic 740 740 As of December 31, 2018 2017, no No December 31, 2018 2017. not twelve NOL Limitations The Company’s utilization of net operating loss (“NOL”) carryforwards is subject to an annual limitation due to ownership changes that have occurred previously or that could occur in the future as provided in Section 382 382 50% 382, The NOLs as of December 31, 2018 2017 382 2016. no 382 December 31, 2018 2017. December 31, 2018 2017, $2,132,000 $8,536,000, December 31, 2018 2017, $18,227,000 $16,095,000, December 31, 2027. 2018 $2,132,000 not Valuation Allowance In assessing the realizability of deferred tax assets, the Company has considered whether it is more likely than not not December 31, 2018 2017. $2,509,038 $1,068,307, December 31, 2018 2017.

Note 14 - Fair Value Measuremen

Note 14 - Fair Value Measurement	12 Months Ended
	Dec. 31, 2018
Notes to Financial Statements
Fair Value Disclosures [Text Block]	Note 14 . Fair Value Measurement The FASB’s accounting standard for fair value measurements establishes a valuation hierarchy for disclosure of the inputs to valuation used to measure fair value. This hierarchy prioritizes the inputs into three 1 2 3 Cash and cash equivalents are measured at fair value using quoted market prices and are classified within Level 1 no December 31, 2018. Total Carrying Value Quoted prices in active markets (Level 1) Significant other observable inputs (Level 2) Significant unobservable inputs (Level 3) December 31, 2018 $ 4,173,070 $ 4,173,070 $ - $ - December 31, 2017 $ 7,568,982 $ 7,568,982 $ - $ -

Note 15 - Revenues

Note 15 - Revenues	12 Months Ended
	Dec. 31, 2018
Notes to Financial Statements
Revenue from Contract with Customer [Text Block]	Note 1 5 . Revenues In May 2014 , 606, 606 606 January 1, 2018 December 31, 2018, $131,877, 606. not 606 not 2017 Revenue Recognition Generally, the Company considers all revenues as arising from contracts with customers. Prior to 2018, 104, Beginning in 2018, five 606: Step 1 Step 2 not Step 3 not Step 4 one Step 5 Disaggregation of Revenue We provide fixed wireless business internet service to companies ranging from small businesses to fortune 500 no one three no Deferred Revenues Customers are billed monthly in advance. Deferred revenues are recognized for that portion of monthly charges not The Company also defers installation fees billed to the customer and commission costs associated with obtaining new contracts. The installation fees and commission costs are amortized over the average contract term of new contracts. As of December 31, 2018, $131,877 $93,406 $38,471 $178,333 $136,410 $41,923

Note 16 - Commitments

Note 16 - Commitments	12 Months Ended
	Dec. 31, 2018
Notes to Financial Statements
Commitments Disclosure [Text Block]	Note 16. Operating Lease Obligations The Company has entered into operating leases related to roof rights, cellular towers, office space, and equipment leases under various non-cancelable agreements expiring on various dates through March 2025. one fifteen not not As of December 31, 2018, Years Ending December 31, 2019 $ 7,286,466 2020 5,231,865 2021 3,134,185 2022 1,918,867 2023 681,014 Thereafter 311,412 Total $ 18,563,809 Rent expenses were as follows: Year Ended December 31, 201 8 201 7 Points of Presence $ 9,071,856 $ 8,693,892 Corporate offices 248,045 220,309 Other 966,533 935,293 Total $ 10,286,434 $ 9,849,494 Rent expenses related to Points of Presence were included in infrastructure and access in the Company’s consolidated statements of operations. Rent expense related to our corporate offices was allocated between general and administrative, sales and marketing, customer support, and network operations expense in the Company’s consolidated statements of operations. Other rent expenses were included in network operations within the Company’s consolidated statements of operations. In April 2017, April 15, 2017 December 31, 2017 $32,021 June 2017, second June 1, 2017 December 31, 2017 $20,734 not December 2017. In October 2017, January 1, 2018 December 31, 2024 five December 31, 2024. $183,256 2018 2.5% $213,422 2024. Capital Lease Obligations The Company has entered into capital leases to acquire property and equipment expiring through January 2021. December 31, 2018, Years Ending December 31, 2019 $ 388,501 2020 300,374 2021 9,523 Sub-Total 698,398 Less: Interest expense 60,676 Total capital lease obligations $ 637,722 Current $ 341,975 Long-Term $ 295,747

Note 17 - Subsequent Events

Note 17 - Subsequent Events	12 Months Ended
	Dec. 31, 2018
Notes to Financial Statements
Subsequent Events [Text Block]	Note 1 7 Subsequent Events On January 31, 2019, January 31, 2019 April 30, 2019 ( $6,500,000 $6,500,000 $2,000,000 March 31, 2019 may January 31, 2019 April 30, 2019. may

Significant Accounting Policies

Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2018
Accounting Policies [Abstract]
Basis of Accounting, Policy [Policy Text Block]	Basis of Presentation .
Stockholders' Equity, Policy [Policy Text Block]	Retroactive Adjustment For Reverse Stock Split September 29, 2017, 1 75 2017
Use of Estimates, Policy [Policy Text Block]	Use of Estimates
Cash and Cash Equivalents, Policy [Policy Text Block]	Cash and Cash Equivalents three
Concentration Risk, Credit Risk, Policy [Policy Text Block]	Concentration of Credit Risk may not December 31, 2018, $3.9 $250,000.
Receivables, Policy [Policy Text Block]	Accounts Receivable, Net not
Property, Plant and Equipment, Policy [Policy Text Block]	Property and Equipment , Net five three five three five not
Goodwill and Intangible Assets, Intangible Assets, Indefinite-Lived, Policy [Policy Text Block]	FCC Licenses not
Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block]	Long-Lived Assets may not not The FASB’s guidance on asset retirement obligations addresses financial accounting and reporting for obligations associated with the retirement of tangible long-lived assets and the associated costs. This guidance requires the recognition of an asset retirement obligation and an associated asset retirement cost when there is a legal obligation associated with the retirement of tangible long-lived assets. The Company’s network equipment is installed on both buildings in which the Company has a lease agreement and at customer locations. In both instances, the installation and removal of the Company’s equipment is not not not not
Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block]	Goodwill not fourth may not No 50 no December 31, 2018 2017,
Fair Value of Financial Instruments, Policy [Policy Text Block]	Fair Value of Financial Instruments three not
Income Tax, Policy [Policy Text Block]	Income Taxes not not not On December 22, 2017, 21 January 1, 2018. 740, $2,361,936 $2,232,571.
Lessee, Leases [Policy Text Block]	Deferred Rent
Advertising Costs, Policy [Policy Text Block]	Advertising Costs December 31, 2018 2017 $39,727 $84,000,
Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block]	Stock-Based Compensation
Earnings Per Share, Policy [Policy Text Block]	Basic and Diluted Net Loss Per Share The following common stock equivalents were excluded from the computation of diluted net loss per share of common stock because they were anti-dilutive. The exercise of these common stock equivalents would dilute earnings per share if the Company becomes profitable in the future. Years Ended December 31, 201 8 201 7 Stock options 72,807 76,601 Warrants - 2,400 Series G Convertible Preferred Stock 71,734 71,734 Series H Convertible Preferred Stock 53,440 53,440 Total 197,981 204,175
Segment Reporting, Policy [Policy Text Block]	Segments one
New Accounting Pronouncements, Policy [Policy Text Block]	Recent Accounting Pronouncements May 2014 , No. 2014 09 2014 09 ” 2014 19 one 606, 606” 606 606 January 1, 2018 15, Revenues In February 2016, No. 2016 02 2016 02” 842 2016 02 2016 02 December 15, 2018 July 2018, No. 2018 10, 842, July 2018, No. 2018 11, 842 not January 1, 2019. not not In July 2017, No. 2017 11, 260 480 815 2017 11 two no no 260 470 20, 260 480 not December 15, 2018. December 15, 2019, December 15, 2020. not not not

Note 3 - Basis of Presentatio_2

Note 3 - Basis of Presentation and Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2018
Notes Tables
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]	Years Ended December 31, 201 8 201 7 Stock options 72,807 76,601 Warrants - 2,400 Series G Convertible Preferred Stock 71,734 71,734 Series H Convertible Preferred Stock 53,440 53,440 Total 197,981 204,175

Note 4 - Discontinued Operati_2

Note 4 - Discontinued Operations (Tables)	12 Months Ended
	Dec. 31, 2018
Notes Tables
Discontinued Operation, Schedule of Amounts Recognized in Balance Sheet [Table Text Block]	As of December 31, 201 8 201 7 Liabilities: Accrued expenses - leases $ 1,005,073 $ 1,029,022 Total Current Liabilities $ 1,005,073 $ 1,029,022

Note 5 - Property and Equipme_2

Note 5 - Property and Equipment, Net (Tables)	12 Months Ended
	Dec. 31, 2018
Notes Tables
Property, Plant and Equipment [Table Text Block]	As of December 31, 201 8 201 7 Network and base station equipment $ 44,684,728 $ 43,573,869 Customer premise equipment 36,283,676 34,996,202 Information technology 4,893,652 4,881,332 Furniture, fixtures and other 1,715,524 1,715,524 Leasehold improvements 1,517,560 1,651,300 Accrual - equipment received not invoiced 36,293 605,646 89,131,433 87,423,873 Less: accumulated depreciation 79,053,282 73,992,893 Property and equipment, net $ 10,078,151 $ 13,430,980
Schedule of Capital Leased Assets [Table Text Block]	As of December 31, 2018 2017 Network and base station equipment $ 2,680,000 $ 2,629,526 Customer premise equipment 1,633,748 1,269,373 Information technology 1,860,028 1,860,028 6,173,776 5,758,927 Less: accumulated depreciation 5,122,462 4,708,697 Property acquired through capital leases, net $ 1,051,314 $ 1,050,230

Note 6 - Goodwill and Intangi_2

Note 6 - Goodwill and Intangible Assets, Net (Tables)	12 Months Ended
	Dec. 31, 2018
Notes Tables
Schedule of Intangible Assets and Goodwill [Table Text Block]	As of December 31, 201 8 201 7 Goodwill $ 1,674,281 $ 1,674,281 Backhaul agreement 3,837,783 3,837,783 Less: accumulated amortization 3,624,573 2,345,312 Backhaul agreement, net 213,210 1,492,471 FCC licenses, net 750,000 750,000 Intangible assets, net $ 963,210 $ 2,242,471

Note 7 - Accrued Expenses (Tabl

Note 7 - Accrued Expenses (Tables)	12 Months Ended
	Dec. 31, 2018
Notes Tables
Schedule of Accrued Liabilities [Table Text Block]	Accrued expenses consist of the following: As of December 31, 2018 2017 Payroll and related $ 357,118 $ 515,448 Professional services 149,891 318,979 Franchise taxes 130,000 177,384 Network 79,609 188,192 Other 57,441 101,990 Property and equipment 36,293 320,043 Total $ 810,352 $ 1,622,036

Note 8 - Short-term Debt (Table

Note 8 - Short-term Debt (Tables)	12 Months Ended
	Dec. 31, 2018
Notes Tables
Schedule of Long-term Debt Instruments [Table Text Block]	As of December 31, 201 8 201 7 Principal $ 38,699,308 $ 34,657,987 Unamortized debt discount - (789,287 ) Total $ 38,699,308 $ 33,868,700

Note 9 - Other Long-term Liab_2

Note 9 - Other Long-term Liabilities (Tables)	12 Months Ended
	Dec. 31, 2018
Notes Tables
Other Liabilities [Table Text Block]	As of December 31, 201 8 201 7 Deferred rent $ 347,554 $ 417,605 Deferred taxes - 336,598 Deferred revenues 38,471 - Total $ 386,025 $ 754,203

Note 10 - Capital Stock (Tables

Note 10 - Capital Stock (Tables)	12 Months Ended
	Dec. 31, 2018
Notes Tables
Preferred Stock Designated, Issued, and Outstanding [Table Text Block]	Designated Issued and Outstanding 2018 2017 Series A Preferred Stock 350,000 - - Series B Convertible Preferred Stock 892,857 - - Series C Convertible Preferred Stock 680,000 - - Series D Convertible Preferred Stock 4,421 - - Series E Convertible Preferred Stock 2,000,000 - - Series F Convertible Preferred Stock 1,233 - - Series G Convertible Preferred Stock 938 538 538 Series H Convertible Preferred Stock 938 501 501 Series I Preferred Stock 100 100 - 3,930,487 1,139 1,039

Note 11 - Stock Option Plans _2

Note 11 - Stock Option Plans and Warrants (Tables)	12 Months Ended
	Dec. 31, 2018
Notes Tables
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]	Years Ended December 31, 201 8 201 7 Risk-free interest rate 2.7% 1.6% to 1.7% Expected volatility 105% 110% to 113% Expected life (in years) 4.2 4.2 Expected dividend yield - - Estimated forfeiture rates 20% 20%
Share-based Compensation, Stock Options, Activity [Table Text Block]	Number Weighted Average Exercise Price Outstanding as of January 1, 2017 28,232 $ 404.82 Granted during 2017 51,090 12.77 Exercised - - Forfeited /expired (2,721 ) 1,134.23 Outstanding as of December 31, 2017 76,601 117.42 Granted during 2018 102 2.40 Exercised - - Forfeited /expired (3,896 ) 134.50 Outstanding as of December 31, 2018 72,807 $ 116.53 Exercisable as of December 31, 2018 51,952 $ 156.83
Schedule Of Grants Under Stock Option Plan Details [Table Text Block]	For the Years Ended December 31, 201 8 201 7 Annual grants to outside directors 102 170 Executive grants - 50,586 Non-employee grants - 334 Total 102 51,090
Schedule Of Forfeited Or Expired Options Under Stock Option Plans [Table Text Block]	For the Years Ended December 31, 201 8 201 7 Employee terminations 3,756 2,619 Expired 140 102 Total 3,896 2,721
Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]	Number Weighted Average Exercise Price Outstanding as of January 1, 2017 and 2018 2,400 $ 1,265.25 Exchanged during 2018 (2,400 ) 1,265.25 Outstanding and exercisable as of December 31, 2018 - $ -

Note 13 - Income Taxes (Tables)

Note 13 - Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2018
Notes Tables
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]	Years Ended December 31, 201 8 201 7 Current Federal $ - $ State - - Total current - - Deferred - Federal (2,213,273 ) (896,114 ) State (632,364 ) (256,033 ) Change in valuation allowance 2,509,039 1,068,307 Total deferred (336,598 ) (83,840 ) Provision for income taxes $ (336,598 ) $ (83,840 )
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]	Years Ended December 31, 201 8 201 7 U.S. federal statutory rate (21.0 )% (34.0 )% State taxes (6.0 %) (5.0 )% Permanent differences - % 0.1 % Change of federal deferred tax rate - % 29.7 % Change in valuation allowance 23.8 % 8.5 % Effective tax rate (3.2 )% (0.7 )%
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]	Years Ended December 31, 201 8 201 7 Deferred tax assets Net operating loss carryforwards $ 4,921,264 $ 4,345,624 Stock-based compensation 2,324,392 2,280,815 Intangible assets 1,280,812 1,094,799 Debt discount 948,572 831,717 Allowance for doubtful accounts 41,611 25,889 Interest expense limitation 1,515,513 - Depreciation 316,797 - Other 286,800 287,571 Total deferred tax assets 11,635,761 8,866,415 Valuation allowance (11,253,638 ) (8,744,600 ) Deferred tax assets, net of valuation allowance 382,123 121,815 Deferred tax liabilities Depreciation - (121,815 ) Intangible assets (382,123 ) (336,597 ) Total deferred tax liabilities (382,123 ) (458,412 ) Net deferred tax liabilities $ - $ (336,597 )

Note 14 - Fair Value Measurem_2

Note 14 - Fair Value Measurement (Tables)	12 Months Ended
	Dec. 31, 2018
Notes Tables
Fair Value, Assets Measured on Recurring Basis [Table Text Block]	Total Carrying Value Quoted prices in active markets (Level 1) Significant other observable inputs (Level 2) Significant unobservable inputs (Level 3) December 31, 2018 $ 4,173,070 $ 4,173,070 $ - $ - December 31, 2017 $ 7,568,982 $ 7,568,982 $ - $ -

Note 16 - Commitments (Tables)

Note 16 - Commitments (Tables)	12 Months Ended
	Dec. 31, 2018
Notes Tables
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]	Years Ending December 31, 2019 $ 7,286,466 2020 5,231,865 2021 3,134,185 2022 1,918,867 2023 681,014 Thereafter 311,412 Total $ 18,563,809
Schedule of Rent Expense [Table Text Block]	Year Ended December 31, 201 8 201 7 Points of Presence $ 9,071,856 $ 8,693,892 Corporate offices 248,045 220,309 Other 966,533 935,293 Total $ 10,286,434 $ 9,849,494
Schedule of Future Minimum Lease Payments for Capital Leases [Table Text Block]	Years Ending December 31, 2019 $ 388,501 2020 300,374 2021 9,523 Sub-Total 698,398 Less: Interest expense 60,676 Total capital lease obligations $ 637,722 Current $ 341,975 Long-Term $ 295,747

Note 2 - Liquidity, Going Con_2

Note 2 - Liquidity, Going Concern, and Management Plans (Details Textual) - USD ($)	1 Months Ended
	May 31, 2018	Dec. 31, 2018	May 24, 2018	Dec. 31, 2017	Dec. 31, 2016
Cash and Cash Equivalents, at Carrying Value, Ending Balance		$ 4,173,070		$ 7,568,982	$ 12,272,444
Working Capital		(36,900,000)
Retained Earnings (Accumulated Deficit), Ending Balance		$ (199,335,362)		$ (189,124,909)
Management Incentive Plan, Cash Bonuses, Potential Payout Amount	$ 2,000,000		$ 2,000,000
Management Incentive Plan, Cash Bonuses, Payout Upon Triggering Sale	1,000,000
Management Incentive Plan, Cash Bonuses, Additional Payout Earned Proportionately for Triggering Sale	1,000,000
Minimum [Member]
Management Incentive Plan, Cash Bonuses, Triggering Sales Amount	45,000,000
Maximum [Member]
Management Incentive Plan, Cash Bonuses, Triggering Sales Amount	$ 55,000,000

Note 3 - Basis of Presentatio_3

Note 3 - Basis of Presentation and Summary of Significant Accounting Policies (Details Textual)	Jan. 01, 2018USD ($)	Sep. 29, 2017	Sep. 30, 2017	Jul. 31, 2016	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)
Cash, Uninsured Amount					$ 3,900,000
Cash, FDIC Insured Amount					$ 250,000
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent					21.00%	34.00%
Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability	$ 2,361,936
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount	$ 2,232,571
Advertising Expense					$ 40,000	$ 84,000
Number of Operating Segments					1
Leasehold Improvements [Member]
Property, Plant and Equipment, Useful Life					5 years
Furniture and Fixtures [Member] | Minimum [Member]
Property, Plant and Equipment, Useful Life					3 years
Furniture and Fixtures [Member] | Maximum [Member]
Property, Plant and Equipment, Useful Life					5 years
Information Technology [Member] | Minimum [Member]
Property, Plant and Equipment, Useful Life					3 years
Information Technology [Member] | Maximum [Member]
Property, Plant and Equipment, Useful Life					5 years
Reverse Stock Split [Member]
Stockholders' Equity Note, Stock Split, Conversion Ratio		75	75	20

Note 3 - Basis of Presentatio_4

Note 3 - Basis of Presentation and Summary of Significant Accounting Policies - Antidilutive Shares Excluded From Computation of EPS (Details) - shares	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Antidilutive Securities Excluded From Computation of Earnings Per Share, Amount (in shares)	197,981	204,175
Equity Option [Member]
Antidilutive Securities Excluded From Computation of Earnings Per Share, Amount (in shares)	72,807	76,601
Warrant [Member]
Antidilutive Securities Excluded From Computation of Earnings Per Share, Amount (in shares)		2,400
Series G Convertible Preferred Stock [Member]
Antidilutive Securities Excluded From Computation of Earnings Per Share, Amount (in shares)	71,734	71,734
Series H Convertible Preferred Stock [Member]
Antidilutive Securities Excluded From Computation of Earnings Per Share, Amount (in shares)	53,440	53,440

Note 4 - Discontinued Operati_3

Note 4 - Discontinued Operations (Details Textual) - Shared Wireless Business [Member]	Mar. 09, 2016USD ($)
Asset Purchase Agreement, Term	3 years
Asset Purchase Agreement, Number of One Year Renewals	2
Asset Purchase Agreement, Cancellation Notice	60 days
Disposal Group, Including Discontinued Operation, Assets, Total	$ 2,660,041
Disposal Group, Including Discontinued Operation, Consideration	$ 3,837,783

Note 4 - Discontinued Operati_4

Note 4 - Discontinued Operations - Components of Balance Sheet Accounts (Details) - USD ($)	Dec. 31, 2018	Dec. 31, 2017
Liabilities:
Total Current Liabilities	$ 1,005,073	$ 1,029,022
Network [Member]
Liabilities:
Accrued expenses - leases	$ 1,005,073	$ 1,029,022

Note 5 - Property and Equipme_3

Note 5 - Property and Equipment, Net (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Depreciation, Total	$ 5,157,789	$ 5,324,969

Note 5 - Property and Equipme_4

Note 5 - Property and Equipment, Net - Property and Equipment (Details) - USD ($)	Dec. 31, 2018	Dec. 31, 2017
Property, Plant, and Equipment, Gross	$ 89,131,433	$ 87,423,873
Less: accumulated depreciation	79,053,282	73,992,893
Property and equipment, net	10,078,151	13,430,980
Network and Base Station Equipment [Member]
Property, Plant, and Equipment, Gross	44,684,728	43,573,869
Customer Premise Equipment [Member]
Property, Plant, and Equipment, Gross	36,283,676	34,996,202
Information Technology [Member]
Property, Plant, and Equipment, Gross	4,893,652	4,881,332
Furniture and Fixtures [Member]
Property, Plant, and Equipment, Gross	1,715,524	1,715,524
Leasehold Improvements [Member]
Property, Plant, and Equipment, Gross	1,517,560	1,651,300
Equipment Received but Not Invoiced [Member]
Property, Plant, and Equipment, Gross	$ 36,293	$ 605,646

Note 5 - Property and Equipme_5

Note 5 - Property and Equipment, Net - Property Acquired Through Capital Leases (Details) - USD ($)	Dec. 31, 2018	Dec. 31, 2017
Capital Leased Assets, Gross	$ 6,173,776	$ 5,758,927
Less: accumulated depreciation	5,122,462	4,708,697
Property acquired through capital leases, net	1,051,314	1,050,230
Network and Base Station Equipment [Member]
Capital Leased Assets, Gross	2,680,000	2,629,526
Customer Premise Equipment [Member]
Capital Leased Assets, Gross	1,633,748	1,269,373
Information Technology [Member]
Capital Leased Assets, Gross	$ 1,860,028	$ 1,860,028

Note 6 - Goodwill and Intangi_3

Note 6 - Goodwill and Intangible Assets, Net (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Amortization of Intangible Assets, Total	$ 1,279,261	$ 1,410,018
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	$ 213,210
Time Warner Cable [Member] | Backhaul Agreement [Member]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	3 years

Note 6 - Goodwill and Intangi_4

Note 6 - Goodwill and Intangible Assets, Net - Intangible Assets and Goodwill (Details) - USD ($)	Dec. 31, 2018	Dec. 31, 2017
Goodwill	$ 1,674,281	$ 1,674,281
FCC licenses, net	750,000	750,000
Intangible assets, net	963,210	2,242,471
Backhaul Agreement [Member]
Backhaul agreement	3,837,783	3,837,783
Backhaul agreement, net	213,210	1,492,471
Customer Relationships [Member]
Less: accumulated amortization	$ 3,624,573	$ 2,345,312

Note 7 - Accrued Expenses - Acc

Note 7 - Accrued Expenses - Accrued Expenses (Details) - USD ($)	Dec. 31, 2018	Dec. 31, 2017
Accrued Liabilities, Current	$ 810,352	$ 1,622,036
Payroll and Related [Member]
Accrued Liabilities, Current	357,118	515,448
Professional Services [Member]
Accrued Liabilities, Current	149,891	318,979
Franchise Taxes [Member]
Accrued Liabilities, Current	130,000	177,384
Network [Member]
Accrued Liabilities, Current	79,609	188,192
Other Accrued Liabilities [Member]
Accrued Liabilities, Current	57,441	101,990
Property and Equipment [Member]
Accrued Liabilities, Current	$ 36,293	$ 320,043

Note 8 - Short-term Debt (Detai

Note 8 - Short-term Debt (Details Textual) - USD ($)	Oct. 24, 2018	Apr. 15, 2018	Jan. 26, 2018	Oct. 31, 2014	Dec. 31, 2018	Dec. 31, 2018	Dec. 31, 2017
Amortization of Debt Issuance Costs and Discounts, Total						$ 789,287	$ 1,014,456
Melody Business Finance LLC [Member] | Secured Debt [Member]
Debt Instrument, Face Amount				$ 35,000,000
Proceeds from Issuance of Long-term Debt, Total				$ 33,950,000
Debt Instrument, Original Issue Discount Rate				3.00%
Paid In Kind Interest Stated Rate				4.00%
Debt Covenant, Cash and Cash Equivalents, Minimum Balance				$ 6,500,000
Debt Instrument Additional Interes Rate In The Event Of Default				5.00%
Debt Covenant, Deposit and Securities Accounts, Minimum Balance, Waived		$ 6,500,000	$ 6,500,000
Debt Covenant, Deposit and Securities Accounts, Minimum Balance, Termination of Forbearance Period		$ 3,000,000	$ 4,000,000
Debt Instrument Prepayment Minimum Principal Amount				$ 5,000,000
Debt Instrument, Prepayment, Integral Amounts Beyond the Minimum Principal Amount				$ 1,000,000
Interest Expense, Total						6,077,223	4,142,046
Interest Paid, Including Capitalized Interest, Operating and Investing Activities, Total						2,035,903	2,775,054
Notes Assumed						4,041,320	1,366,992
Debt Instrument, Interest Rate During Period					18.24%
Debt Instrument, Cash Interest Rate					9.24%
Debt Instrument, Default Interest Rate Premium					5.00%
Debt Instrument, Paid-in-Kind Interest Rate					4.00%
Debt Instrument, Increase, Accrued Interest	$ 2,605,320
Amortization of Debt Issuance Costs and Discounts, Total						$ 789,287	$ 1,014,456
Melody Business Finance LLC [Member] | Secured Debt [Member] | If Rate Is Greater Than LIBOR Rate [Member]
Debt Instrument, Interest Rate, Stated Percentage				8.00%
Melody Business Finance LLC [Member] | Secured Debt [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument, Basis Spread on Variable Rate				7.00%
Debt Instrument, Reference Rate						2.50%

Note 8 - Short-term Debt - Summ

Note 8 - Short-term Debt - Summary of Debt (Details) - USD ($)	Dec. 31, 2018	Dec. 31, 2017
Principal	$ 38,699,308	$ 34,657,987
Unamortized debt discount		(789,287)
Total	$ 38,699,308	$ 33,868,700

Note 9 - Other Long-term Liab_3

Note 9 - Other Long-term Liabilities - Other Liabilities, Current and Noncurrent (Details) - USD ($)	Dec. 31, 2018	Dec. 31, 2017
Deferred rent	$ 347,554	$ 417,605
Deferred taxes		336,598
Deferred revenues	38,471
Total	$ 386,025	$ 754,203

Note 10 - Capital Stock (Detail

Note 10 - Capital Stock (Details Textual)	May 24, 2018USD ($)shares	Sep. 29, 2017	May 26, 2017USD ($)$ / sharesshares	Jan. 09, 2017shares	Sep. 30, 2017	Jun. 29, 2017shares	Jul. 31, 2016	Aug. 22, 2017shares	Apr. 13, 2017shares	Dec. 31, 2018$ / sharesshares	May 31, 2018USD ($)	Dec. 31, 2017$ / sharesshares
Common Stock, Shares Authorized										200,000,000		200,000,000
Common Stock, Par or Stated Value Per Share | $ / shares										$ 0.001		$ 0.001
Preferred Stock, Shares Authorized										5,000,000
Preferred Stock, Par or Stated Value Per Share | $ / shares										$ 0.001
Management Incentive Plan, Cash Bonuses, Potential Payout Amount | $	$ 2,000,000										$ 2,000,000
Melody Business Finance LLC [Member]
Number of Shares Held By Lender	2,400
Reverse Stock Split [Member]
Stockholders' Equity Note, Stock Split, Conversion Ratio		75			75		20
Series G Convertible Preferred Stock [Member]
Preferred Stock, Shares Authorized										5,000,000		5,000,000
Preferred Stock, Par or Stated Value Per Share | $ / shares			$ 1,000							$ 0.001		$ 0.001
Preferred Stock Conversion, Price Per Share | $ / shares			$ 7.50
Preferred Stock, Liquidation Preference Percentage, Per Share			100.00%
Convertible Preferred Stock, Maximum Beneficial Ownership Percentage of Common Stock Upon Conversion			9.99%
Convertible Preferred Stock, Beneficial Conversion Feature | $			$ 1,905,570
Series H Convertible Preferred Stock [Member]
Preferred Stock, Par or Stated Value Per Share | $ / shares			$ 1,000
Convertible Preferred Stock, Conversion Price, Minimum Volume-weighted Average Price Used in Computation | $ / shares			$ 9.38
Preferred Stock, Liquidation Preference Percentage, Per Share			100.00%
Convertible Preferred Stock, Maximum Beneficial Ownership Percentage of Common Stock Upon Conversion			9.99%
Series I Preferred Stock [Member]
Stock Issued During Period, Shares, Warrants Exchanged	100
Junior Stock Holder, Amount | $	$ 1,025,437
Preferred Stock, Liquidation Value, Multiplier	25.00%
Preferred Stock, Voting Rights, Number of Votes Per Share for Certain Holders	1
Conversion of Series E Convertible Preferred Stock into Shares of Common Stock [Member]
Conversion of Stock, Shares Converted				500,000
Conversion of Stock, Shares Issued				6,667
Conversion of Series F Convertible Preferred Stock into Common Stock [Member]
Conversion of Stock, Shares Converted									590
Conversion of Stock, Shares Issued									39,334
Conversion of Series D Convertible Preferred Stock into Shares of Series G Convertible Preferred Stock [Member]
Conversion of Stock, Shares Converted			1,233
Conversion of Stock, Shares Issued			938
Conversion of Series F Convertible Preferred Stock into Shares of Series H Convertible Preferred Stock [Member]
Conversion of Stock, Shares Converted			643
Conversion of Stock, Shares Issued			938
Series H Convertible Preferred Stock [Member]
Conversion of Stock, Shares Converted						437
Conversion of Stock, Shares Issued						46,614
Series G Convertible Preferred Stock [Member]
Conversion of Stock, Shares Converted								400
Conversion of Stock, Shares Issued								53,335

Note 10 - Capital Stock - Prefe

Note 10 - Capital Stock - Preferred Stock Designated, Issued and Outstanding (Details) - shares	Dec. 31, 2018	Dec. 31, 2017
Series A Preferred Stock [Member]
Preferred stock, shares designated (in shares)	350,000
Preferred stock, shares issued (in shares)	0	0
Series B Convertible Preferred Stock [Member]
Preferred stock, shares designated (in shares)	892,857
Preferred stock, shares issued (in shares)	0	0
Series C Convertible Preferred Stock [Member]
Preferred stock, shares designated (in shares)	680,000
Preferred stock, shares issued (in shares)	0	0
Series D Convertible Preferred Stock [Member]
Preferred stock, shares designated (in shares)	4,421
Preferred stock, shares issued (in shares)	0	0
Series E Convertible Preferred Stock [Member]
Preferred stock, shares designated (in shares)	2,000,000
Preferred stock, shares issued (in shares)	0	0
Series F Convertible Preferred Stock [Member]
Preferred stock, shares designated (in shares)	1,233
Preferred stock, shares issued (in shares)	0	0
Series G Convertible Preferred Stock [Member]
Preferred stock, shares designated (in shares)	938
Preferred stock, shares issued (in shares)	538	538
Series H Convertible Preferred Stock [Member]
Preferred stock, shares designated (in shares)	938
Preferred stock, shares issued (in shares)	501	501
Series I Preferred Stock [Member]
Preferred stock, shares designated (in shares)	100
Series I preferred stock, shares issued (in shares)	100	0
Series A, B, C, D, E, F, G, H, And I Preferred Stock [Member]
Preferred stock, shares designated (in shares)	3,930,487
Preferred stock, shares issued (in shares)	1,139	1,039

Note 10 - Capital Stock - Pre_2

Note 10 - Capital Stock - Preferred Stock Designated, Issued and Outstanding (Details) (Parentheticals) - shares	Dec. 31, 2018	Dec. 31, 2017
Series A Preferred Stock [Member]
Preferred stock, shares outstanding (in shares)
Series B Convertible Preferred Stock [Member]
Preferred stock, shares outstanding (in shares)
Series C Convertible Preferred Stock [Member]
Preferred stock, shares outstanding (in shares)
Series D Convertible Preferred Stock [Member]
Preferred stock, shares outstanding (in shares)
Series E Convertible Preferred Stock [Member]
Preferred stock, shares outstanding (in shares)
Series F Convertible Preferred Stock [Member]
Preferred stock, shares outstanding (in shares)
Series G Convertible Preferred Stock [Member]
Preferred stock, shares outstanding (in shares)	538	538
Series H Convertible Preferred Stock [Member]
Preferred stock, shares outstanding (in shares)	501	501
Series I Preferred Stock [Member]
Series I preferred stock, shares outstanding (in shares)	100	0
Series A, B, C, D, E, F, G, H, And I Preferred Stock [Member]
Preferred stock, shares outstanding (in shares)	1,139	1,039

Note 11 - Stock Option Plans _3

Note 11 - Stock Option Plans and Warrants (Details Textual) - USD ($)

May 24, 2018

May 15, 2017

Feb. 03, 2017

Jan. 24, 2017

Dec. 31, 2018

Dec. 31, 2017

Feb. 28, 2017

Feb. 27, 2017

Dec. 31, 2016

Sep. 30, 2016

Nov. 30, 2013

Nov. 30, 2012

Nov. 29, 2012

Aug. 31, 2008

May 31, 2007

Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period

10 years

Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross

15,868

102

51,090

Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price

$ 2.40

$ 12.77

Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value

$ 0

Share Price

$ 13.50

$ 2.10

Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage

100.00%

Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value

$ 1.76

$ 9.65

Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number, Ending Balance

72,807

76,601

28,232

Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price, Ending Balance

$ 116.53

$ 117.42

$ 404.82

Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term

7 years 328 days

Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number

51,952

Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price

$ 156.83

Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term

7 years 328 days

Class of Warrant or Right, Outstanding

2,400

2,400

Series I Preferred Stock [Member]

Stock Issued During Period, Shares, Warrants Exchanged

100

Warrant [Member]

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Outstanding

$ 0

Non-employee [Member]

Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross

334

Director [Member]

Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross

102

170

Executive Officer [Member]

Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross

50,586

Chief Executive Officer [Member]

Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross

6,676

Chief Operating Officer [Member]

Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross

5,854

Chief Financial Officer [Member]

Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross

3,338

Maximum [Member]

Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price, Ending Balance

$ 7,845

Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price

7,845

Minimum [Member]

Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price, Ending Balance

2.40

Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price

$ 2.40

The 2008 Directors Plan [Member]

Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized

1,334

667

Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period

1,174

Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period

10 years

Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant

160

The 2016 Equity Incentive Plan [Member]

Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized

33,618

19,134

19,134

9,094

Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period

69,184

Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross

436

The 2016 Equity Incentive Plan [Member] | Non-employee [Member]

Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized

3,334

Employee Stock Option [Member]

Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant

1,487

Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Total

$ 61,432

Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition

1 year

Employee Stock Option [Member] | General and Administrative Expense [Member]

Allocated Share-based Compensation Expense, Total

$ 161,394

$ 931,382

Employee Stock Option [Member] | Director [Member]

Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period

1 year

Employee Stock Option [Member] | Maximum [Member]

Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period

10 years

Employee Stock Option [Member] | Maximum [Member] | Non-employee [Member]

Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period

1 year

Employee Stock Option [Member] | Maximum [Member] | Executive Officer [Member]

Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period

2 years

Employee Stock Option [Member] | Maximum [Member] | Executive Officer [Member] | Vest Quarterly Over Next Three Years [Member]

Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period

3 years

Employee Stock Option [Member] | Maximum [Member] | Employee [Member]

Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period

3 years

Employee Stock Option [Member] | Minimum [Member]

Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period

5 years

Employee Stock Option [Member] | Minimum [Member] | Non-employee [Member]

Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period

180 days

Employee Stock Option [Member] | Minimum [Member] | Executive Officer [Member]

Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period

1 year

Employee Stock Option [Member] | Minimum [Member] | Employee [Member]

Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period

1 year

Employee Stock Option [Member] | The 2007 Plan [Member]

Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized

1,603

Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period

887

Employee Stock Option [Member] | The 2007 Incentive Stock Plan [Member]

Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized

3,334

1,667

1,667

Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period

2,563

Stock Options [Member] | The 2016 Equity Incentive Plan and 2016 Non-employee Incentive Plan [Member] | Maximum [Member]

Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period

10 years

Stock Options, Employment Agreement [Member]

Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period

10 years

Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross

7,556

27,162

Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price

$ 12.75

Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross Percentage of Common Stock

2.00%

Stock Options, Employment Agreement [Member] | Vest on January 24, 2018 [Member]

Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross

4,178

Stock Options, Employment Agreement [Member] | Vest in Eight Quarterly Installments During the Twenty-four Months Ending January 24, 2020 [Member]

Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross

8,358

Stock Options, Employment Agreement [Member] | Vest Upon the Achievement of Three Consecutive Quarters of Positive Cash Flow [Member]

Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross

7,313

Stock Options, Employment Agreement [Member] | Vest Upon Sale of Earth Station Assets in Miami, Florida for Gross Proceeds Equal to or Greater than $15,000,000 [Member]

Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross

7,313

Stock Options, Employment Agreement [Member] | Share-based Compensation Award, Tranche One [Member]

Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period

1 year

Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage

25.00%

Stock Options, Employment Agreement [Member] | Share Based Compensation Award Tranches Two Three and Four [Member]

Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period

3 years

Performance Shares [Member]

Share-based Compensation Arrangement by Share-based Payment Award, Options, Granted in Period, Fair Value

$ 140,708

Note 11 - Stock Option Plans _4

Note 11 - Stock Option Plans and Warrants - Black-Scholes Option Pricing Model Assumptions (Details)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Risk-free interest rate	2.70%
Expected volatility	105.00%
Expected life (in years) (Year)	4 years 73 days	4 years 73 days
Estimated forfeiture rates	20.00%	20.00%
Minimum [Member]
Risk-free interest rate		1.60%
Expected volatility		110.00%
Maximum [Member]
Risk-free interest rate		1.70%
Expected volatility		113.00%
Estimated forfeiture rates

Note 11 - Stock Option Plans _5

Note 11 - Stock Option Plans and Warrants - Option Transactions Under the Stock Option Plans (Details) - $ / shares	Feb. 03, 2017	Dec. 31, 2018	Dec. 31, 2017
Outstanding (in shares)		76,601	28,232
Outstanding, weighted average exercise price (in dollars per share)		$ 117.42	$ 404.82
Granted (in shares)	15,868	102	51,090
Granted, weighted average exercise price (in dollars per share)		$ 2.40	$ 12.77
Exercised (in shares)
Exercised, weighted average exercise price (in dollars per share)
Forfeited /expired (in shares)		(3,896)	(2,721)
Forfeited /expired, weighted average exercise price (in dollars per share)		$ 134.50	$ 1,134.23
Outstanding (in shares)		72,807	76,601
Outstanding, weighted average exercise price (in dollars per share)		$ 116.53	$ 117.42
Exercisable (in shares)		51,952
Exercisable, weighted average exercise price (in dollars per share)		$ 156.83

Note 11 - Stock Option Plans _6

Note 11 - Stock Option Plans and Warrants - Grants Under Stock Option Plans (Details) - shares	Feb. 03, 2017	Dec. 31, 2018	Dec. 31, 2017
Granted (in shares)	15,868	102	51,090
Director [Member]
Granted (in shares)		102	170
Executive Officer [Member]
Granted (in shares)			50,586
Non-employee [Member]
Granted (in shares)			334

Note 11 - Stock Option Plans _7

Note 11 - Stock Option Plans and Warrants - Forfeited or Expired Options Under Stock Option Plans (Details) - shares	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Employee terminations (in shares)	3,756	2,619
Expired (in shares)	140	102
Total (in shares)	3,896	2,721

Note 11 - Stock Option Plans _8

Note 11 - Stock Option Plans and Warrants - Summary of Warrant Activity (Details)	24 Months Ended
	Dec. 31, 2018$ / sharesshares
Outstanding, number (in shares) | shares	2,400
Outstanding, weighted average exercise price (in dollars per share) | $ / shares	$ 1,265.25
Exchanged, number (in shares) | shares	(2,400)
Exchanged, weighted average exercise price (in dollars per share) | $ / shares	$ 1,265.25
Outstanding, number (in shares) | shares
Outstanding, weighted average exercise price (in dollars per share) | $ / shares

Note 12 - Employee Benefit Pr_2

Note 12 - Employee Benefit Programs (Details Textual)	12 Months Ended
	Dec. 31, 2018USD ($)shares	Dec. 31, 2017USD ($)shares
Defined Contribution Plan, Eligibility Requirements, Minimum Age of Employees	21
Defined Contribution Plan, Eligibility Requirements, Minimum Length of Employment	30 days
Defined Contribution Plan, Employer Discretionary Contribution Amount	$ 0	$ 0
Stock Issued During Period, Value, Employee Stock Purchase Plan		$ 358
2010 Employee Stock Purchase Plan [Member]
Percentage Of Discount Allowed For Shares Issued Under Employee Stock Purchase Plan	15.00%	15.00%
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized | shares	334
Stock Issued During Period, Shares, Employee Stock Purchase Plans | shares	0	30
Stock Issued During Period, Value, Employee Stock Purchase Plan	$ 0	$ 358
Defined Contribution Plan, Cost	$ 0	$ 52

Note 13 - Income Taxes (Details

Note 13 - Income Taxes (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%	34.00%
Revaluation of Deferred Tax Assets		$ (3,940,628)
Revaluation of Deferred Tax Liabilities		(203,738)
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	$ 2,509,038	1,068,307
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense, Total	0	0
Taxable Income (Loss)	(2,132,000)	(8,536,000)
Operating Loss Carryforwards, Total	$ 18,227,000	16,095,000
Deferred Tax Assets Revaluated Under New Tax Rate [Member]
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount		$ (3,791,030)
Earliest Tax Year [Member] | Domestic Tax Authority [Member]
Open Tax Year	2015
Latest Tax Year [Member] | Domestic Tax Authority [Member]
Open Tax Year	2018

Note 13 - Income Taxes - Provis

Note 13 - Income Taxes - Provision for Income Taxes (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Federal	$ 0	$ 0
State	0	0
Total current	0	0
Federal	(2,213,273)	(896,114)
State	(632,364)	(256,033)
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	2,509,038	1,068,307
Total deferred	(336,598)	(83,840)
Provision for income taxes	$ (336,598)	$ (83,840)

Note 13 - Income Taxes - Effect

Note 13 - Income Taxes - Effective Tax Rate Reconciliation (Details)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
U.S. federal statutory rate	(21.00%)	(34.00%)
State taxes	(6.00%)	(5.00%)
Permanent differences		0.10%
Change of federal deferred tax rate		29.70%
Change in valuation allowance	23.80%	8.50%
Effective tax rate	(3.20%)	(0.70%)

Note 13 - Income Taxes - Deferr

Note 13 - Income Taxes - Deferred Tax Assets (Liabilities) (Details) - USD ($)	Dec. 31, 2018	Dec. 31, 2017
Deferred tax assets
Net operating loss carryforwards	$ 4,921,264	$ 4,345,624
Stock-based compensation	2,324,392	2,280,815
Intangible assets	1,280,812	1,094,799
Debt discount	948,572	831,717
Allowance for doubtful accounts	41,611	25,889
Interest expense limitation	1,515,513
Depreciation	316,797
Other	286,800	287,571
Total deferred tax assets	11,635,761	8,866,415
Valuation allowance	(11,253,638)	(8,744,600)
Deferred tax assets, net of valuation allowance	382,123	121,815
Deferred tax liabilities
Depreciation		(121,815)
Intangible assets	(382,123)	(336,597)
Total deferred tax liabilities	(382,123)	(458,412)
Net deferred tax liabilities		$ (336,597)

Note 14 - Fair Value Measurem_3

Note 14 - Fair Value Measurement - Fair Value of Assets and Liabilities (Details) - USD ($)	Dec. 31, 2018	Dec. 31, 2017
Reported Value Measurement [Member]
Cash and Cash Equivalents	$ 4,173,070	$ 7,568,982
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member]
Cash and Cash Equivalents	4,173,070	7,568,982
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member]
Cash and Cash Equivalents
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member]
Cash and Cash Equivalents

Note 15 - Revenues (Details Tex

Note 15 - Revenues (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Revenue from Contract with Customer, Including Assessed Tax	$ 24,604,310	$ 26,212,550
Deferred Installation Fees	131,877
Deferred Commission Costs	178,333
Deferred Revenue [Member]
Deferred Installation Fees	93,406
Other Noncurrent Liabilities [Member]
Deferred Installation Fees	38,471
Other Current Assets [Member]
Deferred Commission Costs	136,410
Other Assets [Member]
Deferred Commission Costs	$ 41,923
Minimum [Member]
Wireless Internet Service, General Term of Contract	1 year
Maximum [Member]
Wireless Internet Service, General Term of Contract	3 years
Accounting Standards Update 2014-09 [Member]
Revenue from Contract with Customer, Including Assessed Tax	$ 131,877

Note 16 - Commitments (Details

Note 16 - Commitments (Details Textual) - USD ($)	Jun. 30, 2017	Apr. 30, 2017	Oct. 31, 2017	Dec. 31, 2018
Virginia Sales Office [Member]
Operating Lease, Annual Rent		$ 32,021
Virginia Second Sales Office [Member]
Operating Lease, Annual Rent	$ 20,734
Corporate Offices [Member]
Lessee, Operating Lease, Renewal Term			5 years
Operating Lease, Annual Rent			$ 183,256
Annual Increase in Operating Lease Rent Expense			2.50%
Maximum [Member]
Lessee, Operating Lease, Renewal Term				15 years
Maximum [Member] | Corporate Offices [Member]
Operating Lease, Annual Rent			$ 213,422

Note 16 - Commitments - Total F

Note 16 - Commitments - Total Future Operating Lease Obligations (Details)	Dec. 31, 2018USD ($)
2019	$ 7,286,466
2020	5,231,865
2021	3,134,185
2022	1,918,867
2023	681,014
Thereafter	311,412
Total	$ 18,563,809

Note 16 - Commitments - Rent Ex

Note 16 - Commitments - Rent Expenses (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Lease and Rental Expense	$ 10,286,434	$ 9,849,494
Points of Presence [Member]
Lease and Rental Expense	9,071,856	8,693,892
Corporate Offices [Member]
Lease and Rental Expense	248,045	220,309
Other Leased Property [Member]
Lease and Rental Expense	$ 966,533	$ 935,293

Note 16 - Commitments - Total_2

Note 16 - Commitments - Total Future Capital Lease Obligations (Details) - USD ($)	Dec. 31, 2018	Dec. 31, 2017
2019	$ 388,501
2020	300,374
2021	9,523
Sub-Total	698,398
Less: Interest expense	60,676
Total capital lease obligations	637,722
Current	341,975	$ 382,918
Long-Term	$ 295,747	$ 305,947

Note 17 - Subsequent Events (De

Note 17 - Subsequent Events (Details Textual) - Melody Business Finance LLC [Member] - Secured Debt [Member] - USD ($)	Jan. 31, 2019	Apr. 15, 2018	Jan. 26, 2018
Debt Covenant, Deposit and Securities Accounts, Minimum Balance, Waived		$ 6,500,000	$ 6,500,000
Debt Covenant, Deposit and Securities Accounts, Minimum Balance, Termination of Forbearance Period		$ 3,000,000	$ 4,000,000
Subsequent Event [Member]
Debt Covenant, Deposit and Securities Accounts, Minimum Balance, Waived	$ 6,500,000
Debt Covenant, Deposit and Securities Accounts, Minimum Balance, Termination of Forbearance Period	$ 2,000,000