ACNB is a financial holding company. The company provides banking, insurance, and financial services to businesses and consumers through its wholly-owned subsidiaries, ACNB Bank (the Bank) and Russell Insurance Group, Inc. (RIG). The Bank engages in commercial and consumer banking and wealth management services through its community banking office locations in Adams, Cumberland, Franklin, and York Counties, PA. Through its nonbanking subsidiary, RIG, the company provides a range of property and casualty and group life and health insurance to both commercial and individual clients.

Air T is a holding company. Through its subsidiaries, the company operates the following industry segments: overnight air cargo, which operates in the air express delivery services industry; ground equipment sales, which manufactures and provides mobile deicers and other equipment products; ground support services, which provides ground support equipment maintenance and facilities maintenance services; commercial aircraft, engines and parts, which provides services including commercial aircraft disassembly/part-out services; and printing equipment and maintenance, which designs, manufactures and sells digital print production equipment and provides maintenance services to commercial customers.

Anixa Biosciences is a biotechnology company focused on using the body's immune system to diagnose, treat and prevent cancer. The company's subsidiary, Anixa Diagnostics Corporation, develops Cchek?, a platform for non-invasive blood tests for the early detection of cancer. The company's subsidiary, Certainty Therapeutics, Inc., develops immuno-therapy drugs against cancer. The company has focused on the development of a treatment for ovarian cancer. The company is also engaged in limited patent licensing activities in the area of encrypted audio/video conference calling.

Armstrong Flooring is a producer of resilient flooring products for use primarily in the construction and renovation of commercial, residential and institutional buildings. The company designs, manufactures, sources and sells flooring products primarily in North America and the Pacific Rim.

Barnwell Industries is engaged in the business of: acquiring, developing, producing and selling oil and natural gas in Canada including evaluating proposals by third parties with regard to participation in exploratory and developmental operations elsewhere; investing in land interests in Hawaii; and drilling water and water monitoring wells of varying depths in Hawaii, installing and repairing water pumping systems through its wholly-owned subsidiary, Water Resources International, Inc., which is the distributor for Floway pumps and equipment in the state of Hawaii.

Brickell Biotech is a clinical-stage pharmaceutical company focused on the development of prescription therapeutics for the treatment of debilitating skin diseases. The company's pipeline consists of therapeutics for hyperhidrosis and other prevalent dermatological conditions. The company's Sofpironium bromide is a topical anticholinergic product candidate, developed for once-daily treatment of primary axillary hyperhidrosis in adult and pediatric patients nine years of age and older. Sofpironium bromide was retrometabolically designed. Retrometabolic drugs are intended to exert their action topically and are metabolized once absorbed into the blood.

ElectroCore is a commercial-stage bioelectronic medicine company with a proprietary non-invasive vagus nerve stimulation (nVNS) therapy. nVNS is a platform therapy that modulates neurotransmitters and immune function through its pharmacologic effects on both the peripheral and central nervous systems. The company is focused on neurology and rheumatology, and its therapy, gammaCore for use by adults for the following neurology indications: the acute treatment of pain associated with each of migraine and episodic cluster headache; and the prevention of cluster headaches. The company is also engaging in clinical development for potential labeling claims in rheumatology, with a focus on rheumatoid arthritis.

JMP Group is a holding company. Through its subsidiaries, the company is a capital markets firm. The company provides investment banking, sales and trading, and equity research services to corporate and institutional clients as well as alternative asset management products and services to institutional investors and individuals. In addition, the company manages and invests in corporate credit instruments through collateralized loan obligations and direct investments, and it serves as the investment advisor to a business development company. The company's investment banking provides capital raising services, mergers and acquisitions transaction services, and other advisory services to corporate clients.

MediciNova is a biopharmaceutical company focused on developing small molecule therapeutics for the treatment of diseases. The company is focusing its development activities on MN-166 (ibudilast) for neurological disorders such as progressive multiple sclerosis, amyotrophic lateral sclerosis, chemotherapy-induced peripheral neuropathy, degenerative cervical myelopathy, glioblastoma, and substance dependence and addiction, and MN-001 (tipelukast) for fibrotic diseases such as nonalcoholic steatohepatitis and idiopathic pulmonary fibrosis. The company's pipeline also includes MN-221 (bedoradrine) for the treatment of acute exacerbation of asthma and MN-029 (denibulin) for solid tumor cancers.

Northern Technologies International develops and markets proprietary products and services either directly or via a network of subsidiaries, joint ventures, independent distributors, and agents. The company's primary business is corrosion prevention marketed mainly under the ZERUST? brand. The company sells its proprietary ZERUST? products and services to the automotive, electronics, electrical, mechanical, military and retail consumer markets, and the oil and gas industry. The company also markets and sells a portfolio of bio-based and certified compostable (fully biodegradable) polymer resin compounds and finished products under the Natur-Tec? brand.

Palatin Technologies is a biopharmaceutical company developing medicines that modulate the activity of the melanocortin and natriuretic peptide receptor systems. The company's product candidates are targeted, receptor-specific therapeutics for the treatment of diseases with unmet medical need and commercial potential. The company's primary product, Vyleesi? is indicated for the treatment of premenopausal women with acquired, generalized hypoactive sexual desire disorder, characterized by low sexual desire that causes marked distress or interpersonal difficulty. The company's product development activities focus on melanocortin receptors, MC1r agonists, with potential to treat inflammatory and autoimmune diseases.

Plumas Bancorp is a bank holding company. Through its subsidiary, Plumas Bank, the company serves the financial needs of individuals and businesses. The company's retail lending services include consumer, automobile and home equity loans. The company's commercial lending services include term real estate, commercial and industrial term loans. The company also provides government- guaranteed and agricultural loans as well as credit lines. The company's deposit products for the retail and commercial banking markets including checking, interest-bearing and premium interest-bearing checking, business sweep, public funds sweep, savings, time deposit and retirement accounts, as well as remote deposit, telephone and mobile banking.

Sumo Group is engaged in the development of video games providing both turnkey and co-development solutions. Co.'s development solution, includes initial concept and pre-production, production and development, and post-release support. Co. develops games across all console platforms, PC, handheld and mobile devices.

Travelzoo provides insider deals on travel, entertainment, and lifestyle experiences across multiple digital platforms, including email, web, social media and mobile applications. The company's publications and products include the Travelzoo website (travelzoo.com), the Travelzoo iPhone and Android apps, the Travelzoo Top 20? email newsletter, and the Newsflash email alert service. The company operates the Travelzoo Network, a network of third-party websites that list deals published by Travelzoo. The Travelzoo website includes Local Deals and Getaway listings that allow its members to purchase vouchers for deals from local businesses such as spas, hotels and restaurants.

Trecora Resources is engaged in the manufacturing of various petrochemical products and synthetic waxes and the provision of custom processing services. The company also owns an interest in Al Masane Al Kobra Mining Company, a Saudi Arabian closed joint stock mining company, which is engaged in the commercial production of copper and zinc concentrates and silver and gold dore, and an interest in Pioche Ely Valley Mines, Inc., a mining corporation which owns undeveloped properties in the U.S. The company has two segment: the manufacturing of various specialty petrochemical products through South Hampton Resources, Inc. and the manufacturing of specialty synthetic waxes through Trecora Chemical, Inc.

Vista Gold and its subsidiaries operate in the gold mining industry. Co. is focused on the evaluation, acquisition, exploration and advancement of gold exploration and potential development projects. Co.'s principal asset is its 100.0% owned Mt. Todd gold project in the Northern Territory, Australia. Co. also holds 4.2% of the outstanding common shares in the capital of Midas Gold Corp., non-core projects in Mexico, and royalty interests in Indonesia and the U.S.