Safe & Green (SGBX) 10-Q 14 Aug 19 2019 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2019	Aug. 10, 2019
Document and Entity Information [Abstract]
Entity Registrant Name	SG BLOCKS, INC.
Entity Central Index Key	0001023994
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Type	10-Q
Document Period End Date	Jun. 30, 2019
Document Fiscal Period Focus	Q2
Document Fiscal Year Focus	2019
Entity Filer Category	Non-accelerated Filer
Entity Current Reporting Status	Yes
Entity Shell Company	false
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Ex Transition Period	false
Entity Common Stock, Shares Outstanding		6,007,791
Entity File Number	001-38037
Entity Address, Address Line One	195 Montague Street,
Entity Address, City or Town	Brooklyn
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	11201
Entity Tax Identification Number	954463937
City Area Code	(646)
Local Phone Number	240-4235

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($)	Jun. 30, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 173,902	$ 1,368,395
Accounts receivable, net	1,448,506	1,746,326
Costs and estimated earnings in excess of billings on uncompleted contracts	20,801	260,325
Prepaid expenses and other current assets	230,294	986,687
Total current assets	1,873,503	4,361,733
Property, plant and equipment, net	65,036	71,337
Goodwill	4,162,173	4,162,173
Intangible assets, net	2,371,367	2,443,929
Total Assets	8,472,079	11,039,172
Current liabilities:
Accounts payable and accrued expenses	1,669,328	2,624,218
Billings in excess of costs and estimated earnings on uncompleted contracts	184,429	1,334,887
Total current liabilities	1,853,757	3,959,105
Commitments and contingencies (Note 12)
Stockholders’ equity:
Preferred stock, $1.00 par value, 5,405,010 shares authorized; none issued or outstanding
Common stock, $0.01 par value, 25,000,000 shares authorized; 5,107,791 issued and outstanding as of June 30, 2019 and 300,000,000 shares authorized; 4,260,041 issued and outstanding as of December 31, 2018	51,079	42,601
Additional paid-in capital	18,692,964	17,700,743
Accumulated deficit	(12,125,721)	(10,663,277)
Total stockholders’ equity	6,618,322	7,080,067
Total Liabilities and Stockholders’ Equity	$ 8,472,079	$ 11,039,172

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares	Jun. 30, 2019	Dec. 31, 2018
Statement of Financial Position [Abstract]
Preferred stock, par value	$ 1	$ 1
Preferred stock, shares authorized	5,405,010	5,405,010
Preferred stock, shares issued
Preferred stock, shares outstanding
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	25,000,000	300,000,000
Common stock, shares issued	5,107,791	4,260,041
Common stock, shares outstanding	5,107,791	4,260,041

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Revenue:
Revenue	$ 727,908	$ 2,305,797	$ 2,463,032	$ 3,849,325
Cost of revenue:
Cost of revenue	460,590	2,274,225	1,651,609	3,654,155
Gross profit	267,318	31,572	811,423	195,170
Operating expenses:
Payroll and related expenses	645,627	572,612	1,284,177	978,029
General and administrative expenses	506,664	555,087	839,664	981,362
Marketing and business development expense	84,216	97,541	131,575	178,588
Pre-project expenses	2,520	45,000	18,451	49,964
Total	1,239,027	1,270,240	2,273,867	2,187,943
Operating loss	(971,709)	(1,238,668)	(1,462,444)	(1,992,773)
Other income (expense):
Interest income				4
Other income		5,764		5,764
Total		5,764		5,768
Loss before income taxes	(971,709)	(1,232,904)	(1,462,444)	(1,987,005)
Income tax expense
Net loss	$ (971,709)	$ (1,232,904)	$ (1,462,444)	$ (1,987,005)
Net loss per share - basic and diluted:
Basic and diluted	$ (0.20)	$ (0.29)	$ (0.32)	$ (0.47)
Weighted average shares outstanding:
Basic and diluted	4,837,629	4,260,041	4,552,004	4,260,041
Blocks sales
Revenue:
Revenue			$ 42,799	$ 42,799
Cost of revenue:
Cost of revenue			33,084	33,084
Construction services
Revenue:
Revenue	675,170	2,262,998	2,333,244	3,806,526
Cost of revenue:
Cost of revenue	435,671	2,241,141	1,594,900	3,621,071
Engineering services
Revenue:
Revenue	52,738		129,788
Cost of revenue:
Cost of revenue	$ 24,919		$ 56,709

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Changes In Stockholders' Equity - USD ($)	Total	0.01 Par Value Common Stock	Additional Paid-in Capital	Accumulated Deficit
Beginning Balance at Dec. 31, 2017	$ 11,527,874	$ 42,601	$ 17,304,529	$ (5,819,256)
Beginning Balance, Shares at Dec. 31, 2017		4,260,041
Stock-based compensation	165,314		165,314
Net loss	(1,987,005)			(1,987,005)
Ending Balance at Jun. 30, 2018	9,706,183	$ 42,601	17,469,843	(7,806,261)
Ending Balance, Shares at Jun. 30, 2018		4,260,041
Beginning Balance at Mar. 31, 2018	10,853,762	$ 42,601	17,384,518	(6,573,357)
Beginning Balance, Shares at Mar. 31, 2018		4,260,041
Stock-based compensation	85,325		85,325
Net loss	(1,232,904)			(1,232,904)
Ending Balance at Jun. 30, 2018	9,706,183	$ 42,601	17,469,843	(7,806,261)
Ending Balance, Shares at Jun. 30, 2018		4,260,041
Beginning Balance at Dec. 31, 2018	7,080,067	$ 42,601	17,700,743	(10,663,277)
Beginning Balance, Shares at Dec. 31, 2018		4,260,041
Stock-based compensation	447,990		447,990
Issuance of common stock, net of issuance costs	552,709	$ 8,478	544,231
Issuance of common stock, net of issuance costs, Shares		847,750
Net loss	(1,462,444)			(1,462,444)
Ending Balance at Jun. 30, 2019	$ 6,618,322	$ 51,079	$ 18,692,964	$ (12,125,721)
Ending Balance, Shares at Jun. 30, 2019		5,107,791
Beginning Balance at Mar. 31, 2019		$ 42,601
Beginning Balance, Shares at Mar. 31, 2019	6,806,140	4,260,041	17,917,551	(11,154,012)
Stock-based compensation	$ 231,182		$ 231,182
Issuance of common stock, net of issuance costs	552,709	$ 8,478	544,231
Issuance of common stock, net of issuance costs, Shares		847,750
Net loss	(971,709)			$ (971,709)
Ending Balance at Jun. 30, 2019	$ 6,618,322	$ 51,079	$ 18,692,964	$ (12,125,721)
Ending Balance, Shares at Jun. 30, 2019		5,107,791

Condensed Consolidated Statem_3

Condensed Consolidated Statement of Cash Flows - USD ($)	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Cash flows from operating activities:
Net loss	$ (1,462,444)	$ (1,987,005)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation expense	6,301	1,879
Amortization of intangible assets	72,562	294,632
Bad debt expense (benefit)	(54,000)
Interest income on short-term investment		(4)
Stock-based compensation	339,361	165,314
Changes in operating assets and liabilities:
Accounts receivable	351,820	778,191
Cost and estimated earnings in excess of billings on uncompleted contracts	239,524	(70,217)
Prepaid expenses and other current assets	756,393	(52,436)
Accounts payable and accrued expenses	(846,261)	(159,237)
Billings in excess of costs and estimated earnings on uncompleted contracts	(1,150,458)	(847,580)
Net cash used in operating activities	(1,747,202)	(1,876,463)
Cash flows provided by investing activities:
Proceeds from short-term investment		30,037
Purchase of property, plant and equipment		(3,784)
Net cash used in investing activities		26,253
Cash flows from financing activities:
Proceeds from public stock offering, net of issuance costs	552,709
Net cash provided by financing activities	552,709
Net decrease in cash and cash equivalents	(1,194,493)	(1,850,210)
Cash and cash equivalents - beginning of period	1,368,395	4,870,824
Cash and cash equivalents - end of period	173,902	3,020,614
Supplemental disclosure of non-cash investing and financing activities:
Non cash conversion of salary liability to restricted stock units	$ 108,629

Description of Business

Description of Business	6 Months Ended
	Jun. 30, 2019
Description of Business [Abstract]
Description of Business	1 Description of Business SG Blocks, Inc. (collectively with its subsidiaries, the “Company,” “we”, “us” or “our”) The Company provides two commercial, industrial and residential building construction. The Company provides SGBlocks TM shipping containers that the Company modifies for use in construction. Rather than consuming new steel and lumber, SGBlocks TM repurposes them for use in building. They offer the construction industry a safer, greener, faster, longer lasting and more economical alternative to conventional construction methods. The Company also provides purpose-built modules (“SGPBMs” and, together with SGBlocks TM “Modules”), which are prefabricated steel modular units created specifically for use in modular construction, unlike the shipping containers used to create SGBlocks TM . The Company also provides engineering and project management services related to the use and modification of Modules in construction.

Liquidity

Liquidity	6 Months Ended
	Jun. 30, 2019
Liquidity [Abstract]
Liquidity	2. Liquidity T he Company ha As of June 30, 2019 173,902 70.8 8 2019 Within 1 $ 14,324,626 1 2 34,500,000 Thereafter 21,944,107 Total Backlog $ 70,768,733 The Company completed an equity offering in April 2019, which resulted in net proceeds of approximately $552,709. See Note 9 T 587,000 13 The Company does not have any additional sources secured for future funding, and if it is unable to raise the necessary capital at the times it requires such funding, it may need to materially change its business plan, including delaying implementation of aspects of such business plan or curtailing or abandoning such business plan altogether. On July 1, 2019, the Company received a letter from The Nasdaq Stock Market LLC (“Nasdaq”) notifying the Company that, because the closing bid price for the Company’s common stock listed on Nasdaq was below $1.00 for 30 5550 2 Pursuant to Nasdaq Listing Rule 5810 3 180 ten 180 If the Company does not regain compliance with Rule 5550 2 180 The Company intends to monitor the closing bid price of its common stock and consider its available options in the event that the closing bid price of its common stock remains below $1.00 per share. There can be no assurance that the Company will be able to regain compliance with the minimum bid price requirement or maintain compliance with the other listing requirements

Summary of Significant Accounti

Summary of Significant Accounting Policies	6 Months Ended
	Jun. 30, 2019
Summary of Significant Accounting Policies [Abstract]
Summary of Significant Accounting Policies	3 Summary of Significant Accounting Policies Basis of presentation and principals of consolidation – The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 8 The condensed consolidated financial statements and notes should be read in conjunction with the financial statements and notes for the year ended December 31, 2018 December 31, 2018 , as filed with the Securities and Exchange Commission on March 29, 2019. In the opinion of management, all adjustments, consisting of normal accruals, considered necessary for a fair presentation of the interim financial statements have been included. Results for the six months ended June 30, 2019 The accompanying unaudited condensed consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries, SG Building Blocks, Recently adopted accounting pronouncements – New accounting pronouncements implemented by the Company are discussed below or in the related notes, where appropriate. In February 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2016 - 02 , “Leases (Topic 842 )” (“ASU 2016 - 02 ”). The 2016 - 02 twelve 2018 - 11 , “Leases (Topic 842 ): Targeted Improvements” (“ASU 2018 - 11 ”), which provides entities with an additional transition method. Under ASU 2018 - 11 , entities have the option of recognizing the cumulative effect of applying the new standard as an adjustment to beginning retained earnings in the year of adoption while continuing to present all prior periods under previous lease accounting guidance. In July 2018, the FASB also issued ASU No. 2018 - 10 , “Codification Improvements to Topic 842 , Leases” (“ASU 2018 - 10 ”), which clarifies how to apply certain aspects of ASU 2016 - 02 . The Company adopted ASU 2016 - 02 , ASU 2018 - 10 2018 - 11 effective he Company had no operating or finance lease agreements as of June 30, 2019 . The adoption of ASU No. 2016 - 02 did not have a In June 2018, the FASB issued ASU No. 2018 07 718 2018 07 718 2018 07 718 718 2018 07 718 1 2 606 2018 07 The adoption of ASU No. 2018 07 Recently issued accounting pronouncements not yet adopted – In January 2017, the FASB issued ASU No. 2017 04 2017 04 2 2017 04 In August 2018, the FASB issued ASU No. 2018 13 2018 13 820 3 2018 13 2018 13 Accounting estimates Operating cycle – six twelve In some instances, the length of the contract may exceed twelve one Revenue recognition – The Company applies recognition of revenue over time, which is similar to the method the Company applied under previous guidance (i.e., percentage of completion). The Company determines, at contract inception, whether it will transfer control of a promised good or service over time or at a point in time—regardless of the length of contract or other factors. The recognition of revenue aligns with the timing of when promised goods or services are transferred to customers in an amount that reflects the consideration to which the Company expects to be entitled in exchange for those goods or services. To achieve this core principle, the Company applies the following five ( 1 Identify the contract with a customer; ( 2 Identify the performance obligations in the contract; ( 3 Determine the transaction price; ( 4 Allocate the transaction price to performance obligations in the contract; and ( 5 Recognize revenue as performance obligations are satisfied. Due to uncertainties inherent in the estimation process, it is possible that estimates of costs to complete a performance obligation will be revised in the near-term. For those performance obligations for which revenue is recognized using a cost-to-cost input method, changes in total estimated costs, and related progress toward complete satisfaction of the performance obligation, are recognized on a cumulative catch-up basis in the period in which the revisions to the estimates are made. When the current estimate of total costs for a performance obligation indicate a loss, a provision for the entire estimated loss on the unsatisfied performance obligation is made in the period in which the loss becomes evident. Disaggregation of Revenues The Company’s revenues are principally derived from construction and engineering contracts related to Modules. Our contracts are with many different customers in numerous industries. The following tab her disaggregation of the Company’s revenues by categories: Three Months Ended June 30, Revenue by Customer Type 2019 2018 Multi-Family $ 41,319 6 % $ 210,814 9 % Office 82,294 11 % 229,727 10 % Retail 606,725 83 % 416,976 18 % School — — % 1,100,403 48 % Special Use — — % 330,965 14 % Other (2,430 ) — % 16,912 1 % Total revenue by customer type $ 727,908 100 % $ 2,305,797 100 % Six Months Ended June 30, Revenue by Customer Type 2019 2018 Multi-Family $ 112,191 5 % $ 210,814 5 % Office 1,207,897 49 % 593,356 15 % Retail 1,137,384 46 % 531,920 14 % School — — % 1,860,238 48 % Special Use 6,812 — % 636,085 17 % Other (1,252 ) — % 16,912 1 % Total revenue by customer type $ 2,463,032 100 % $ 3,849,325 100 % Contract Assets and Contract Liabilities Accounts receivable are recognized in the period when the Company’s right to consideration is unconditional. Accounts receivable are recognized net of an allowance for doubtful accounts. A considerable amount of judgment is required in assessing the likelihood of realization of receivables. The timing of revenue recognition may differ from the timing of invoicing to customers. Contract assets include unbilled amounts from long-term construction services when revenue recognized under the cost-to-cost measure of progress exceeds the amounts invoiced to customers, as the amounts cannot be billed under the terms of our contracts. Such amounts are recoverable from customers based upon various measures of performance, including achievement of certain milestones, completion of specified units or completion of a contract. Contract assets are generally classified as current within the condensed consolidated balance sheets and labeled as “costs and estimated earnings in excess of billings on uncompleted contracts”. Contract liabilities from construction and engineering contracts occur when amounts invoiced to customers exceed revenues recognized under the cost-to-cost measure of progress. Contract liabilities additionally include advanced payments from customers on certain contracts. Contract liabilities decrease as the Company recognizes revenue from the satisfaction of the related performance obligation. Contract liabilities are generally classified as current within the condensed consolidated balance sheet and labeled as “billings in excess of costs and estimated earnings on uncompleted contracts”. Although the Company believes it has established adequate procedures for estimating costs to complete on open contracts, it is at least reasonably possible that additional significant costs could occur on contracts prior to completion. The Company periodically evaluates and revises its estimates and makes adjustments when they are considered necessary. Cash and cash equivalents – The Company considers cash and cash equivalents to include all short-term, highly liquid investments that are readily convertible to known amounts of cash and have original maturities of three June 30, 2019 $ as of December 31, 2018 . Short-term investment – The Company classifies any investment with a maturity greater than six months one no June 30, 2019 December 31, 2018 Accounts receivable and allowance for doubtful accounts – Accounts receivable are receivables generated from sales to customers and progress billings on performance type contracts. Amounts included in accounts receivable are deemed to be collectible within the Company’s operating cycle. The Company recognizes account receivable at invoiced amounts. The allowance for doubtful accounts reflects the Company's best estimate of probable losses inherent in the accounts receivable balances. Management provides an allowance for doubtful accounts based on the Company’s historical losses, specific customer circumstances, and general economic conditions. Periodically, management reviews accounts receivable and adjusts the allowance based on current circumstances and charges off uncollectible receivables when all attempts to collect have been exhausted and the prospects for recovery are remote. Recoveries are recognized when they are received. Actual collection losses may differ from the Company’s estimates and could be material to its consolidated financial position, result of operations, and cash flows. Inventory – Raw construction materials (primarily shipping containers) are valued at the lower of cost (first-in, first-out method) or net realizable value. Finished goods and work-in-process inventories are valued at the lower of cost or net realizable value, using the specific identification method. There was no inventory as of June 30, 2019 December 31, 2018 Goodwill – The Company performs its impairment test of goodwill at the reporting unit level each fiscal year, or more frequently if events or circumstances change that would more likely than not reduce the fair value of its reporting unit below its carrying values. The Company first assesses qualitative factors to determine whether it is more likely than not that the fair value of the reporting unit is less than its carrying amount, including goodwill. If management concludes that it is more likely than not that the fair value of the reporting unit is less than its carrying amount, management conducts a two December 31, 2018 I ntangible assets – Intangible assets represent the preliminary assets identified upon emergence from bankruptcy and consist of $ 2,766,000 20 1,113,000 2.5 28,820 $ 5,300 5 December 31, 2018 June 30, 2019 2018 The amortization expense for the three months ended June 30, 2019 and 2018 was $ 36,281 and $ 147,316, respectively. The amortization expense for the six months ended June 30, 2019 and 2018 was $ and $ , respectively. The estimated amortization expense for the successive five years is as follows: For the year ended December 31, 2019 $ 72,562 2020 145,124 2021 145,124 2022 140,800 2023 139,007 Thereafter 1,728,750 $ 2,371,367 Property, plant and equipment – Property, plant and equipment is stated at cost. Depreciation is computed using the straight-line method over the estimated lives of each asset. Estimated useful life for significant classes of assets are as follows: computer and software 3 to 5 years and equipment o Common stock purchase warrants and other derivative financial instruments – The Company classifies as equity any contracts that (i) require physical settlement or net-share settlement or (ii) provide a choice of net-cash settlement or settlement in the Company’s own shares (physical settlement or net-share settlement) providing that such contracts are indexed to the Company’s own stock. The Company classifies as assets or liabilities any contracts that (i) require net-cash settlement (including a requirement to net cash settle the contract if any event occurs and if that event is outside the Company’s control) or (ii) give the counterparty a choice of net-cash settlement or settlement in shares (physical settlement or net-share settlement). The Company assesses classification of common stock purchase warrants and other free standing derivatives at each reporting date to determine whether a change in classification between assets and liabilities or equity is required. Fair value measurements – Financial instruments, including cash and cash equivalents, accounts receivable, accounts payable and accrued liabilities, are carried at cost, which the Company believes approximates fair value due to the short-term nature of these instruments. The Company measures the fair value of financial assets and liabilities based on the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. The Company maximizes the use of observable inputs and minimizes the use of unobservable inputs when measuring fair value. The Company uses three Level 1 Quoted prices in active markets for identical assets or liabilities. Level 2 Quoted prices for similar assets and liabilities in active markets or inputs that are observable. Level 3 Inputs that are unobservable (for example, cash flow modeling inputs based on assumptions). Share-based payments – The Company measures the cost of services received in exchange for an award of equity instruments based on the fair value of the award. For employees and directors, including non-employee directors, the fair value of a stock option award is measured on the grant date. The fair value amount is then recognized over the period services are required to be provided in exchange for the award, usually the vesting period. The Company recognizes stock-based compensation expense on a graded-vesting basis over the requisite service period for each separately vesting tranche of each award. Stock-based compensation expense to employees and all directors is reported within payroll and related expenses in the consolidated statements of operations. Stock-based compensation expense to non-employees is reported within marketing and business development expense in the consolidated statements of operations. Income taxes – The Company accounts for income taxes utilizing the asset and liability approach. Under this approach, deferred taxes represent the future tax consequences expected to occur when the reported amounts of assets and liabilities are recovered or paid. The provision for income taxes generally represents income taxes paid or payable for the current year plus the change in deferred taxes during the year. Deferred taxes result from the differences between the financial and tax bases of the Company’s assets and liabilities and are adjusted for changes in tax rates and tax laws when changes are enacted. The calculation of tax liabilities involves dealing with uncertainties in the application of complex tax regulations. The Company recognizes liabilities for anticipated tax audit issues based on the Company’s estimate of whether, and the extent to which, additional taxes will be due. If payment of these amounts ultimately proves to be unnecessary, the reversal of the liabilities would result in tax benefits being recognized in the period when the liabilities are no longer determined to be necessary. If the estimate of tax liabilities proves to be less than the ultimate assessment, a further charge to expense would result. Concentrations of credit risk – Financial instruments that potentially subject the Company to concentration of credit risk consist principally of cash and cash equivalents. The Company places its cash with high credit quality institutions. At times, such amounts may be in excess of the FDIC insurance limits. The Company has not experienced any losses in its account and believes that it is not exposed to any significant credit risk on the account. With respect to receivables, concentrations of credit risk are limited to a few customers in the construction industry. The Company performs ongoing credit evaluations of its customers’ financial condition and, generally, requires no collateral from its customers other than normal lien rights. At June 30, 2019 December 31, 2018 76 Revenue relating to two customers represented approximately 91% and 60% of the Company’s total revenue for the three months June 30, 2019 2018 Revenue relating to two and one customers represented approximately 87 % and 48 % of the Company’s total revenue for the six months June 30, 2019 2018 , respectively. Cost of revenue relating to three two vendors represented approximately 92 % and 73 % of the Company’s total cost of revenue for the three months ended June 30, 2019 2018 , respectively. 60 six months June 30, 2019 2018

Accounts Receivable

Accounts Receivable	6 Months Ended
	Jun. 30, 2019
Accounts Receivable [Abstract]
Accounts Receivable	4. Accounts Receivable At June 30, 2019 December 31, 2018 June 30, 2019 December 31, 2018 Billed: Block sales $ — $ 14,723 Construction services 1,373,493 1,619,498 Engineering services 307,991 400,877 Retainage receivable 544,911 543,417 Other receivable 8,006 7,706 Total gross receivables 2,234,401 2,586,221 Less: allowance for doubtful accounts ( 1 (785,895 ) (839,895 ) Total net receivables $ 1,448,506 $ 1,746,326 ( 1 The allowance for doubtful accounts is primarily due to unpaid billings on a contract that is currently in dispute. Receivables are June 30, 2019 no six months June 30, 2019 December 31, 2018

Contract Assets and Contract Li

Contract Assets and Contract Liabilities	6 Months Ended
	Jun. 30, 2019
Contract Assets and Contract Liabilities [Abstract]
Contract Assets and Contract Liabilities	5 Contract Assets and Contract Liabilities Costs and estimated earnings on uncompleted contracts consisted of the following at June 30, 2019 December 31, 2018 June 30, 2019 December 31, 2018 Costs incurred on uncompleted contracts $ 11,636,297 $ 11,307,975 Estimated earnings to date on uncompleted contracts 1,299,731 838,615 Gross contract assets 12,936,028 12,146,590 Less: billings to date (13,099,656 ) (13,221,152 ) Net contract assets (liabilities) $ (163,628 ) $ (1,074,562 ) The above amounts are included in the accompanying consolidated balance sheets under the following captions at June 30, 2018 June 30, 2019 December 31, 2018 Costs and estimated earnings in excess of billings on uncompleted contracts $ 20,801 $ 260,325 Billings in excess of costs and estimated earnings on uncompleted contracts (184,429 ) (1,334,887 ) Net contract assets (liabilities) $ (163,628 ) $ (1,074,562 ) Although management believes it has established adequate procedures for estimating costs to complete on open contracts, it is at least reasonably possible that additional significant costs could occur on contracts prior to completion. The Company peri odically evaluates and revises its estimates and makes adjustments when they are considered necessary.

Property, Plant and Equipment

Property, Plant and Equipment	6 Months Ended
	Jun. 30, 2019
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment	6 Property, Plant and Equipment Property, plant and equipment are stated at cost less accumulated depreciation and amortization and depreciated using the straight-line method over their useful lives. At June 30, 2019 December 31, 2018 June 30, 2019 December 31, 2018 Computer equipment and software $ 39,193 $ 39,193 Furniture and other equipment 63,479 63,479 Property, plant and equipment 102,672 102,672 Less: accumulated depreciation (37,636 ) (31,335 ) Property, plant and equipment, net $ 65,036 $ 71,337 Depreciation expense for the six months June 30, 2019 2018 6,301 1,879

Net Income (Loss) Per Share

Net Income (Loss) Per Share	6 Months Ended
	Jun. 30, 2019
Net Income (Loss) Per Share [Abstract]
Net Income (Loss) Per Share	7 Net Income (Loss) Per Share Basic net income (loss) per share is computed by dividing the net income (loss) for the period by the weighted average number of common shares outstanding during the period. Diluted net income (loss) per share is computed by dividing the net income (loss) for the period by the weighted average number of common and potentially dilutive common shares outstanding during the period. Potentially dilutive common shares consist of the common shares issuable upon the exercise of stock options and warrants. Potentially dilutive common shares are excluded from the calculation if their effect is antidilutive. At June 30, 2019 outstanding that could potentially dilute future net income (loss) per share. Because the Company had a net loss for the three six months June 30, 2019 At June 30, 2018 , including options to non-employees and non-directors, and warrants to purchase 1,188,392 and 86,250 shares of common stock, respectively, outstanding that could potentially dilute future net income (loss) per share.

Construction Backlog

Construction Backlog	6 Months Ended
	Jun. 30, 2019
Construction Backlog [Abstract]
Construction Backlog	8 Construction Backlog The following represents the backlog of signed construction and engineering contracts in existence at June 30, 2019 December 31, 2018 June 30, 2019 December 31, 2018 June 30, 2019 December 31, 2018 Balance - beginning of period $ 97,657,379 $ 76,659,029 New contracts and change orders during the period, net 145,745 58,805,877 Adjustments and cancellations, net (24,571,359 ) (29,616,815 ) Subtotal 73,231,765 105,848,091 Less: contract revenue earned during the period (2,463,032 ) (8,190,712 ) Balance - end of period $ 70,768,733 $ 97,657,379 Backlog at June 30, 2019 2017 55 15 The Company expects that all of this revenue will be realized by June 30, 2022. During the fourth quarter of 2018 , the Company moved a contract of $ million out of backlog and into its pipeline until the customer completes a highest and best use analysis of the land. During the second quarter of 2019 25.0 The Company’s remaining backlog as of June 30, 2019 June 30, 2019 $ 70,768,733 The Company expects to satisfy its backlog which represents the remaining unsatisfied performance obligation on contracts as of June 30, 2019 2019 Within 1 $ 14,324,626 1 2 34,500,000 Thereafter 21,944,107 Total Backlog $ 70,768,733 Although backlog reflects business that is considered to be firm, cancellations, deferrals or scope adjustments may occur. Backlog is adjusted to reflect any known project cancellations, revisions to project scope and cost and project deferrals, as appropriate.

Stockholders' Equity

Stockholders' Equity	6 Months Ended
	Jun. 30, 2019
Stockholders' Equity [Abstract]
Stockholders' Equity	9 Stockholders’ Equity Public Offering – In June 2017, the Company issued 1,500,000 shares of its common stock at $5.00 per share through a public offering (the “Public Offering”). The Company incurred $1,388,615 in issuance costs from the Public Offering and issued 75,000 warrants valued at $55,475 to the underwriters (as discussed in Note 10 In July 2017, as permitted by the underwriting agreement entered into in connection with the Public Offering, the underwriters exercised their option to purchase an additional 225,000 shares of common stock at $5.00 per share. The Company incurred $176,771 in issuance costs from this issuance. In connection with this exercise, certain affiliates of the underwriters were granted additional warrants to purchase 11,250 shares of common stock in the aggregate valued at $8,321 (as discussed in Note 10 In connection with and prior to the Public Offering, the Company issued 1,801,670 shares of its common stock upon conversion of all outstanding preferred stock and shares of its common stock upon conversion of the previously outstanding convertible debentures . Securities Purchase Agreement – 847,750 379,816 84,775 10 Decrease in Authorized Shares – On June 5, 2019, at the Company’s annual meeting of stockholders, the stockholders approved an amendment to the Company’s amended and restated certificate of incorporation to decrease the number of authorized shares of common stock from 300,000,000 to 25,000,000 shares. Following the meeting, on June 5, 2019, the Company filed a certificate of amendment to the amended and restated certificate of incorporation to decrease its authorized shares of common stock accordingly. There was no change to the number of authorized shares of preferred stock.

Warrants

Warrants	6 Months Ended
	Jun. 30, 2019
Warrants [Abstract]
Warrants	10 Warrants In conjunction with the Public Offering, the Company issued to certain affiliates of the underwriters, as compensation, warrants to purchase an aggregate of shares of common stock at an exercise price of $ per share. The warrants are exercisable at the option of the holder on or after June 21, 2018 and expire . The fair value of warrants was calculated utilizing a Black- model and amounted to $ . The fair market value of the warrants as of the date of issuance has been included in issuance costs in additional paid-in capital. In conjunction with the Purchase Agreement in April 2019, the Company also sold warrants to purchase up to an aggregate of 847,750 1.375 October 29, 2024. T he Company issued to certain affiliates of the underwriters, as compensation, warrants to purchase an aggregate of 84,775 shares of common stock at an initial exercise price of $ 1.375 per share. The warrants are exercisable at the option of the holder on or after October 29, 2019 and expire April 24, 2024 .

Share-based Compensation

Share-based Compensation	6 Months Ended
	Jun. 30, 2019
Share-based Compensation [Abstract]
Share-based Compensation	11 Share-based Compensation On October 26, 2016, the Company’s Board of Directors approved the issuance of up to 500,000 shares of the Company’s common stock in the form of restricted stock or options (“ 2016 Stock Plan”). Effective January 20, 2017, the 2016 Stock Plan was amended and restated as the SG Blocks, . Stock Incentive Plan, as further amended eff June 1, 2018 (the “Incentive Plan”). The Incentive Plan authorizes the issuance of up to shares of common stock. It authorizes the issuance of equity-based awards in the form of stock options, stock appreciation rights, restricted shares, restricted share units, other share-based awards and cash-based awards to non-employee directors and to officers, employees and consultants of the Company and its subsidiaries, except that incentive stock options may only be granted to the Company’s employees and its subsidiary’s employees. The Incentive Plan expires on October 26, 2026, and is administered by the Compensation Committee of the Board of Directors of the Company. Each of the Company’s employees, directors, and consultants are eligible to participate in the Incentive Plan. As of June 30, 2019 shares of common stock available for issuance under the Incentive Plan. Stock-Based Compensation Expense Stock-based compensation expe Three June 30, Six Months Ended June 30, 2019 2018 2019 2018 Payroll and related expenses $ 170,118 $ 85,325 $ 332,611 $ 165,314 Marketing and business development expenses 6,750 — 6,750 — Total $ 176,868 $ 85,325 $ 339,361 $ 165,314 The following table presents total stock-based compensation expense by security type included in the consolidated statements of operations: Three June 30, Six Months Ended June 30, 2019 2018 2019 2018 Stock options $ 40,098 $ 85,325 $ 72,196 $ 165,314 Restricted stock units 136,770 — 267,165 — Total $ 176,868 $ 85,325 $ 339,361 $ 165,314 Stock-Based Option Awards The fair value of the stock-based option awards granted during the six months June 30, 2019 2018 2019 2018 Expected dividend yield — % — % Expected stock volatility 68.35 % 25.70 % Risk-free interest rate 2.44 % 2.56 % Expected life 3.00 5.00 Because the Company does not have significant historical data on employee exercise behavior, the Company uses the “Simplified Method” to calculate the expected life of the stock-based option awards granted to employees. The simplified method is calculated by averaging the vesting period and contractual term of the options. The following table summarizes stock-based option activities and changes during the six months June 30, 2019 , as described below: Shares Weighted Average Fair Value Per Share Weighted Average Exercise Price Per Share Weighted Average Remaining Terms (in years) Aggregate Intrinsic Value Outstanding – December 31, 2018 1,105,059 $ 1.24 $ 4.06 8.41 $ — Granted — — — Exercised — — — Cancelled (25,000 ) — — Outstanding – June 30, 2019 1,080,059 1.24 4.05 7.90 $ — Exercisable – December 31, 2018 949,355 1.23 4.00 8.30 — Exercisable – June 30, 2019 997,273 $ 1.24 $ 4.03 7.85 $ — For the three months June 30, 2019 2018 85,325 For the six months June 30, 2019 2018 , the Company recognized stock-based compensation expense of $72,196 and $165,314 , respectively, related to stock options. As of June 30, 2019 one June 30, 2019 In March 2018, the Company granted Mr. Galvin, Mr. Shetty and six purchase 82,154, 81,342 and an aggregate of 86,504, respectively, shares of the Company’s common stock with an exercise price of $4.61 per share. These options vest in equal quarterly installments over either a two three two 2019 three Non-Employee Stock Options In September 2017, in connection with an advisory agreement entered into by the Company (the “Advisory Agreement”), a consultant was granted options to purchase 50,000 shares of the Company’s common stock, with an exercise price of $6.25. The options were scheduled to vest when certain performance conditions were met. These performance conditions consisted of the purchase of fifty Restricted Stock Units Effective July 26, 2018, a total of 27,955 of restricted stock units were granted to the Company’s non-employee directors, under the Company’s stock-based compensation plan, at the calculated fair value of $5.36 per share, which represents the average closing price of the Company’s common stock for the ten including the grant date. Restricted stock units granted to directors in 2018 six On March 22, 2019, a total of 314,058 of restricted stock units were granted to Mr. Galvin, Mr. Armstrong, Mr. , six one Restricted stock units granted to Mr. Galvin, Mr. Armstrong, Mr. Shetty, and an aggregate of six one 122,785 , 15,432 , 114,575 61,266 , respectively, vest in installments over either a one two three four 847,957 On January 15, 2019 and February 26, 2019, a total of 10,514 of restricted stock units were granted to two ten The restricted stock units granted on January 15, 2019 will vest on January 15, 2020, subject to each individual’s continued service as a director of the Company through such date, and are payable six 2019 six Effective June 5, 2019, a total of 183,780 0.82 ten including the grant date. Restricted stock units granted to directors on June 5, 2019 vest on the earlier of (A) the first anniversary of the date of the grant or (B) the date of the annual meeting of the Company’s stockholders that occurs in the year immediately following the date of the grant; and are payable six For the three months June 30, 2019 2018 For the six months June 30, 2019 and 2018 , the Company recognized stock-based compensation expense of $267,165 and $0 related to restricted stock units. This expense is included in the payroll and related expenses and marketing and business development expenses in the accompanying condensed consolidated statement of operations. For the six months June 30, 2019 2018 The following table summarizes restricted stock unit activities during the six months June 30, 2019 Number of Shares Non-vested balance at January 1, 2019 22,364 Granted 508,349 Vested (27,792 ) Forfeited/Expired — Non-vested balance at June 30, 2019 502,921

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2019
Commitments and Contingencies [Abstract]
Commitments and Contingencies	12. Commitm Legal Proceedings The Company is subject to cert Pizzarotti Litigation – On or about August 10, 2018, Pizzarotti, LLC filed a complaint against the Company and Mahesh Shetty, the Company’s President, and others seeking unspecified damages for an alleged breach of contract by the Company and another entity named Phipps & Co. (“Phipps”). The lawsuit was filed as Pizzarotti, LLC. v. Phipps & Co., et al., Index No. 653996 2018 April 1, 2019, Phipps filed cross-claims against the Company and Mr. Shetty asserting claims for indemnification, contribution, fraud, negligence, negligent misrepresentation, and breach of contract. The claims against the Company arise from an Assignment Agreement, dated as of May 30, 2018, between Pizzarotti, Phipps and the Company (the “Assignment Agreement”), pursuant to which the Company intended to provide a letter of credit in exchange for an assignment of the proceeds from certain subcontracted work to be provided by Phipps to Pizzarotti. The Assignment Agreement was ultimately terminated, and the Company returned all payments to Phipps. Notwithstanding the above, Pizzarotti has sued seeking damages for nonperformance of the sub-contracted work and the return of a $500,000 payment from Phipps. Discovery in the matter is ongoing. The Company believes that the Assignment Agreement was properly terminated and believes that the claims brought against the Company and Mr. Shetty have no merit. The Company intends to vigorously defend the litigation. Litigation is subject to many uncertainties, and the outcome of this action is not predicted with assurance. The Company is currently unable to predict the possible loss or range of loss, if any, associated with the resolution of this litigation, and, accordingly, the Company has made no provision related to this matter in the condensed consolidated financial statements. Vendor Litigation – On January 1, 2019, SG Blocks filed a suit against Teton Buildings, LLC (“Teton”) to recover breach of contract damages of approximately $2,100,000 plus attorneys’ fees related to the HOLA Community Partners construction project in Los Angeles, California (the “HOLA Project”), for which Teton was engaged by the Company to supply modular units in early 2017 SG Blocks, Inc. v. Teton Buildings, LLC 2019 02827 SG Blocks believes it will prevail on the merits of the case. As with any litigation at this early stage, the cost of litigating and the outcome remain uncertain. HOLA Community Partners Matter – There is an ongoing dispute between the Company and HOLA Community Partners, a California non-profit corporation, in connection with the parties’ Construction and Delivery Agreement, dated June 1, 2017, pursuant to which HOLA Community Partners hired the Company for design, engineering, fabrication, and installation services for the construction of the HOLA Project. The Company claims that HOLA Community Partners owes the Company certain amounts due for work performed on the HOLA Project and extra costs incurred due to delays and impacts caused by HOLA Community Partners. HOLA Community Partners disputes the amounts owed, and claims that the Company failed to meet its contractual obligations. The parties are in ongoing settlement discussions. Neither party has commenced litigation as of the date of these condensed consolidated financial statements. In addition, the Company is subject to other routine legal proceedings, claims, and litigation in the ordinary course of its business. Defending lawsuits requires significant management attention and financial resources and the outcome of any litigation, including the matters described above, is inherently uncertain. The Company does not, however, currently expect that the costs to resolve these routine matters will have a material adverse effect on its consolidated financial position, results of operations, or cash flows. Vendor Litigation – On June 21, 2 019 19 21725

Subsequent Events

Subsequent Events	6 Months Ended
	Jun. 30, 2019
Subsequent Events [Abstract]
Subsequent Events	13. Subsequent Events 0. 85 The warrants will be exercisable beginning six 6 five 5 1.0625 125 two 2 one 3 five 5 The estimated net proceeds to the Company from the offering are expected to be approximately $587,000, after deducting underwriting discounts and commissions and non-accountable expenses payable by the Company. The closing of the sales of these securities under the Underwriting Agreement occurred on August 1, 2019. The offering was made pursuant to the Company’s effective registration statement on Form S- 3 333 228882 . The Underwriting Agreement contains customary representations, warranties and agreements by the Company, customary conditions to closing, indemnification obligations of the Company and the Underwriter, including for liabilities under the Securities Act of 1933 4 2

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2019
Summary of Significant Accounting Policies [Abstract]
Basis of presentation and principals of consolidation	Basis of presentation and principals of consolidation – The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 8 The condensed consolidated financial statements and notes should be read in conjunction with the financial statements and notes for the year ended December 31, 2018 December 31, 2018 , as filed with the Securities and Exchange Commission on March 29, 2019. In the opinion of management, all adjustments, consisting of normal accruals, considered necessary for a fair presentation of the interim financial statements have been included. Results for the six months ended June 30, 2019 The accompanying unaudited condensed consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries, SG Building Blocks,
Recently adopted accounting pronouncements	Recently adopted accounting pronouncements – New accounting pronouncements implemented by the Company are discussed below or in the related notes, where appropriate. In February 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2016 - 02 , “Leases (Topic 842 )” (“ASU 2016 - 02 ”). The 2016 - 02 twelve 2018 - 11 , “Leases (Topic 842 ): Targeted Improvements” (“ASU 2018 - 11 ”), which provides entities with an additional transition method. Under ASU 2018 - 11 , entities have the option of recognizing the cumulative effect of applying the new standard as an adjustment to beginning retained earnings in the year of adoption while continuing to present all prior periods under previous lease accounting guidance. In July 2018, the FASB also issued ASU No. 2018 - 10 , “Codification Improvements to Topic 842 , Leases” (“ASU 2018 - 10 ”), which clarifies how to apply certain aspects of ASU 2016 - 02 . The Company adopted ASU 2016 - 02 , ASU 2018 - 10 2018 - 11 effective he Company had no operating or finance lease agreements as of June 30, 2019 . The adoption of ASU No. 2016 - 02 did not have a In June 2018, the FASB issued ASU No. 2018 07 718 2018 07 718 2018 07 718 718 2018 07 718 1 2 606 2018 07 The adoption of ASU No. 2018 07 Recently issued accounting pronouncements not yet adopted – In January 2017, the FASB issued ASU No. 2017 04 2017 04 2 2017 04 In August 2018, the FASB issued ASU No. 2018 13 2018 13 820 3 2018 13 2018 13
Accounting estimates	Accounting estimates
Operating cycle	Operating cycle – six twelve In some instances, the length of the contract may exceed twelve one
Revenue recognition	Revenue recognition – The Company applies recognition of revenue over time, which is similar to the method the Company applied under previous guidance (i.e., percentage of completion). The Company determines, at contract inception, whether it will transfer control of a promised good or service over time or at a point in time—regardless of the length of contract or other factors. The recognition of revenue aligns with the timing of when promised goods or services are transferred to customers in an amount that reflects the consideration to which the Company expects to be entitled in exchange for those goods or services. To achieve this core principle, the Company applies the following five ( 1 Identify the contract with a customer; ( 2 Identify the performance obligations in the contract; ( 3 Determine the transaction price; ( 4 Allocate the transaction price to performance obligations in the contract; and ( 5 Recognize revenue as performance obligations are satisfied. Due to uncertainties inherent in the estimation process, it is possible that estimates of costs to complete a performance obligation will be revised in the near-term. For those performance obligations for which revenue is recognized using a cost-to-cost input method, changes in total estimated costs, and related progress toward complete satisfaction of the performance obligation, are recognized on a cumulative catch-up basis in the period in which the revisions to the estimates are made. When the current estimate of total costs for a performance obligation indicate a loss, a provision for the entire estimated loss on the unsatisfied performance obligation is made in the period in which the loss becomes evident. Disaggregation of Revenues The Company’s revenues are principally derived from construction and engineering contracts related to Modules. Our contracts are with many different customers in numerous industries. The following tab her disaggregation of the Company’s revenues by categories: Three Months Ended June 30, Revenue by Customer Type 2019 2018 Multi-Family $ 41,319 6 % $ 210,814 9 % Office 82,294 11 % 229,727 10 % Retail 606,725 83 % 416,976 18 % School — — % 1,100,403 48 % Special Use — — % 330,965 14 % Other (2,430 ) — % 16,912 1 % Total revenue by customer type $ 727,908 100 % $ 2,305,797 100 % Six Months Ended June 30, Revenue by Customer Type 2019 2018 Multi-Family $ 112,191 5 % $ 210,814 5 % Office 1,207,897 49 % 593,356 15 % Retail 1,137,384 46 % 531,920 14 % School — — % 1,860,238 48 % Special Use 6,812 — % 636,085 17 % Other (1,252 ) — % 16,912 1 % Total revenue by customer type $ 2,463,032 100 % $ 3,849,325 100 % Contract Assets and Contract Liabilities Accounts receivable are recognized in the period when the Company’s right to consideration is unconditional. Accounts receivable are recognized net of an allowance for doubtful accounts. A considerable amount of judgment is required in assessing the likelihood of realization of receivables. The timing of revenue recognition may differ from the timing of invoicing to customers. Contract assets include unbilled amounts from long-term construction services when revenue recognized under the cost-to-cost measure of progress exceeds the amounts invoiced to customers, as the amounts cannot be billed under the terms of our contracts. Such amounts are recoverable from customers based upon various measures of performance, including achievement of certain milestones, completion of specified units or completion of a contract. Contract assets are generally classified as current within the condensed consolidated balance sheets and labeled as “costs and estimated earnings in excess of billings on uncompleted contracts”. Contract liabilities from construction and engineering contracts occur when amounts invoiced to customers exceed revenues recognized under the cost-to-cost measure of progress. Contract liabilities additionally include advanced payments from customers on certain contracts. Contract liabilities decrease as the Company recognizes revenue from the satisfaction of the related performance obligation. Contract liabilities are generally classified as current within the condensed consolidated balance sheet and labeled as “billings in excess of costs and estimated earnings on uncompleted contracts”. Although the Company believes it has established adequate procedures for estimating costs to complete on open contracts, it is at least reasonably possible that additional significant costs could occur on contracts prior to completion. The Company periodically evaluates and revises its estimates and makes adjustments when they are considered necessary.
Cash and cash equivalents	Cash and cash equivalents – The Company considers cash and cash equivalents to include all short-term, highly liquid investments that are readily convertible to known amounts of cash and have original maturities of three June 30, 2019 $ as of December 31, 2018 .
Short-term investment	Short-term investment – The Company classifies any investment with a maturity greater than six months one no June 30, 2019 December 31, 2018
Accounts receivable and Allowance for Doubtful Accounts	Accounts receivable and allowance for doubtful accounts – Accounts receivable are receivables generated from sales to customers and progress billings on performance type contracts. Amounts included in accounts receivable are deemed to be collectible within the Company’s operating cycle. The Company recognizes account receivable at invoiced amounts. The allowance for doubtful accounts reflects the Company's best estimate of probable losses inherent in the accounts receivable balances. Management provides an allowance for doubtful accounts based on the Company’s historical losses, specific customer circumstances, and general economic conditions. Periodically, management reviews accounts receivable and adjusts the allowance based on current circumstances and charges off uncollectible receivables when all attempts to collect have been exhausted and the prospects for recovery are remote. Recoveries are recognized when they are received. Actual collection losses may differ from the Company’s estimates and could be material to its consolidated financial position, result of operations, and cash flows.
Inventory	Inventory – Raw construction materials (primarily shipping containers) are valued at the lower of cost (first-in, first-out method) or net realizable value. Finished goods and work-in-process inventories are valued at the lower of cost or net realizable value, using the specific identification method. There was no inventory as of June 30, 2019 December 31, 2018
Goodwill	Goodwill – The Company performs its impairment test of goodwill at the reporting unit level each fiscal year, or more frequently if events or circumstances change that would more likely than not reduce the fair value of its reporting unit below its carrying values. The Company first assesses qualitative factors to determine whether it is more likely than not that the fair value of the reporting unit is less than its carrying amount, including goodwill. If management concludes that it is more likely than not that the fair value of the reporting unit is less than its carrying amount, management conducts a two December 31, 2018
Intangible assets	I ntangible assets – Intangible assets represent the preliminary assets identified upon emergence from bankruptcy and consist of $ 2,766,000 20 1,113,000 2.5 28,820 $ 5,300 5 December 31, 2018 June 30, 2019 2018 The amortization expense for the three months ended June 30, 2019 and 2018 was $ 36,281 and $ 147,316, respectively. The amortization expense for the six months ended June 30, 2019 and 2018 was $ and $ , respectively. The estimated amortization expense for the successive five years is as follows: For the year ended December 31, 2019 $ 72,562 2020 145,124 2021 145,124 2022 140,800 2023 139,007 Thereafter 1,728,750 $ 2,371,367
Property, plant and equipment	Property, plant and equipment – Property, plant and equipment is stated at cost. Depreciation is computed using the straight-line method over the estimated lives of each asset. Estimated useful life for significant classes of assets are as follows: computer and software 3 to 5 years and equipment o
Common stock purchase warrants and other derivative financial instruments	Common stock purchase warrants and other derivative financial instruments – The Company classifies as equity any contracts that (i) require physical settlement or net-share settlement or (ii) provide a choice of net-cash settlement or settlement in the Company’s own shares (physical settlement or net-share settlement) providing that such contracts are indexed to the Company’s own stock. The Company classifies as assets or liabilities any contracts that (i) require net-cash settlement (including a requirement to net cash settle the contract if any event occurs and if that event is outside the Company’s control) or (ii) give the counterparty a choice of net-cash settlement or settlement in shares (physical settlement or net-share settlement). The Company assesses classification of common stock purchase warrants and other free standing derivatives at each reporting date to determine whether a change in classification between assets and liabilities or equity is required.
Fair value measurements	Fair value measurements – Financial instruments, including cash and cash equivalents, accounts receivable, accounts payable and accrued liabilities, are carried at cost, which the Company believes approximates fair value due to the short-term nature of these instruments. The Company measures the fair value of financial assets and liabilities based on the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. The Company maximizes the use of observable inputs and minimizes the use of unobservable inputs when measuring fair value. The Company uses three Level 1 Quoted prices in active markets for identical assets or liabilities. Level 2 Quoted prices for similar assets and liabilities in active markets or inputs that are observable. Level 3 Inputs that are unobservable (for example, cash flow modeling inputs based on assumptions).
Share-based payments	Share-based payments – The Company measures the cost of services received in exchange for an award of equity instruments based on the fair value of the award. For employees and directors, including non-employee directors, the fair value of a stock option award is measured on the grant date. The fair value amount is then recognized over the period services are required to be provided in exchange for the award, usually the vesting period. The Company recognizes stock-based compensation expense on a graded-vesting basis over the requisite service period for each separately vesting tranche of each award. Stock-based compensation expense to employees and all directors is reported within payroll and related expenses in the consolidated statements of operations. Stock-based compensation expense to non-employees is reported within marketing and business development expense in the consolidated statements of operations.
Income taxes	Income taxes – The Company accounts for income taxes utilizing the asset and liability approach. Under this approach, deferred taxes represent the future tax consequences expected to occur when the reported amounts of assets and liabilities are recovered or paid. The provision for income taxes generally represents income taxes paid or payable for the current year plus the change in deferred taxes during the year. Deferred taxes result from the differences between the financial and tax bases of the Company’s assets and liabilities and are adjusted for changes in tax rates and tax laws when changes are enacted. The calculation of tax liabilities involves dealing with uncertainties in the application of complex tax regulations. The Company recognizes liabilities for anticipated tax audit issues based on the Company’s estimate of whether, and the extent to which, additional taxes will be due. If payment of these amounts ultimately proves to be unnecessary, the reversal of the liabilities would result in tax benefits being recognized in the period when the liabilities are no longer determined to be necessary. If the estimate of tax liabilities proves to be less than the ultimate assessment, a further charge to expense would result.
Concentrations of credit risk	Concentrations of credit risk – Financial instruments that potentially subject the Company to concentration of credit risk consist principally of cash and cash equivalents. The Company places its cash with high credit quality institutions. At times, such amounts may be in excess of the FDIC insurance limits. The Company has not experienced any losses in its account and believes that it is not exposed to any significant credit risk on the account. With respect to receivables, concentrations of credit risk are limited to a few customers in the construction industry. The Company performs ongoing credit evaluations of its customers’ financial condition and, generally, requires no collateral from its customers other than normal lien rights. At June 30, 2019 December 31, 2018 76 Revenue relating to two customers represented approximately 91% and 60% of the Company’s total revenue for the three months June 30, 2019 2018 Revenue relating to two and one customers represented approximately 87 % and 48 % of the Company’s total revenue for the six months June 30, 2019 2018 , respectively. Cost of revenue relating to three two vendors represented approximately 92 % and 73 % of the Company’s total cost of revenue for the three months ended June 30, 2019 2018 , respectively. 60 six months June 30, 2019 2018

Liquidity (Tables)

Liquidity (Tables)	6 Months Ended
	Jun. 30, 2019
Liquidity [Member]
Liquidity [Line Items]
Schedule of expects to satisfy remaining unsatisfied performance obligation	2019 Within 1 $ 14,324,626 1 2 34,500,000 Thereafter 21,944,107 Total Backlog $ 70,768,733

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Tables)	6 Months Ended
	Jun. 30, 2019
Summary of Significant Accounting Policies [Abstract]
Schedule of disaggregation of revenues by categories	Three Months Ended June 30, Revenue by Customer Type 2019 2018 Multi-Family $ 41,319 6 % $ 210,814 9 % Office 82,294 11 % 229,727 10 % Retail 606,725 83 % 416,976 18 % School — — % 1,100,403 48 % Special Use — — % 330,965 14 % Other (2,430 ) — % 16,912 1 % Total revenue by customer type $ 727,908 100 % $ 2,305,797 100 % Six Months Ended June 30, Revenue by Customer Type 2019 2018 Multi-Family $ 112,191 5 % $ 210,814 5 % Office 1,207,897 49 % 593,356 15 % Retail 1,137,384 46 % 531,920 14 % School — — % 1,860,238 48 % Special Use 6,812 — % 636,085 17 % Other (1,252 ) — % 16,912 1 % Total revenue by customer type $ 2,463,032 100 % $ 3,849,325 100 %
Schedule of estimated amortization expense of intangible assets	For the year ended December 31, 2019 $ 72,562 2020 145,124 2021 145,124 2022 140,800 2023 139,007 Thereafter 1,728,750 $ 2,371,367

Accounts Receivable (Tables)

Accounts Receivable (Tables)	6 Months Ended
	Jun. 30, 2019
Accounts Receivable [Abstract]
Schedule of accounts receivable	June 30, 2019 December 31, 2018 Billed: Block sales $ — $ 14,723 Construction services 1,373,493 1,619,498 Engineering services 307,991 400,877 Retainage receivable 544,911 543,417 Other receivable 8,006 7,706 Total gross receivables 2,234,401 2,586,221 Less: allowance for doubtful accounts ( 1 (785,895 ) (839,895 ) Total net receivables $ 1,448,506 $ 1,746,326 ( 1 The allowance for doubtful accounts is primarily due to unpaid billings on a contract that is currently in dispute.

Contract Assets and Contract _2

Contract Assets and Contract Liabilities (Tables)	6 Months Ended
	Jun. 30, 2019
Contract Assets and Contract Liabilities [Abstract]
Schedule of costs and estimated earnings on uncompleted contracts	June 30, 2019 December 31, 2018 Costs incurred on uncompleted contracts $ 11,636,297 $ 11,307,975 Estimated earnings to date on uncompleted contracts 1,299,731 838,615 Gross contract assets 12,936,028 12,146,590 Less: billings to date (13,099,656 ) (13,221,152 ) Net contract assets (liabilities) $ (163,628 ) $ (1,074,562 )
Schedule of costs included in condensed consolidated balance sheets	June 30, 2019 December 31, 2018 Costs and estimated earnings in excess of billings on uncompleted contracts $ 20,801 $ 260,325 Billings in excess of costs and estimated earnings on uncompleted contracts (184,429 ) (1,334,887 ) Net contract assets (liabilities) $ (163,628 ) $ (1,074,562 )

Property, Plant and Equipment (

Property, Plant and Equipment (Tables)	6 Months Ended
	Jun. 30, 2019
Property, Plant and Equipment [Abstract]
Schedule of property, plant and equipment	June 30, 2019 December 31, 2018 Computer equipment and software $ 39,193 $ 39,193 Furniture and other equipment 63,479 63,479 Property, plant and equipment 102,672 102,672 Less: accumulated depreciation (37,636 ) (31,335 ) Property, plant and equipment, net $ 65,036 $ 71,337

Construction Backlog (Tables)

Construction Backlog (Tables)	6 Months Ended
	Jun. 30, 2019
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Schedule of backlog of signed construction and engineering contracts	June 30, 2019 December 31, 2018 Balance - beginning of period $ 97,657,379 $ 76,659,029 New contracts and change orders during the period, net 145,745 58,805,877 Adjustments and cancellations, net (24,571,359 ) (29,616,815 ) Subtotal 73,231,765 105,848,091 Less: contract revenue earned during the period (2,463,032 ) (8,190,712 ) Balance - end of period $ 70,768,733 $ 97,657,379
Construction Backlog [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Schedule of expects to satisfy remaining unsatisfied performance obligation	2019 Within 1 $ 14,324,626 1 2 34,500,000 Thereafter 21,944,107 Total Backlog $ 70,768,733

Share-based Compensation (Table

Share-based Compensation (Tables)	6 Months Ended
	Jun. 30, 2019
Share-based Compensation [Abstract]
Schedule of stock-based compensation expense included in statement of operations	Three June 30, Six Months Ended June 30, 2019 2018 2019 2018 Stock options $ 40,098 $ 85,325 $ 72,196 $ 165,314 Restricted stock units 136,770 — 267,165 — Total $ 176,868 $ 85,325 $ 339,361 $ 165,314 Three June 30, Six Months Ended June 30, 2019 2018 2019 2018 Payroll and related expenses $ 170,118 $ 85,325 $ 332,611 $ 165,314 Marketing and business development expenses 6,750 — 6,750 — Total $ 176,868 $ 85,325 $ 339,361 $ 165,314
Schedule of fair value stock-based option awards granted using Black-Scholes option valuation model	2019 2018 Expected dividend yield — % — % Expected stock volatility 68.35 % 25.70 % Risk-free interest rate 2.44 % 2.56 % Expected life 3.00 5.00
Schedule of employee stock option activity	Shares Weighted Average Fair Value Per Share Weighted Average Exercise Price Per Share Weighted Average Remaining Terms (in years) Aggregate Intrinsic Value Outstanding – December 31, 2018 1,105,059 $ 1.24 $ 4.06 8.41 $ — Granted — — — Exercised — — — Cancelled (25,000 ) — — Outstanding – June 30, 2019 1,080,059 1.24 4.05 7.90 $ — Exercisable – December 31, 2018 949,355 1.23 4.00 8.30 — Exercisable – June 30, 2019 997,273 $ 1.24 $ 4.03 7.85 $ —
Schedule of RSU activities	Number of Shares Non-vested balance at January 1, 2019 22,364 Granted 508,349 Vested (27,792 ) Forfeited/Expired — Non-vested balance at June 30, 2019 502,921

Liquidity (Details)

Liquidity (Details)	Jun. 30, 2019USD ($)
Liquidity [Line Items]
Total Backlog	$ 70,768,733
Liquidity [Member] | Within 1 year [Member]
Liquidity [Line Items]
Total Backlog	14,324,626
Liquidity [Member] | 1 to 2 years [Member]
Liquidity [Line Items]
Total Backlog	34,500,000
Liquidity [Member] | Thereafter [Memebr]
Liquidity [Line Items]
Total Backlog	$ 21,944,107

Liquidity (Details Textual)

Liquidity (Details Textual) - USD ($)	1 Months Ended
	Aug. 31, 2019	Apr. 30, 2019	Jul. 01, 2019	Jun. 30, 2019	Dec. 31, 2018	Jun. 30, 2018	Dec. 31, 2017
Liquidity [Line Items]
Cash and cash equivalents				$ 173,902	$ 1,368,395	$ 3,020,614	$ 4,870,824
Cash backlog				$ 70,800,000
Net proceeds		$ 552,709
Subsequent Event [Member]
Liquidity [Line Items]
Net proceeds	$ 587,000
Bid price, per share			$ 1
Minimum bid price			1
Closing bid price			$ 1

Summary of Significant Accoun_4

Summary of Significant Accounting Policies (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Disaggregation of Revenue [Line Items]
Total revenue by customer type	$ 727,908	$ 2,305,797	$ 2,463,032	$ 3,849,325
Total revenue by customer type, percentage	100.00%	100.00%	100.00%	100.00%
Multi-Family [Member]
Disaggregation of Revenue [Line Items]
Total revenue by customer type	$ 41,319	$ 210,814	$ 112,191	$ 210,814
Total revenue by customer type, percentage	6.00%	9.00%	5.00%	5.00%
Office [Member]
Disaggregation of Revenue [Line Items]
Total revenue by customer type	$ 82,294	$ 229,727	$ 1,207,897	$ 593,356
Total revenue by customer type, percentage	11.00%	10.00%	49.00%	15.00%
Retail [Member]
Disaggregation of Revenue [Line Items]
Total revenue by customer type	$ 606,725	$ 416,976	$ 1,137,384	$ 531,920
Total revenue by customer type, percentage	83.00%	18.00%	46.00%	14.00%
School [Member]
Disaggregation of Revenue [Line Items]
Total revenue by customer type		$ 1,100,403		$ 1,860,238
Total revenue by customer type, percentage		48.00%		48.00%
Special Use [Member]
Disaggregation of Revenue [Line Items]
Total revenue by customer type		$ 330,965	$ 6,812	$ 636,085
Total revenue by customer type, percentage		14.00%		17.00%
Other [Member]
Disaggregation of Revenue [Line Items]
Total revenue by customer type	$ (2,430)	$ 16,912	$ (1,252)	$ 16,912
Total revenue by customer type, percentage		100.00%		1.00%

Summary of Significant Accoun_5

Summary of Significant Accounting Policies (Details 1)	Jun. 30, 2019USD ($)
Summary of Significant Accounting Policies [Abstract]
2019	$ 72,562
2020	145,124
2021	145,124
2022	140,800
2023	139,007
Thereafter	1,728,750
Total	$ 2,371,367

Summary of Significant Accoun_6

Summary of Significant Accounting Policies (Details Textual)	3 Months Ended			6 Months Ended
	Jun. 30, 2019USD ($)VendorsCustomer	Dec. 31, 2018USD ($)	Jun. 30, 2018USD ($)VendorsCustomer	Jun. 30, 2019USD ($)VendorsCustomer	Jun. 30, 2018USD ($)VendorsCustomer	Dec. 31, 2017USD ($)
Summary of Significant Accounting Policies (Textual)
Intangible assets identified bankruptcy proceedings, description				Intangible assets represent the preliminary assets identified upon emergence from bankruptcy and consist of $2,766,000 of proprietary knowledge and technology which is being amortized over 20 years and $1,113,000 of customer contracts which is being amortized over 2.5 years. In addition, included in intangible assets is $ 28,820 of trademarks and $5,300 of website which is being amortized over 5 years.
Term of company's operating cycle				The length of the Company's contracts varies, but is typically between six to twelve months.
Inventory	$ 0	$ 0		$ 0
Goodwill impairment		0
Accumulated amortization	1,541,753		$ 1,174,205	1,541,753	$ 1,174,205
Amortization expense	36,281		147,316	72,562	294,632
Short-term investment	0	0		0
Cash and cash equivalents	$ 173,902	$ 1,368,395	$ 3,020,614	$ 173,902	$ 3,020,614	$ 4,870,824
Computer and software [Member] | Minimum [Member]
Summary of Significant Accounting Policies (Textual)
Estimated useful lives				3 years
Computer and software [Member] | Maximum [Member]
Summary of Significant Accounting Policies (Textual)
Estimated useful lives				5 years
Equipment [Member] | Minimum [Member]
Summary of Significant Accounting Policies (Textual)
Estimated useful lives				5 years
Equipment [Member] | Maximum [Member]
Summary of Significant Accounting Policies (Textual)
Estimated useful lives				7 years
Accounts receivable [Member]
Summary of Significant Accounting Policies (Textual)
Concentration risk, percentage				89.00%	76.00%
Number of customers | Customer				2	2
Revenue [Member]
Summary of Significant Accounting Policies (Textual)
Concentration risk, percentage	91.00%		60.00%	87.00%	48.00%
Number of customers | Customer	2		2	2	1
Cost of revenue [Member]
Summary of Significant Accounting Policies (Textual)
Concentration risk, percentage	92.00%		73.00%	92.00%	60.00%
Number of vendors | Vendors	3		2	3	2

Accounts Receivable (Details)

Accounts Receivable (Details) - USD ($)		Jun. 30, 2019	Dec. 31, 2018
Schedule of accounts receivable
Total gross receivables		$ 2,234,401	$ 2,586,221
Less: allowance for doubtful accounts	[1]	(785,895)	(839,895)
Total net receivables		1,448,506	1,746,326
Block sales [Member]
Schedule of accounts receivable
Total gross receivables			14,723
Construction services [Member]
Schedule of accounts receivable
Total gross receivables		1,373,493	1,619,498
Engineering services [Member]
Schedule of accounts receivable
Total gross receivables		307,991	400,877
Retainage receivable [Member]
Schedule of accounts receivable
Total gross receivables		544,911	543,417
Other receivable [Member]
Schedule of accounts receivable
Total gross receivables		$ 8,006	$ 7,706
[1]	The allowance for doubtful accounts is primarily due to unpaid billings on a contract that is currently in dispute.

Accounts Receivable (Details Te

Accounts Receivable (Details Textual) - USD ($)		6 Months Ended		12 Months Ended
		Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Accounts Receivable [Abstract]
Allowances for doubtful accounts	[1]	$ 785,895		$ 839,895
Provision for doubtful accounts		0		810,580
Collection of doubtful accounts		54,000
Accounts receivable write offs		$ 0		$ 4,920
[1]	The allowance for doubtful accounts is primarily due to unpaid billings on a contract that is currently in dispute.

Contract Assets and Contract _3

Contract Assets and Contract Liabilities (Details) - USD ($)	Jun. 30, 2019	Dec. 31, 2018
Schedule of costs and estimated earnings on uncompleted contracts
Costs incurred on uncompleted contracts	$ 11,636,297	$ 11,307,975
Estimated earnings to date on uncompleted contracts	1,299,731	838,615
Gross contract assets	12,936,028	12,146,590
Less: billings to date	(13,099,656)	(13,221,152)
Net contract assets (liabilities)	$ (163,628)	$ (1,074,562)

Contract Assets and Contract _4

Contract Assets and Contract Liabilities (Details 1) - USD ($)	Jun. 30, 2019	Dec. 31, 2018
Schedule of costs included in condensed consolidated balance sheets
Costs and estimated earnings in excess of billings on uncompleted contracts	$ 20,801	$ 260,325
Billings in excess of costs and estimated earnings on uncompleted contracts	(184,429)	(1,334,887)
Net contract assets (liabilities)	$ (163,628)	$ (1,074,562)

Property, Plant and Equipment_2

Property, Plant and Equipment (Details) - USD ($)	Jun. 30, 2019	Dec. 31, 2018
Schedule of company's equipment
Property, plant and equipment	$ 102,672	$ 102,672
Less: accumulated depreciation	(37,636)	(31,335)
Property, plant and equipment, net	65,036	71,337
Computer equipment and software [Member]
Schedule of company's equipment
Property, plant and equipment	39,193	39,193
Furniture and other equipment [Member]
Schedule of company's equipment
Property, plant and equipment	$ 63,479	$ 63,479

Property, Plant and Equipment_3

Property, Plant and Equipment (Details Textual) - USD ($)	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Property, Plant and Equipment (Textual)
Depreciation expense	$ 6,301	$ 1,879

Net Income (Loss) Per Share (De

Net Income (Loss) Per Share (Details) - shares	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Restricted stock units [Member]
Net Income (Loss) Per Share (Textual)
Warrants to purchase shares of common stock	530,712
Stock options [Member]
Net Income (Loss) Per Share (Textual)
Warrants to purchase shares of common stock	1,080,059	1,188,392
Warrants [Member]
Net Income (Loss) Per Share (Textual)
Warrants to purchase shares of common stock	1,018,775	86,250

Construction Backlog (Details)

Construction Backlog (Details) - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2019	Dec. 31, 2018
Construction Backlog [Abstract]
Balance - beginning of period	$ 97,657,379	$ 76,659,029
New contracts and change orders during the period	145,745	58,805,877
Adjustments and cancellations, net	(24,571,359)	(29,616,815)
Subtotal	73,231,765	105,848,091
Less: contract revenue earned during the period	(2,463,032)	(8,190,712)
Balance - end of period	$ 70,768,733	$ 97,657,379

Construction Backlog (Details 1

Construction Backlog (Details 1)	Jun. 30, 2019USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Total Backlog	$ 70,768,733
Within 1 year [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Total Backlog	14,324,626
1 to 2 years [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Total Backlog	34,500,000
Thereafter [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Total Backlog	$ 21,944,107

Construction Backlog (Details T

Construction Backlog (Details Textual)	3 Months Ended
	Jun. 30, 2019USD ($)	Dec. 31, 2018USD ($)	Sep. 30, 2017USD ($)Number
Construction Backlog (Textual)
Number of large contracts | Number			2
Total Backlog	$ 70,768,733
Contract One [Member]
Construction Backlog (Textual)
Construction backlog contract amount			$ 55,000,000
Contract Two [Member]
Construction Backlog (Textual)
Construction backlog contract amount			$ 15,000,000
Moved Contract [Member]
Construction Backlog (Textual)
Construction backlog contract amount	$ 25,000,000	$ 27,500,000

Stockholders' Equity (Details)

Stockholders' Equity (Details) - USD ($)	1 Months Ended			6 Months Ended
	Apr. 30, 2019	Jul. 31, 2017	Jun. 30, 2017	Jun. 30, 2019	Jun. 05, 2019	Jun. 04, 2019	Dec. 31, 2018
Stockholders' Equity (Textual)
Common stock, shares authorized				25,000,000	25,000,000	300,000,000	300,000,000
Purchase Agreement [Member]
Stockholders' Equity (Textual)
Issued shares of common stock	847,750
Common stock, per share	$ 1.10
Common stock purchase warrants	847,750
Issuance costs of offering	$ 379,816
Issued warrants	84,775
2016 Debentures [Member]
Stockholders' Equity (Textual)
Common stock issued upon conversion				516,667
IPO [Member]
Stockholders' Equity (Textual)
Issued shares of common stock		225,000	1,500,000
Common stock, per share		$ 5	$ 5
Issuance costs of offering		$ 176,771	$ 1,388,615
Issued warrants			75,000
Warrants issued			$ 55,475
Warrants to purchase of common stock		11,250
Fair value of warrants		$ 8,321
New Preferred Stock [Member]
Stockholders' Equity (Textual)
Common stock issued upon conversion				1,801,670

Warrants (Details)

Warrants (Details) - USD ($)	1 Months Ended	6 Months Ended
	Apr. 30, 2019	Jun. 30, 2019
Warrants (Textual)
Common stock exercise price		$ 0.72
October 29, 2019 and expire October 29, 2024 [Member]
Warrants (Textual)
Aggregate purchase warrants	847,750
Common stock exercise price	$ 1.375
October 29, 2019 and expire April 24, 2024 [Member]
Warrants (Textual)
Aggregate purchase warrants	84,775
Common stock exercise price	$ 1.375
Warrants [Member]
Warrants (Textual)
Aggregate purchase warrants		86,250
Common stock exercise price		$ 6.25
Maturity date		Jun. 21, 2023
Fair value of warrants		$ 63,796

Share-based Compensation (Detai

Share-based Compensation (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Stock-Based Compensation Expense
Total	$ 176,868	$ 85,325	$ 339,361	$ 165,314
Payroll and related expenses [Member]
Stock-Based Compensation Expense
Total	170,118	85,325	332,611	165,314
Marketing and business development expenses [Member]
Stock-Based Compensation Expense
Total	6,750		6,750
Restricted stock units [Member]
Stock-Based Compensation Expense
Total	136,770		267,165
Stock options [Member]
Stock-Based Compensation Expense
Total	$ 40,098	$ 85,325	$ 72,196	$ 165,314

Share-based Compensation (Det_2

Share-based Compensation (Details 1) - Employee Stock Option [Member]	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected dividend yield
Expected stock volatility	68.35%	25.70%
Risk-free interest rate	2.44%	2.56%
Expected life	3 years	5 years

Share-based Compensation (Det_3

Share-based Compensation (Details 2) - Stock options [Member] - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2019	Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares Outstanding, Beginning balance	1,105,059
Shares, Granted
Shares, Exercised
Shares, Cancelled	(25,000)
Shares Outstanding, Ending balance	1,080,059	1,105,059
Shares, Exercisable	997,273	949,355
Weighted Average Fair Value Per Share, Outstanding, Beginning balance	$ 1.24
Weighted Average Fair Value Per Share, Granted
Weighted Average Fair Value Per Share, Exercised
Weighted Average Fair Value Per Share, Cancelled
Weighted Average Fair Value Per Share, Outstanding, Ending balance	1.24	$ 1.24
Weighted Average Fair Value Per Share, Exercisable	1.24	1.23
Weighted Average Exercise Price Per Share, Outstanding, Beginning balance	4.06
Weighted Average Exercise Price Per Share, Granted
Weighted Average Exercise Price Per Share, Exercised
Weighted Average Exercise Price Per Share, Cancelled
Weighted Average Exercise Price Per Share, Outstanding, Ending balance	4.05	4.06
Weighted Average Exercise Price Per Share, Exercisable	$ 4.03	$ 4
Weighted Average Remaining Terms (in years), Outstanding, Beginning balance		8 years 4 months 28 days
Weighted Average Remaining Terms (in years), Outstanding, Ending balance	7 years 10 months 24 days
Weighted Average Remaining Terms (in years), Exercisable	7 years 10 months 6 days	8 years 3 months 18 days
Aggregate intrinsic Value, Outstanding, Beginning balance
Aggregate Intrinsic Value, Outstanding, Ending balance
Aggregate Intrinsic Value, Exercisable

Share-based Compensation (Det_4

Share-based Compensation (Details 3) - Restricted stock units [Member]	6 Months Ended
	Jun. 30, 2019shares
Share-based Compensation [Abstract]
Number of Shares, Non-vested beginning	22,364
Number of Shares, Granted	508,349
Number of Shares, Vested	(27,792)
Number of Shares, Forfeited/Expired
Number of Shares, Non-vested ending	502,921

Share-based Compensation (Det_5

Share-based Compensation (Details Textual)	Jun. 05, 2019$ / sharesshares	Mar. 22, 2019Employee$ / sharesshares	Jul. 26, 2018$ / sharesshares	Feb. 26, 2019$ / sharesshares	Mar. 31, 2018USD ($)Employee$ / sharesshares	Sep. 30, 2017$ / sharesshares	Oct. 26, 2016shares	Jun. 30, 2019USD ($)$ / sharesshares	Jun. 30, 2018USD ($)	Jun. 30, 2019USD ($)$ / sharesshares	Jun. 30, 2018USD ($)
Stock Options and Grants (Textual)
Recognized stock-based compensation expense | $								$ 40,098	$ 85,325	$ 72,196	$ 165,314
Unrecognized compensation costs | $								$ 91,717		$ 91,717
Fair value of stock price								$ 0.72		$ 0.72
Options vested, description					These options vest in equal installments over a two-year and three-year period and will fully vest by the end of March 31, 2021.
Fair value of options | $					$ 320,000
Number of employees | Employee					6
Restricted Stock [Member]
Stock Options and Grants (Textual)
Restricted stock or options issued, shares | shares	183,780	314,058		10,514
Recognized stock-based compensation expense | $								$ 136,770	$ 0	$ 267,165	0
Recognized stock-based compensation expense accrued | $										$ 108,629	$ 0
Fair value of stock price		$ 2.70
Options vested, description		Restricted stock units granted to Mr. Galvin, Mr. Armstrong, Mr. Shetty, and an aggregate of six employees and one consultant of 122,785, 15,432, 114,575 and an aggregate of 61,266, respectively, vest in installments over either a one-year, two-year, three-year and four-year period and will fully vest by the end of December 31, 2022. The fair value of these units upon issuance amounted to $847,957.
Number of employees | Employee		6
Advisory Agreement [Member]
Stock Options and Grants (Textual)
Granted options to purchase | shares						50,000
Exercise price						$ 6.25
Paul Galvin [Member]
Stock Options and Grants (Textual)
Granted options to purchase | shares					82,154
Exercise price					$ 4.61
Mahesh Shetty [Member]
Stock Options and Grants (Textual)
Granted options to purchase | shares					81,342
Exercise price					$ 4.61
Employees [Member]
Stock Options and Grants (Textual)
Granted options to purchase | shares					86,504
Exercise price					$ 4.61
Non-employee Director [Member] | Restricted Stock [Member]
Stock Options and Grants (Textual)
Fair value of stock price	$ 0.82			$ 2.94
Award granted (in shares) | shares			27,955
Fair value of award (in dollars per share)			$ 5.36
Non Employee Director One [Member] | Restricted Stock [Member]
Stock Options and Grants (Textual)
Fair value of stock price				$ 2.76
2016 Plan [Member]
Stock Options and Grants (Textual)
Restricted stock or options issued, shares | shares							500,000
Common stock available for issuance, shares | shares							2,500,000	836,426		836,426

Commitments and Contingencies (

Commitments and Contingencies (Details) - USD ($)	6 Months Ended
	Jun. 30, 2019	Jun. 21, 2019
Other Commitments [Line Items]
Payment to phipps	$ 500,000
Teton Buildings, LLC [Member]
Other Commitments [Line Items]
Damages value from Teton Buildings, LLC	$ 2,100,000
EDI International, PC [Member]
Other Commitments [Line Items]
Recovery of damages		$ 1,274,752

Subsequent Events (Details)

Subsequent Events (Details) - USD ($)	Jul. 29, 2019	Apr. 30, 2019
Purchase Agreement [Member]
Subsequent Events (Textual)
Shares Issued		847,750
Common stock purchase warrants		847,750
Subsequent Event [Member] | Underwriting Agreement [Member]
Subsequent Events (Textual)
Shares Issued	900,000
Shares issued, price per share	$ 0.85
Common stock purchase warrants	45,000
Warrants issued as percentage of total number of shares sold in offering	5.00%
Aggregate gross proceeds from sale of the Common Shares and Warrants	$ 765,000
Warrant description	The Warrant will be exercisable beginning six (6) months after the date of issuance and expire five (5) years after the date of the prospectus supplement filed in connection with the offering (the “Prospectus Supplement”). The Warrant will be exercisable at a price per share of $1.0625, which is equal to 125% of the initial public offering price of the shares sold in the offering. The Warrant may be exercised in whole or in part, and provides for “cashless” exercise, “piggyback” registration rights for two (2) years from the date of the initial exercise date of the Warrant, a one-time demand registration right on Form S-3 when available for five (5) years from the date of the Underwriting Agreement and customary anti-dilution protection in the event of stock splits, stock dividends, recapitalizations and the like.
Estimated net proceeds, after deducting underwriting discounts and commissions and non-accountable expenses	$ 587,000