Quarterly report pursuant to Section 13 or 15(d)

Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard (Details Textual)

Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard (Details Textual) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 6 Months Ended
Jun. 08, 2018
May 23, 2018
Apr. 23, 2018
Dec. 31, 2018
Sep. 13, 2018
Jun. 30, 2018
Jun. 26, 2018
Mar. 31, 2018
Stockholders' Equity, Reverse Stock Split The effective date of the reverse stock split was June 8, 2018. On July 5, 2018, the Company received a letter from NYSE American informing the Company that it has resolved the deficiency with respect to low selling price, described in Section 1003(f)(v) of the Company guide and was back in compliance. On January 31, 2019, the closing price of the Company’s common stock was $0.87. On May 23, 2018, the Company's board of directors approved the implementation of a reverse stock split at a ratio of one-for-ten (1:10) shares of the Company's Common Stock. As a result of the reverse stock split, every ten (10) shares of the Company's Common Stock either issued and outstanding or held by the Company in its treasury immediately prior to the effective time was, automatically and without any action on the part of the respective holders thereof, combined and converted into one (1) share of the Company's common stock. No fractional shares were issued in connection with the reverse stock split. Stockholders who otherwise were entitled to receive a fractional share in connection with the reverse stock split instead were eligible to receive a cash payment, which was not material in the aggregate, instead of shares. On April 23, 2018, the Company held a special meeting of its stockholders at which the stockholders approved a proposal to effect an amendment to the Company's certificate of incorporation, as amended, to implement a reverse stock split at a ratio to be determined by the Company's Board of Directors in a range not less than one-for-two (1:2) and not greater than one-for-ten (1:10).          
Share Price         $ 0.87   $ 0.90  
Entity Listing, Description       On June 6, 2018, the Company received notification from the NYSE American that it was not in compliance with the continued listing standards as set forth in Section 1003(a)(iii) of the NYSE American’s Company Guide that, which applies if a listed company has stockholders’ equity of less than $6,000,000 and has sustained losses from continuing losses and/or net losses in its five most recent fiscal years.        
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest       $ 11,078   $ 16,164   $ 4,200