| 2. Summary of Significant Accounting Policies (Policies) | 3 Months Ended |
| Mar. 31, 2019 |
| Accounting Policies [Abstract] | |
| Unaudited Interim Financial Information | Unaudited Interim Financial Information The Company has prepared the accompanying
interim consolidated financial statements pursuant to the rules and regulations of the Securities and Exchange Commission (the
“SEC”) for interim financial reporting. The interim consolidated financial statements are unaudited and, in the Company’s
opinion, include all adjustments, consisting of normal recurring adjustments and accruals necessary for a fair presentation of
the Company’s consolidated balance sheets, consolidated statements of operations and comprehensive income (loss), and consolidated
cash flows and statement of shareholders equity for the periods presented. The results reported in these interim consolidated financial
statements should not be regarded as necessarily indicative of results that may be expected for the entire year. Certain information
and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally
accepted in the United States (“GAAP”) have been omitted in accordance with regulations of the SEC. These interim consolidated
financial statements should be read in conjunction with the financial statements and notes thereto included in the Company’s
consolidated financial statements in the Company’s Annual Report on Form 10-K for the year ended December 31, 2018. |
| Prior Period Reclassifications | Prior Period Reclassifications Certain prior period amounts have been
reclassified to conform to the current period presentation. |
| Use of Estimates | Use of Estimates In preparing consolidated financial statements
in conformity with GAAP, management is required to make estimates and assumptions that affect the reported amounts of assets and
liabilities and the disclosure of assets and liabilities at the date of the consolidated financial statements and revenues and
expenses during the reported period. Actual results could differ from those estimates. Significant estimates include estimated
useful lives and potential impairment of property and equipment, inventory write offs, and allowance for bad debt. |
| Basis of Presentation and Principles of Consolidation | Basis of Presentation and Principles
of Consolidation These consolidated financial statements
are presented in United States dollars and they include the accounts of urban-gro, Inc. and its wholly-owned subsidiaries. The
financial results of Impact have been included in the Company’s consolidated financial statements from the date of acquisition
on March 7, 2019. |
| Recently Issued Accounting Pronouncements | Recently Issued Accounting Pronouncements From time to time, the Financial Accounting
Standards Board (the “FASB”) or other standards setting bodies issue new accounting pronouncements. The FASB issues
updates to new accounting pronouncements through the issuance of an Accounting Standards Update ("ASU"). Unless otherwise
discussed, the Company believes that the impact of recently issued guidance, whether adopted or to be adopted in the future, is
not expected to have a material impact on the Company’s financial statements upon adoption. |
| Going Concern Assessment | Going Concern Assessment In August 2014, the FASB issued an ASU
regarding disclosures of uncertainties when there are questions about an entity’s ability to continue as a going concern.
With the implementation of the ASU, beginning with the year ended December 31, 2016 and all annual and interim periods thereafter,
we assess going concern uncertainty for our consolidated financial statements to determine if we have sufficient cash and cash
equivalents on hand and working capital to operate for a period of at least one year from the date the consolidated financial statements
are issued or are available to be issued. As part of this assessment, based on conditions that are known and reasonably knowable
to us, we will consider various scenarios, forecasts, projections, and estimates, and make certain key assumptions, including the
timing and nature of projected cash expenditures or programs, and our ability to delay or curtail those expenditures or programs,
among other factors, if necessary. |
| Fair Value of Financial Instruments | Fair Value of Financial Instruments The Company’s financial instruments
consist principally of cash and cash equivalents, accounts receivable, accounts payable, notes payable and other current assets
and liabilities. We value our financial assets and liabilities using fair value measurements. Fair value is based on the price
that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at
the measurement date. Assets and liabilities measured at fair value are categorized based on whether the inputs are observable
in the market and the degree that the inputs are observable. The categorization of financial instruments within the valuation hierarchy
is based on the lowest level of input that is significant to the fair value measurement. The hierarchy is prioritized into three
levels defined as follows: Level 1: Quoted prices in active markets for identical
assets or liabilities that the entity has the ability to access. Level 2: Observable inputs other
than prices included in Level 1, such as quoted prices for similar assets and liabilities in active markets; quoted prices for
identical or similar assets and liabilities in markets that are not active; or other inputs that are observable or can be corroborated
with observable market data. Level 3: Unobservable inputs
that are supported by little or no market activity and that are significant to the fair value of the assets and liabilities. This
includes certain pricing models, discounted cash flow methodologies, and similar techniques that use significant unobservable inputs. The carrying amount of our cash and
cash equivalents, accounts receivable, accounts payable, and other current assets and liabilities in our consolidated financial
statements approximates fair value because of the short-term nature of the instruments. Investments in non-marketable equity securities
are carried at cost less other-than-temporary impairments. The carrying amount of our notes payable and convertible debt at March
31, 2019 and December 31, 2018 approximates their fair values based on our incremental borrowing rates. There have been no changes in Level 1,
Level 2, and Level 3 categorizations and no changes in valuation techniques for these assets or liabilities for the three-month
period ended March 31, 2019. |
| Cash and Cash Equivalents | Cash and Cash Equivalents The Company considers all highly liquid
short-term cash investments with an original maturity of three months or less to be cash equivalents. As of March 31, 2019 and
December 31, 2018, the Company did not maintain any cash equivalents. The Company maintains cash with financial institutions that
may from time to time exceed federally-insured limits. The Company has not experienced any losses related to these balances and
believes the risk to be minimal. |
| Accounts Receivable, Net | Accounts Receivable, Net Trade accounts receivables are carried
at the original invoiced amounts less an allowance for doubtful accounts. As of March 31, 2019 and December 31, 2018, the balance
of allowance for doubtful accounts was $18,920. The allowances for doubtful accounts are calculated based on a detailed review
of certain individual customer accounts and an estimation of the overall economic conditions affecting the Company's customer base.
The Company reviews a customer's credit history before extending credit to the customer. If the financial condition of its customers
were to deteriorate, resulting in an impairment of their ability to make payments, additions to the allowance would be required.
A provision is made against accounts receivable to the extent they are considered unlikely to be collected. Occasionally the Company
will write off bad debt directly to the bad debt expense account when the balance is determined to be uncollectable. Bad debt expense
for the three months ended March 31, 2019 and 2018 was $11,615 and $16,864, respectively. |
| Inventories | Inventories Inventories, consisting entirely of finished
goods inventories, are stated at the lower of cost or net realizable value, with cost determined using the average cost method.
The Company periodically reviews the value of items in inventory and provides write-downs or write-offs of inventory based on its
assessment of market conditions. Write-downs and write-offs are charged to cost of goods sold at the realization of change in value.
Once written down, inventories are carried at this lower basis until sold or scrapped. |
| Property and Equipment, Net | Property and Equipment, Net Property and equipment is stated
at cost less accumulated depreciation, amortization and impairment. Expenditures for major additions and improvements
are capitalized and minor replacements, maintenance, and repairs are charged to expense as incurred. When property and
equipment is retired or otherwise disposed of, the cost and accumulated depreciation are removed from the accounts and any
resulting gain or loss is included in the results of operations for the respective period. Depreciation is provided over the
estimated useful lives of the related assets using the straight-line method for financial statement purposes. The Company
uses other depreciation methods (generally accelerated) for tax purposes where appropriate. No impairment charges were
recorded for three months ended March 31, 2019 and 2018. The estimated useful lives for significant property and equipment
categories are as follows:
Computer and Technology Equipment 3 years
Furniture and Equipment 5 years
Operating Lease Right of Use Assets Lease term
Leasehold Improvements Lease term
Vehicles 3 years
Software 3 years
Other Equipment 3 or 5 years |
| Equity Investments | Equity Investments Equity investments without readily determinable
fair values and for which the Company does not have the ability to exercise significant influence are accounted for at cost with
adjustments for observable changes in prices or impairments. Equity investments for which the Company
has the ability to exercise significant influence, but not control, are accounted for using the equity method of accounting. The
Company’s share of the earnings or losses as reported by equity-method investees are classified as “Income (Loss) from
equity investees, net of tax” on the Company’s consolidated statements of operations and comprehensive income (loss). |
| Intangible Assets | Intangible Assets The Company’s intangible assets,
consisting of legal fees for application of patents and trademarks and license fees paid for inspection services, are recorded
at cost. Patents and trademarks, once approved, will be amortized using the straight-line method over an estimated life, generally
5 years for patents and 10 to 20 years for trademarks. License fees are amortized over 10 years. Intangible assets are included
in “other assets” on the balance sheets. |
| Customer Deposit | Customer Deposits The Company’s policy is to collect
deposits from customers at the beginning of the project prior to the design phase. The customer payments received are recorded
as a customer deposit liability on the balance sheet. When the project is complete and meets all the criteria for revenue recognition,
the deposit is recorded against the customer’s receivable balance. In certain situations when the customer has paid the deposit
and design work has been completed but the customer chooses not to proceed with the project, the Company may keep the deposit and
recognize revenue. |
| Revenue Recognition | Revenue Recognition The Company recognizes revenue in accordance with ASC 606, Revenue from Contracts with Customers, Revenue from Contracts with Customers |
| Cost of Sales | Cost of Sales The Company’s policy is to recognize
cost of sales the same manner as, and in conjunction with, revenue recognition. The Company’s cost of sales includes the
costs directly attributable to revenue recognized and includes expenses related to the purchasing of our products, fees for third-party
commissions and shipping costs. Total shipping costs included in the cost of goods sold was $128,867 and $76,200 for the three
months ended March 31, 2019 and 2018, respectively. |
| Advertising Costs | Advertising Costs The Company expenses advertisings costs
in the periods the costs are incurred. Prepayments made under contracts are included in prepaid expenses and expensed when the
advertisement is run. Total advertising expense incurred was $27,668 and $22,270 for the three months ended March 31, 2019 and
2018, respectively. |
| Derivative Financial Instruments | Derivative Financial Instruments The Company accounts for its warrants by
estimating the fair value of these warrants at the respective balance sheet dates using the Black-Scholes option pricing based
on the estimated market value of the underlying common stock at the valuation measurement date, the remaining contractual term,
risk-free interest rate, and expected volatility of the price of the underlying common stock. There is a moderate degree of subjectivity
involved when using option pricing models to estimate the warrants and the assumptions used in the Black-Scholes option-pricing
model are moderately judgmental. |
| Share Based Compensation | Share Based Compensation The Company periodically issues both options
and shares of its Common Stock to employees and consultants in non-capital raising transactions for fees and services. The Company accounts for stock issued
to non-employees with the value of the stock compensation based upon the measurement date as determined at the grant date of the
award. Accounting for stock-based compensation to non-employees requires the measurement and recognition of compensation expense
for all share-based payment awards made to non-employees based on estimated fair values. The Company accounts for stock grants issued
and vesting to employees with the award being measured at its fair value at the date of grant and amortized ratably over the vesting
period. Accounting for stock-based compensation to employees requires the measurement and recognition of compensation expense for
all share-based payment awards made to employees based on estimated fair values. The Company also estimates forfeitures at the
time of grant and revises those estimates in subsequent periods if actual forfeitures differ from its estimates. |
| Income Taxes | Income Taxes The Company files
a federal income tax return in the United States. In addition, it files tax returns in state and local jurisdictions as applicable.
Provisions for current income tax liabilities, if any, would be calculated and accrued on income and expense amounts expected to
be included in the income tax returns for the current year. Income taxes reported in earnings, if any, would also include deferred
income tax provisions. Deferred income
tax assets and liabilities, if any, would be computed on differences between the financial statement bases of assets and liabilities
at the enacted tax rates. Changes in deferred income tax assets and liabilities would be included as a component of income tax
expense. The effect on deferred income tax assets and liabilities attributable to changes in enacted tax rates would be charged
or credited to income tax expense in the period of enactment. Valuation allowances would be established for certain deferred tax
assets when realization is not likely. Assets and liabilities
would be established for uncertain tax positions taken or positions expected to be taken in income tax returns when such positions,
in the judgement of the Company, do not meet a more-likely-than-not threshold based on the technical merits of the positions. Valuation
allowances would be established for certain deferred tax assets when realization is not likely. |
| Earnings (Loss) Per Share | Earnings (Loss) Per Share The Company computes net earnings (loss)
per share by dividing net income (loss) available to common stockholders by the weighted average number of common shares outstanding
for the period. Diluted EPS is computed by dividing net income (loss) by the weighted-average of all potentially dilutive shares
of common stock that were outstanding during the periods presented, unless that calculation would result in an anti-dilutive calculation
of EPS. The treasury stock method is used in calculating
diluted EPS for potentially dilutive stock options and share purchase warrants, which assumes that any proceeds received from the
exercise of in-the-money stock options and share purchase warrants would be used to purchase common shares at the average market
price for the period. |
| Recently Adopted Accounting Pronoucements | Recently Adopted Accounting Pronouncements In February 2016, the FASB issued an ASU
amending the accounting for leases. The new guidance requires the recognition of lease assets and liabilities for operating leases
with terms of more than 12 months, in addition to those currently recorded, on our consolidated balance sheets. Presentation of
leases within the consolidated statements of operations and comprehensive income (loss) and consolidated cash flows will be generally
consistent with the prior lease accounting guidance. The ASU was effective for reporting periods beginning after December 13, 2018,
with early adoption permitted. The Company adopted the ASU effective January 1, 2019 under the modified retrospective method with
respect to lease contracts in effect as of the adoption date. The adoption of the ASU increased our assets and liabilities by $139,266
as of January 1, 2019 due to the recognition of right-of-use assets and lease liabilities with respect to operating leases. |
