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Stockholders' Equity (Tables)
 3 Months Ended
Mar. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Nonvested Restricted Stock Shares Activity [Table Text Block]
The following table contains summarized information about restricted stock issued during the year ended December 31, 2020 and the three months ended March 31, 2021:
Restricted Stock ActivityCommon SharesWeighted Average
Grant Date
Fair Value		Weighted Average
Remaining Years
to Vest
Nonvested at December 31, 201931,282 $2.15 1.9
Granted390,625 0.32 
Vested(408,241)0.39 
Forfeited— 
Nonvested at December 31, 202013,666 $2.28 1.4
Granted30,324 4.86 
Vested(9,823)4.19 
Forfeited— 
Nonvested at March 31, 202134,167 $4.02 0.9
Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]
The following table contains summarized information about restricted stock units during the year ended December 31, 2020 and the three months ended March 31, 2021:
Restricted Stock Units ActivityCommon SharesWeighted Average
Grant Date
Fair Value		Weighted Average
Remaining Years
to Vest
Nonvested at December 31, 2019366,812 $0.42 3.2
Granted930,145 0.37 
Vested(172,441)0.41 
Forfeited(154,167)0.30 
Nonvested at December 31, 2020970,349 $0.39 1.2
Granted100,000 3.94 
Vested(524,256)0.47 
Forfeited— — 
Nonvested at March 31, 2021546,093 $0.96 1.8
Share-based Payment Arrangement, Option, Activity [Table Text Block]
A summary of option activity under the 2011 Equity Incentive Plans during the year ended December 31, 2020 and the three months ended March 31, 2021, is presented below:
Options OutstandingCommon SharesWeighted Average
Exercise Price		Weighted Average
Remaining Life
(Years)
Outstanding at December 31, 20191,357,837 $3.24 7.2
Granted411,350 0.69 
Exercised(369)1.00 
Expired— — 
Forfeited(56,012)5.08 
Outstanding at December 31, 20201,712,806 $2.56 6.9
Granted44,155 2.61 
Exercised(1,510)1.42 
Expired— — 
Forfeited(6,934)5.57 
Outstanding at March 31, 20211,748,517 $2.55 6.8
Exercisable at March 31, 20211,070,149 $3.60 5.7
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
The Company used the following assumptions for stock options granted under the 2011 Equity Incentive Plans during the three months ended March 31, 2021 and 2020:
Three Months Ended
2011 Equity Incentive Plans AssumptionsMarch 31,
2021		March 31,
2020
Expected term6 years6 years
Weighted average volatility117.97%101.92%
Weighted average risk-free interest rate0.70%1.71%
Expected dividends——
Weighted average expected forfeiture rate19.64%15.32%
Schedule of Share-based Compensation, Employee Stock Purchase Plan, Activity [Table Text Block] Total stock-based compensation expense recognized on restricted stock, restricted stock units, stock options, and employee stock purchase plan issuances during the three months ended March 31, 2021 and 2020 was recorded in the Company’s consolidated statements of operations and comprehensive loss as follows:
Three Months Ended
March 31,
2021		March 31,
2020
Cost of revenue$1,454 $7,004 
Sales and marketing5,430 22,056 
General and administrative191,102 100,511 
Total stock-based compensation$197,986 $129,571 
Equity Incentive 2011 Plan [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
The following table shows the number of stock options granted under the Company’s 2011 Equity Incentive Plans and the assumptions used to determine the fair value of those options using a Black-Scholes option-pricing model during the three months ended March 31, 2021 and 2020:
Period EndedTotal Stock
Options
Granted		Weighted-Average Exercise PriceWeighted-Average Expected TermWeighted-Average VolatilityWeighted-Average Risk-Free Interest RateExpected DividendsWeighted-Average
Grant Date
Fair Value
March 31, 20208,917 $0.256 years101.92%1.71%— $0.16
March 31, 202144,155 $2.616 years117.97%0.70%— $2.24
Stock options  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Schedule of Nonvested Share Activity [Table Text Block]
A summary of the nonvested stock option activity under the 2011 Equity Incentive Plans during the year ended December 31, 2020 and the three months ended March 31, 2021, is presented below:
Nonvested OptionsCommon SharesWeighted Average
Grant Date
Fair Value		Weighted Average
Remaining Years
to Vest
Nonvested at December 31, 2019600,779 $0.64 3.0
Granted411,350 0.56 
Vested(283,766)0.72 
Forfeited(12,877)0.88 
Nonvested at December 31, 2020715,486 $0.56 2.5
Granted44,155 2.24 
Vested(79,460)0.72 
Forfeited(1,813)0.64 
Nonvested at March 31, 2021678,368 $0.64 2.4