Stockholders' Equity - Additional Information (Details) - USD ($)					1 Months Ended			3 Months Ended
	Feb. 09, 2018	Feb. 05, 2018	Dec. 13, 2017	Oct. 10, 2017	Dec. 31, 2015	Dec. 31, 2011	Nov. 30, 2008	Mar. 31, 2018	Mar. 31, 2017	Feb. 01, 2018	Dec. 31, 2017	Dec. 18, 2017
Class Of Stock [Line Items]
Preferred stock, shares authorized			5,000,000					10,000,000
Common stock, shares authorized			11,000,000					50,000,000			50,000,000
Common stock, par value								$ 0.0001			$ 0.0001
Preferred stock, conversion basis								one-for-one basis
Common stock voting rights								one vote for each share
Common stock, shares issued								12,773,289			5,514,917
Gross proceeds from issuance of common stock								$ 19,500,000
Warrants to purchase common stock										380,000
Warrants exercise price										$ 6.00
Relative fair value of warrants issued in connection with initial public offering								669,408
Exercise of stock options								$ 54,575
Preferred stock, shares outstanding								0
Description of preferred shares convertible terms								Series A Preferred Stock, Series B Preferred Stock, and Series C Preferred Stock (“Preferred Shares”) are convertible at any time at the option of the holder into one share of common stock.
Preferred stock, no par value
Weighted-average grant date fair value of common stock options issued								0	0
Unvested common stock options, net of estimated forfeitures								$ 215,760
Unearned stock-based compensation expected to be recognized								1 year
Maximum
Class Of Stock [Line Items]
Ownership interest percentage								10.00%
Options expiration period date of grant								10 years
Minimum
Class Of Stock [Line Items]
Proceeds from convertible preferred stock to common stock			$ 10,000,000
Preferred stock, par value			$ 5.00
Fair market value of common stock on date of grant								110.00%
Options expiration period date of grant								5 years
Stock Options
Class Of Stock [Line Items]
Number of common stock issued								321,366
Exercise of stock options								$ 54,575
Common Stock
Class Of Stock [Line Items]
Number of common stock issued								321,366
Exercise of stock options								$ 32
Common Stock | Maximum | 2017 Equity Incentive Plan
Class Of Stock [Line Items]
Number of shares issued												1,500,000
Common Stock | 2000 Plan
Class Of Stock [Line Items]
Number of shares granted							3,000,000
Common Stock | 2011 Plan
Class Of Stock [Line Items]
Shares available for grant											240,000
Common Stock | 2011 Plan | Maximum
Class Of Stock [Line Items]
Number of shares granted						1,500,000
Common Stock | 2015 Plan
Class Of Stock [Line Items]
Shares available for grant											790,000
Common Stock | 2015 Plan | Maximum
Class Of Stock [Line Items]
Number of shares granted					1,500,000
Common Stock | Board of Directors | 2011 Plan
Class Of Stock [Line Items]
Shares available for grant				0
Stock options, termination date				Oct. 10, 2017
Common Stock | Board of Directors | 2015 Plan
Class Of Stock [Line Items]
Shares available for grant				0
Stock options, termination date				Oct. 10, 2017
Warrants
Class Of Stock [Line Items]
Warrants exercise price								$ 5.00
Relative fair value of warrants issued in connection with initial public offering								$ 699,408
Fair value assumptions, contractual term								5 years
Fair value assumptions, volatility rate								42.70%
Fair value assumptions, dividend rate								0.00%
Fair value assumptions, risk-free interest rate								2.72%
Number of Shares, Warrants granted								380,000
Initial Public Offering
Class Of Stock [Line Items]
Number of Shares, Warrants granted								380,000
Initial Public Offering | Common Stock
Class Of Stock [Line Items]
Common stock, par value												$ 0.0001
Common stock, shares issued		3,800,000
Common stock price		$ 5.00
Gross proceeds from issuance of common stock		$ 19,000,000
Net proceeds from issuance of common stock		17,485,000
Underwriting discounts and commissions		1,330,000
Underwriter offering-related transaction costs		185,000
Accounting, legal and other fees and costs		1,148,352
Warrant expense		$ 699,408
Over-allotment Option | Common Stock
Class Of Stock [Line Items]
Common stock, shares issued	200,000
Common stock price	$ 5.00
Gross proceeds from issuance of common stock	$ 500,000
Net proceeds from issuance of common stock	465,000
Underwriting discounts and commissions	$ 35,000
Over-allotment Option | Common Stock | Under Writers
Class Of Stock [Line Items]
Over allotment option to purchase additional shares	100,000
Over-allotment Option | Common Stock | CEO’s Family Trust
Class Of Stock [Line Items]
Over allotment option to purchase additional shares	100,000
Series A Preferred Stock
Class Of Stock [Line Items]
Preferred stock, shares authorized			500,000								500,000
Common stock, par value										0.0001
Preferred stock, shares outstanding								0			500,000
Preferred stock, liquidation preference per share			$ 0.25								$ 125,000
Preferred stock, no par value
Series B Preferred Stock
Class Of Stock [Line Items]
Preferred stock, shares authorized			1,500,000								1,500,000
Common stock, par value										0.0001
Preferred stock, shares outstanding								0			1,450,000
Preferred stock, liquidation preference per share			$ 0.50								$ 725,000
Preferred stock, no par value											$ 0
Series C Preferred Stock
Class Of Stock [Line Items]
Preferred stock, shares authorized			2,000,000								2,000,000
Common stock, par value										$ 0.0001
Preferred stock, shares outstanding								0			1,087,006
Preferred stock, liquidation preference per share			$ 1.50								$ 1,630,508
Preferred stock, no par value											$ 0
Series A, Series B, and Series C, Preferred Stock
Class Of Stock [Line Items]
Stock split, conversion ratio										1