Cash Dividend

12 Months Ended

Dec. 31, 2018

Dividends, Cash [Abstract]

Cash Dividend [Text Block]

(6) Cash Dividend

On August 10, 2017, the Company’s Board of Directors declared a special cash dividend of $0.15 per share of the Company’s common stock. This special cash dividend, aggregating approximately $6.6 million, was paid on September 26, 2017 to stockholders of record as of August 30, 2017. See Notes 8 and 15.