UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM 10-K/A

Amendment No. 1

For the fiscal year ended December 31, 2018

OR

For the transition period from            to            

Commission File Number: 1-12584

Registrant’s telephone number, including area code:
(301) 417-4364

Securities registered pursuant to Section 12(g) of the Act:
None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.

Yes ¨ No x

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.

Yes ¨ No x

Indicate by check mark whether the issuer: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.

Yes x No ¨

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (section 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).

Yes x No ¨

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of issuer’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. x

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions of “large accelerated filer, “accelerated filer,” “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act. (Check one):

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.   ¨

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).

Yes ¨ No x

The aggregate market value of the registrant’s common stock held by non-affiliates of the registrant as of June 29, 2018, the last business day of the registrant’s recently completed second quarter, was approximately $27.8 million based on $8.40, the closing price of the registrant’s common stock as reported by the NYSE American on that date.

As of February 26, 2019, the registrant had 15,484,411 shares of common stock outstanding.

Documents incorporated by reference: None

EXPLANATORY NOTE

This Amendment No. 1 on Form 10-K/A hereby amends the Registrant's Annual Report on Form 10-K for the fiscal year ended December 31, 2018 (the “Original Filing”), which the Registrant filed with the Securities and Exchange Commission on February 27, 2019. This Amendment No. 1 is being filed solely to correct and replace Exhibit 23.1 to the Original Filing, which inadvertently omitted a reference to the Registrant’s registration statement on Form S-1.

Except as described above, no changes have been made to the Original Filing and this Amendment No. 1 does not modify, amend or update in any way any of the financial or other information contained in the Original Filing. This Amendment No. 1 does not reflect events that may have occurred subsequent to the Original Filing Date.

Accordingly, this Amendment No. 1 should be read in conjunction with the Original Filing Pursuant to Rule 12b-15 under the Securities Exchange Act of 1934, as amended, this Amendment No. 1 also contains new certifications pursuant to Section 302 and Section 906 of the Sarbanes-Oxley Act of 2002, which are attached hereto.