Quarterly report pursuant to Section 13 or 15(d)

Shareholders' Equity - Additional Information (Detail)

Shareholders' Equity - Additional Information (Detail)											3 Months Ended				6 Months Ended	12 Months Ended
Shareholders' Equity - Additional Information (Detail)	May 10, 2019	Jun. 22, 2018 shares	Apr. 06, 2018 $ / shares shares	Mar. 09, 2018 shares	Jan. 25, 2018 shares	Jan. 08, 2018 $ / shares shares	Nov. 08, 2017 USD ($) $ / shares shares	Jul. 25, 2017 USD ($) $ / shares shares	May 10, 2017 USD ($) Investor $ / shares shares	Feb. 09, 2017 shares	Dec. 31, 2017 $ / shares shares	Sep. 30, 2017 shares	Jun. 30, 2017 USD ($) shares	Mar. 31, 2017 shares	Jun. 30, 2018 $ / shares shares	Dec. 31, 2017 $ / shares shares	Jan. 19, 2018 shares	Jan. 18, 2018 shares	Jan. 31, 2017 shares
Class of Stock [Line Items]
Number of authorized shares of all classes of our capital stock																			120,000,000
Common stock, shares authorized		45,000,000									200,000,000				200,000,000	200,000,000	45,000,000		100,000,000
Common stock par value \| $ / shares						$ 0.001					$ 0.001				$ 0.001	$ 0.001
Stock issued during period shares reverse stock splits ratio						0.10
Effective date of common stock split						Jan. 19, 2018
Common stock, shares outstanding											4,928,335				6,102,635	4,928,335	4,900,000
Preferred stock, shares authorized											50,000,000				50,000,000	50,000,000
Fractional share from reverse stock split						0
Warrants granted			900,000												900,000	2,177,425
Sale of stock, price per share \| $ / shares			$ 0.001
Warrant exercise price \| $ / shares			$ 2
Common stock issued during period			900,000
Common stock issued, offering price per share \| $ / shares			$ 2.00
Term of warrants			5 years
Non-exercisable term of warrants			6 months
Number of accredited investors \| Investor									3
Warrants exercise price per share \| $ / shares			$ 2.00
Intrexon [Member] \| Unsecured Non-convertible Promissory Note [Member]
Class of Stock [Line Items]
Debt instrument, face amount \| $							$ 2,400,000
Debt instrument, accrued interest \| $							$ 3,400,000
2012 Equity Incentive Plan [Member] \| Restricted Stock [Member]
Class of Stock [Line Items]
Unrecognized compensation expense \| $													$ 29,372
Scenario, Previously Reported [Member]
Class of Stock [Line Items]
Common stock, shares authorized																		450,000,000
Common stock, shares outstanding																		49,000,000
Series B Preferred Stock [Member]
Class of Stock [Line Items]
Preferred stock, shares authorized							6,600,000
Convertible into shares of common stock							1,320,002
Fixed conversion price \| $ / shares							$ 2.50
Preferred stock, par value \| $ / shares							$ 0.001
Voting rights							No voting rights
Convertible preferred stock, terms of conversion							Conversion of one share of Series B Preferred Stock into two shares of Common Stock.
Series B Preferred Stock [Member] \| Private Placement [Member]
Class of Stock [Line Items]
Gross proceed of preferred stock \| $							$ 3,300,000
Series B Preferred Stock [Member] \| Private Placement [Member] \| Fall 17 Warrant [Member]
Class of Stock [Line Items]
Term of warrants							7 years
Non-exercisable term of warrants							6 months
Warrants to purchase common stock, issued							1,064,518
Warrants exercise price per share \| $ / shares							$ 3.10
Series C Preferred Stock [Member]
Class of Stock [Line Items]
Preferred stock, shares authorized							1,000
Preferred stock, par value \| $ / shares							$ 0.001
Preferred stock dividend rate							12.00%
Preferred stock issued as dividend					1.733
Series C Preferred Stock [Member] \| Intrexon [Member]
Class of Stock [Line Items]
Number of shares of common stock issued in connection with conversion of preferred stock							100
Series C Preferred Stock [Member] \| Scenario, Forecast [Member]
Class of Stock [Line Items]
Preferred stock dividend rate	20.00%
Convertible Preferred Stock [Member]
Class of Stock [Line Items]
Number of shares of preferred stock converted				2,583,000
Common Stock [Member]
Class of Stock [Line Items]
Number of shares of common stock issued in connection with conversion of preferred stock				258,300
Series A Preferred Stock [Member]
Class of Stock [Line Items]
Preferred stock, shares authorized									12,000,000
Convertible into shares of common stock								1,200,001
Fixed conversion price \| $ / shares								$ 2.50
Preferred stock, par value \| $ / shares									$ 0.001
Voting rights									No voting rights
Series A Preferred Stock [Member] \| Maximum [Member]
Class of Stock [Line Items]
Gross proceed of preferred stock \| $									$ 3,000,000
Series A Preferred Stock [Member] \| Preferred Stock Issued Upon Initial Closing [Member]
Class of Stock [Line Items]
Term of warrants									7 years
Non-exercisable term of warrants									6 months
Gross proceed of preferred stock \| $									$ 1,302,000
Warrants to purchase common stock, issued									462,106
Warrants exercise price per share \| $ / shares									$ 3.10
Series A Preferred Stock [Member] \| Preferred Stock Issued Upon Second Closing [Member]
Class of Stock [Line Items]
Term of warrants								7 years
Non-exercisable term of warrants								6 months
Gross proceed of preferred stock \| $								$ 1,698,000
Warrants to purchase common stock, issued								602,414
Warrants exercise price per share \| $ / shares								$ 3.10
Non-employee Directors [Member] \| 2012 Equity Incentive Plan [Member] \| Restricted Stock [Member]
Class of Stock [Line Items]
Restricted shares awarded to each non-employee director		4,000								4,000
Restricted shares vest in each quarter end											1,000	1,000	1,000	1,000
Amendment [Member]
Class of Stock [Line Items]
Number of authorized shares of all classes of our capital stock																			270,000,000
Common stock, shares authorized		200,000,000																	250,000,000
Amendment Two [Member]
Class of Stock [Line Items]
Common stock, shares authorized											450,000,000					450,000,000