Summary of Significant Accounting Policies (Details) $ / shares in Units, $ in Thousands	6 Months Ended
	Jun. 30, 2019 USD ($) $ / shares shares
Total	58,850
April1,2019 to April 30, 2019 [Member]
Total number of shares purchased	9,282
Average price paid per share | $ / shares	$ 7.81
Total number of shares purchased as part of publicly announced program	9,282
Approximate dollar value of shares that may yet be purchased under the program | $	$ 2,830
May1, 2019 to May 31, 2019 [Member]
Total number of shares purchased	35,350
Average price paid per share | $ / shares	$ 7.94
Total number of shares purchased as part of publicly announced program	35,350
Approximate dollar value of shares that may yet be purchased under the program | $	$ 2,549
June1, 2019 to June 30, 2019 [Member]
Total number of shares purchased	14,218
Average price paid per share | $ / shares	$ 8.13
Total number of shares purchased as part of publicly announced program	14,218
Approximate dollar value of shares that may yet be purchased under the program | $	$ 2,433